diff --git a/.project b/.project
index 6addb9c..693be40 100644
--- a/.project
+++ b/.project
@@ -14,4 +14,15 @@
 	<natures>
 		<nature>org.eclipse.jdt.core.javanature</nature>
 	</natures>
+	<filteredResources>
+		<filter>
+			<id>1712506907498</id>
+			<name></name>
+			<type>30</type>
+			<matcher>
+				<id>org.eclipse.core.resources.regexFilterMatcher</id>
+				<arguments>node_modules|\.git|__CREATED_BY_JAVA_LANGUAGE_SERVER__</arguments>
+			</matcher>
+		</filter>
+	</filteredResources>
 </projectDescription>
diff --git a/Delete.java b/Delete.java
index 9efa73f..7fcec19 100644
--- a/Delete.java
+++ b/Delete.java
@@ -7,167 +7,143 @@
 import java.util.*;
 import static javax.swing.JOptionPane.showMessageDialog;
 
-public class Delete extends JFrame implements ActionListener
-{
+public class Delete extends JFrame implements ActionListener {
     private JLabel usnL;
     private JTextField usnT;
-    private JButton delete,back;
-    
-    Container con=null;
-    String usn="";
+    private JButton delete, back;
 
-    Delete()
-    {
+    Container con = null;
+
+    Delete() {
         super("Delete Record");
         con = getContentPane();
         con.setLayout(null);
-        Color  lightBlue = new Color(0,255,255);
+        Color lightBlue = new Color(0, 255, 255);
         con.setBackground(lightBlue);
 
-        con.setSize(300,300);
+        con.setSize(300, 300);
         con.setLayout(null);
         con.setVisible(true);
 
         Font font = new Font("Verdana", Font.BOLD, 16);
 
-        Color blue = new Color(30,144,255);
-        usnL=new JLabel("Enter USN of record to be deleted");
-        usnL.setBounds(400, 50, 700,150);
+        Color blue = new Color(30, 144, 255);
+        usnL = new JLabel("Enter USN of record to be deleted");
+        usnL.setBounds(400, 50, 700, 150);
         usnL.setFont(font);
         usnL.setForeground(Color.BLACK);
 
-        usnT=new JTextField(200);
-		usnT.setBounds(725,100,250,50);
+        usnT = new JTextField(200);
+        usnT.setBounds(725, 100, 250, 50);
         usnT.setFont(font);
         usnT.setForeground(Color.BLACK);
 
         delete = new JButton("Delete");
-		delete.setBounds(400,600,150,40);
-		delete.addActionListener(this);
+        delete.setBounds(400, 600, 150, 40);
+        delete.addActionListener(this);
         delete.setFont(font);
-        Color pul = new Color(0,0,255);
-        Border bored = BorderFactory.createLineBorder(pul,5);
+        Color pul = new Color(0, 0, 255);
+        Border bored = BorderFactory.createLineBorder(pul, 5);
         delete.setBorder(bored);
         delete.setForeground(Color.WHITE);
         delete.setBackground(blue);
 
         back = new JButton("Go Back");
-		back.setBounds(600,600,150,40);
-		back.addActionListener(this);
+        back.setBounds(600, 600, 150, 40);
+        back.addActionListener(this);
         back.setFont(font);
         back.setBorder(bored);
         back.setForeground(Color.WHITE);
         back.setBackground(blue);
 
-
         con.add(usnL);
-		con.add(usnT);
+        con.add(usnT);
         con.add(delete);
         con.add(back);
     }
 
-    public void actionPerformed(ActionEvent ae) 
-    {
-        if(ae.getSource()==delete)
-        {
-			try{
+    public void actionPerformed(ActionEvent ae) {
+        if (ae.getSource() == delete) {
+            try {
                 String usn = usnT.getText();
-                String usn1="",r;
-                int count=0;
-                File file = new File("student.txt");  //student
-                BufferedReader br = new BufferedReader(new FileReader(file));
-
-                File file1 = new File("journal.txt");  //journal
-                BufferedReader br1 = new BufferedReader(new FileReader(file1));
-
-                File temp = new File("temp.txt");  //student temp
-                Boolean createNewFile = temp.createNewFile();
-                BufferedWriter pw = new BufferedWriter(new FileWriter(temp));
-
-                File temp1 = new File("temp1.txt");  //journal temp
-                Boolean createNewFile1 = temp.createNewFile();
-                BufferedWriter pw1 = new BufferedWriter(new FileWriter(temp1));
-                while((r= br.readLine()) !=null)
-                {	
-                    String[] result = r.split("\\|");
-                    usn1=result[1];
-                    if(usn1.equals(usn)) 
-                    {
-                        count=1;
+                boolean found = false;
+                File studentFile = new File("student.csv");
+                File tempStudentFile = new File("temp.csv");
+
+                BufferedReader studentReader = new BufferedReader(new FileReader(studentFile));
+                BufferedWriter studentWriter = new BufferedWriter(new FileWriter(tempStudentFile));
+
+                String studentLine;
+                while ((studentLine = studentReader.readLine()) != null) {
+                    String[] parts = studentLine.split(",");
+                    if (parts.length > 1 && parts[1].equals(usn)) {
+                        found = true;
                         continue;
                     }
-                    else
-                    {
-                        pw.write(r);
-                        pw.write("\n");
-                    } 
+                    studentWriter.write(studentLine);
+                    studentWriter.newLine();
                 }
 
-                while((r= br1.readLine()) !=null)
-                {	
-                    String[] result = r.split("\\|");
-                    usn1=result[0];
-                    if(usn1.equals(usn)) 
-                    {
+                studentReader.close();
+                studentWriter.close();
+
+                if (found) {
+                    studentFile.delete();
+                    tempStudentFile.renameTo(studentFile);
+                }
+
+                File journalFile = new File("journal.csv");
+                File tempJournalFile = new File("temp.csv");
+
+                BufferedReader journalReader = new BufferedReader(new FileReader(journalFile));
+                BufferedWriter journalWriter = new BufferedWriter(new FileWriter(tempJournalFile));
+
+                String journalLine;
+                while ((journalLine = journalReader.readLine()) != null) {
+                    String[] parts = journalLine.split(",");
+                    if (parts.length > 0 && parts[0].equals(usn)) {
                         continue;
                     }
-                    else
-                    {
-                        pw1.write(r);
-                        pw1.write("\n");
-                    } 
+                    journalWriter.write(journalLine);
+                    journalWriter.newLine();
                 }
 
-                if(count == 0)
-                    showMessageDialog(null, "Invalid USN");
-                else
+                journalReader.close();
+                journalWriter.close();
+
+                if (found) {
+                    journalFile.delete();
+                    tempJournalFile.renameTo(journalFile);
                     showMessageDialog(null, "Record Deleted!");
+                } else {
+                    showMessageDialog(null, "Record with provided USN not found!");
+                }
 
-                pw.flush();
-                pw.close();
-                br.close();	
-                pw1.close();
-                br1.close();
-        
-                file.delete();
-                temp.renameTo(file);
-                file1.delete();
-                temp1.renameTo(file1);
-                
-            }
-            catch(Exception e)
-            {
+            } catch (Exception e) {
                 e.printStackTrace();
             }
 
             this.dispose();
-            Home h=new Home();
-            h.setSize(2300,790);
+            Home h = new Home();
+            h.setSize(2300, 790);
             h.setVisible(true);
         }
 
-        if(ae.getSource()==back)
-        {
-            try
-            {
+        if (ae.getSource() == back) {
+            try {
                 this.dispose();
-                Home h=new Home();
-                h.setSize(2300,790);
+                Home h = new Home();
+                h.setSize(2300, 790);
                 h.setVisible(true);
-            }
-            catch(Exception e)
-            {
+            } catch (Exception e) {
                 e.printStackTrace();
             }
         }
     }
-    
-  
-    
-    public static void main(String args[])
-    {
-        Delete del=new Delete();
-		del.setSize(2300,790);
-		del.setVisible(true);
-    }   
+
+    public static void main(String args[]) {
+        Delete del = new Delete();
+        del.setSize(2300, 790);
+        del.setVisible(true);
+    }
 }
diff --git a/Display.java b/Display.java
index 7959dd1..a6efe53 100644
--- a/Display.java
+++ b/Display.java
@@ -1,142 +1,119 @@
 import java.awt.*;
 import javax.swing.*;
 import javax.swing.border.Border;
-
 import java.awt.event.*;
 import java.io.*;
 import java.util.*;
-import static javax.swing.JOptionPane.showMessageDialog;
 
-public class Display extends JFrame implements ActionListener
-{
-    
-    private JLabel displayheading;
+public class Display extends JFrame implements ActionListener {
+
+    private JLabel displayHeading;
     private JTextArea output;
-    private JButton display,back;
-    
-    Container con=null;
+    private JButton display, back;
 
-    Display()
-    {
+    Container con = null;
 
+    Display() {
         super("Display Record");
         con = getContentPane();
         con.setLayout(null);
-        Color  lightBlue = new Color(0,255,255);
+        Color lightBlue = new Color(0, 255, 255);
         con.setBackground(lightBlue);
 
-        con.setSize(300,300);
+        con.setSize(300, 300);
         con.setLayout(null);
         con.setVisible(true);
 
-        Color blue = new Color(30,144,255);
+        Color blue = new Color(30, 144, 255);
         Font font = new Font("Verdana", Font.BOLD, 16);
 
-        displayheading=new JLabel("The records are:");
-        displayheading.setBounds(200, 2, 700,150);
-        displayheading.setFont(font);
-        displayheading.setForeground(Color.BLACK);
+        displayHeading = new JLabel("The records are:");
+        displayHeading.setBounds(200, 2, 700, 150);
+        displayHeading.setFont(font);
+        displayHeading.setForeground(Color.BLACK);
 
-        output=new JTextArea();
-        output.setBounds(20, 150, 1200,400);
+        output = new JTextArea();
         output.setFont(font);
         output.setForeground(Color.BLACK);
         output.setEditable(false);
+        output.setLineWrap(true);  // Wrap lines
+        output.setWrapStyleWord(true);  // Wrap at word boundaries
+
+        JScrollPane scrollPane = new JScrollPane(output);  // Add scroll bar
+        scrollPane.setBounds(20, 150, 1400, 400);
+        scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
 
         display = new JButton("Display");
-		display.setBounds(400,600,150,40);
-		display.addActionListener(this);
+        display.setBounds(400, 600, 150, 40);
+        display.addActionListener(this);
         display.setFont(font);
-        Color pul = new Color(0,0,255);
-        Border bored = BorderFactory.createLineBorder(pul,5);
+        Color pul = new Color(0, 0, 255);
+        Border bored = BorderFactory.createLineBorder(pul, 5);
         display.setBorder(bored);
         display.setForeground(Color.WHITE);
         display.setBackground(blue);
 
         back = new JButton("Go Back");
-		back.setBounds(600,600,150,40);
-		back.addActionListener(this);
+        back.setBounds(600, 600, 150, 40);
+        back.addActionListener(this);
         back.setFont(font);
         back.setBorder(bored);
         back.setForeground(Color.WHITE);
         back.setBackground(blue);
 
-        con.add(displayheading);
-		con.add(output);
+        con.add(displayHeading);
+        con.add(scrollPane);  // Add scroll pane instead of output directly
         con.add(display);
         con.add(back);
-
     }
 
-    public void actionPerformed(ActionEvent ae) 
-    {
-        if(ae.getSource()==display)
-        {
-			try
-            {
-                String name = "", usn ="", sem = "", branch = "", cgpa= "", nob="", company="",ctc="",comments="", r;
-
-                File temp = new File("temp.txt");
-				Boolean createNewFile1 = temp.createNewFile();
-                BufferedWriter pw = new BufferedWriter(new FileWriter("temp.txt"));
-                String b = "NAME\t|USN\t|SEM\t|BRANCH\t|CGPA\t|NOB\t|COMPANY\t|CTC\t|COMMENTS";
-                pw.write(b); 
-                pw.write("\n");
-
-                BufferedReader br = new BufferedReader(new FileReader("student.txt"));
-                while((r= br.readLine()) !=null)
-		        {
-		        	String[] result = r.split("\\|");
-		        	name=result[0];
-		        	usn=result[1];
-		        	sem= result[2];
-		        	branch=result[3];
-		        	cgpa=result[4];
-		        	nob=result[5];
-                    company=result[6];
-                    ctc=result[7];
-                    comments=result[8];
-                    if(name.equals("999"))
-                        break;
-                    String bb = name  + "\t|" + usn + "\t|" + sem + "\t|" + branch + "\t|" + cgpa + "\t|" + nob + "\t|" + company + "\t|" + ctc + "\t|" + comments;
-                    pw.write(bb);
+    public void actionPerformed(ActionEvent ae) {
+        if (ae.getSource() == display) {
+            try {
+                BufferedWriter pw = new BufferedWriter(new FileWriter("temp.csv"));
+                String header = "NAME,USN,SEM,BRANCH,CGPA,NOB,COMPANY,CTC,COMMENTS";
+                pw.write(header);
+                pw.write("\n" + "------------------------------------------------------------------------------------------------------------------------------------------------------------" + "\n");
+
+                BufferedReader br = new BufferedReader(new FileReader("student.csv"));
+                String line;
+                while ((line = br.readLine()) != null) {
+                    pw.write(line);
                     pw.write("\n");
-		        }
+                }
                 br.close();
                 pw.close();
-                File file = new File("temp.txt");
+
+                File file = new File("temp.csv");
                 BufferedReader br1 = new BufferedReader(new FileReader(file));
-                output.read(br1,null);
-                br1.close(); 
+                StringBuilder displayText = new StringBuilder();
+                while ((line = br1.readLine()) != null) {
+                    displayText.append(String.format("%-40s%n", line.replace(",", "\t"))); 
+                }
+                output.setText(displayText.toString());
+                br1.close();
                 output.requestFocus();
-                file.delete();  
-            }
-            catch(Exception e)
-            {
+                file.delete();
+            } catch (Exception e) {
                 e.printStackTrace();
             }
         }
 
-        if(ae.getSource()==back)
-        {
-            try
-            {
+        if (ae.getSource() == back) {
+            try {
                 this.dispose();
-                Home h=new Home();
-                h.setSize(2300,790);
+                Home h = new Home();
+                h.setSize(2600, 790);
                 h.setVisible(true);
-            }
-            catch(Exception e)
-            {
+            } catch (Exception e) {
                 e.printStackTrace();
             }
         }
     }
 
-    public static void main(String args[])
-    {
-        Display dis=new Display();
-		dis.setSize(2300,790);
-		dis.setVisible(true);
-    }   
+    public static void main(String args[]) {
+        Display dis = new Display();
+        dis.setSize(2600, 790);
+        dis.setVisible(true);
+    }
 }
diff --git a/Eligible.java b/Eligible.java
index 25de75e..6e28a2a 100644
--- a/Eligible.java
+++ b/Eligible.java
@@ -7,69 +7,66 @@
 import java.util.*;
 import static javax.swing.JOptionPane.showMessageDialog;
 
-public class Eligible extends JFrame implements ActionListener
-{
-    
-    private JLabel eligibleheading,eligibleheading1,eligibleheading2,eligibleheading3;
+public class Eligible extends JFrame implements ActionListener {
+
+    private JLabel eligibleheading, eligibleheading1, eligibleheading2, eligibleheading3;
     private JTextArea output;
-    private JButton display,back;
-    
-    Container con=null;
+    private JButton display, back;
+
+    Container con = null;
 
-    Eligible()
-    {
+    Eligible() {
         super("Placement Eligibility");
         con = getContentPane();
         con.setLayout(null);
-        Color  lightBlue = new Color(0,255,255);
+        Color lightBlue = new Color(0, 255, 255);
         con.setBackground(lightBlue);
 
-        con.setSize(300,300);
+        con.setSize(300, 300);
         con.setLayout(null);
         con.setVisible(true);
 
         Font font = new Font("Verdana", Font.BOLD, 16);
-        Color blue = new Color(30,144,255);
-        eligibleheading=new JLabel("PLACEMENT ELIGIBILITY");
-        eligibleheading.setBounds(550, 5, 700,20);
+        Color blue = new Color(30, 144, 255);
+        eligibleheading = new JLabel("PLACEMENT ELIGIBILITY");
+        eligibleheading.setBounds(550, 5, 700, 20);
         eligibleheading.setFont(font);
         eligibleheading.setForeground(Color.BLACK);
 
-        eligibleheading1=new JLabel("PLATINUM PACKAGE: CGPA>=8 AND NO BACKLOGS ALLOWED");
-        eligibleheading1.setBounds(200, 50, 700,20);
+        eligibleheading1 = new JLabel("PLATINUM PACKAGE: CGPA>=8 AND NO BACKLOGS ALLOWED");
+        eligibleheading1.setBounds(200, 50, 700, 20);
         eligibleheading1.setFont(font);
         eligibleheading1.setForeground(Color.BLACK);
 
-        eligibleheading2=new JLabel("GOLD PACKAGE: CGPA>=7 AND NO BACKLOGS ALLOWED");
-        eligibleheading2.setBounds(200, 75, 700,20);
+        eligibleheading2 = new JLabel("GOLD PACKAGE: CGPA>=7 AND NO BACKLOGS ALLOWED");
+        eligibleheading2.setBounds(200, 75, 700, 20);
         eligibleheading2.setFont(font);
         eligibleheading2.setForeground(Color.BLACK);
 
-        eligibleheading3=new JLabel("SILVER PACKAGE: CGPA>=6");
-        eligibleheading3.setBounds(200, 100, 700,20);
+        eligibleheading3 = new JLabel("SILVER PACKAGE: CGPA>=6");
+        eligibleheading3.setBounds(200, 100, 700, 20);
         eligibleheading3.setFont(font);
         eligibleheading3.setForeground(Color.BLACK);
 
-
-        output=new JTextArea();
-        output.setBounds(100, 150, 1150,450);
+        output = new JTextArea();
+        output.setBounds(100, 150, 1300, 450);
         output.setFont(font);
         output.setForeground(Color.BLACK);
         output.setEditable(false);
 
         display = new JButton("Display");
-		display.setBounds(400,600,150,40);
-		display.addActionListener(this);
+        display.setBounds(400, 600, 150, 40);
+        display.addActionListener(this);
         display.setFont(font);
-        Color pul = new Color(0,0,255);
-        Border bored = BorderFactory.createLineBorder(pul,5);
+        Color pul = new Color(0, 0, 255);
+        Border bored = BorderFactory.createLineBorder(pul, 5);
         display.setBorder(bored);
         display.setForeground(Color.WHITE);
         display.setBackground(blue);
 
         back = new JButton("Go Back");
-		back.setBounds(600,600,150,40);
-		back.addActionListener(this);
+        back.setBounds(600, 600, 150, 40);
+        back.addActionListener(this);
         back.setFont(font);
         back.setBorder(bored);
         back.setForeground(Color.WHITE);
@@ -79,103 +76,69 @@ public class Eligible extends JFrame implements ActionListener
         con.add(eligibleheading1);
         con.add(eligibleheading2);
         con.add(eligibleheading3);
-		con.add(output);
+        con.add(output);
         con.add(display);
         con.add(back);
-
     }
 
-    public void actionPerformed(ActionEvent ae) 
-    {
-        if(ae.getSource()==display)
-        {
-			try
-            {
-
-                System.out.println("Eligibilty Checked and Displayed");
-		        String name, cgpa1, nob1, r,b,e="";
-		        double cgpa, nob;
-		        
-                File temp = new File("temp.txt");
-				Boolean createNewFile1 = temp.createNewFile();
-                BufferedWriter pw = new BufferedWriter(new FileWriter(temp));
-
-                BufferedReader br = new BufferedReader(new FileReader("student.txt"));
-		        while((r = br.readLine()) != null )
-		        {
-		        	String[] result = r.split("\\|"); 
-		        	name=result[0];
-		        	cgpa1=result[4];
-		        	nob1=result[5];
-		        	cgpa = Double.parseDouble(cgpa1);
-		        	nob = Double.parseDouble(nob1);
-		        	if(cgpa!=999)
-		        	{
-		        		if(cgpa >= 8.0 && nob == 0)
-		        	    {
-                            b = name + " : " + "Candidate Eligible For Platinum,Gold, Silver Packages";
-                            e="Eligible companies: Google (24LPA), Amazon (19LPA), Adobe (11LPA), Flipkart (18LPA), Ebay (6LPA), Infosys (4LPA)";
-                            pw.write(b+"\n");
-                            pw.write(e+"\n\n");
-
-		        	    }
-		        	    else if(cgpa >= 7.0 && nob == 0)
-		        	    {
-		        	    	b = name + " : " + "Candidate Eligible For Gold and Silver Packages";
-                            e="Eligible companies: ANZ (11LPA), Capgemini (8LPA), Cognizant (6LPA), Wipro (4LPA)";
-                            pw.write(b+"\n");
-                            pw.write(e+"\n\n");
-		        	    }
-		        	    else if(cgpa >= 6.0)
-		        	    {
-		        	    	b = name + " : " + "Candidate Eligible For only Silver Package";
-                            e="Eligible companies: Cognizant (6LPA), Wipro (4LPA)";
-                            pw.write(b+"\n");
-                            pw.write(e+"\n\n");
-		        	    }
-		        	    else
-		        	    {
-		        	    	b = name + " : " + "Sorry!! Candidate Not Eligible";
-                            pw.write(b+"\n\n");
-		        	    }
-		        	}	
+    public void actionPerformed(ActionEvent ae) {
+        if (ae.getSource() == display) {
+            try {
+                String line;
+                StringBuilder sb = new StringBuilder();
+
+                BufferedReader br = new BufferedReader(new FileReader("student.csv"));
+                while ((line = br.readLine()) != null) {
+                    String[] parts = line.split(",");
+                    if (parts.length >= 7) {
+                        String name = parts[0];
+                        double cgpa = Double.parseDouble(parts[4]);
+                        double nob = Double.parseDouble(parts[5]);
+                        if (cgpa >= 8.0 && nob == 0) {
+                            sb.append(formatCompany(name, "Platinum",
+                                    "Google (24LPA), Amazon (19LPA), Adobe (11LPA), Flipkart (18LPA), Ebay (6LPA), Infosys (4LPA)"));
+                        } else if (cgpa >= 7.0 && nob == 0) {
+                            sb.append(formatCompany(name, "Gold",
+                                    "ANZ (11LPA), Capgemini (8LPA), Cognizant (6LPA), Wipro (4LPA)"));
+                        } else if (cgpa >= 6.0) {
+                            sb.append(formatCompany(name, "Silver", "Cognizant (6LPA), Wipro (4LPA)"));
+                        } else {
+                            sb.append(formatCompany(name, "Not Eligible", ""));
+                        }
+
+                    }
+
                 }
                 br.close();
-                pw.close();
-                File file = new File("temp.txt");
-                BufferedReader br1 = new BufferedReader(new FileReader(file));
-                output.read(br1,null);
-                br1.close(); 
-                output.requestFocus();
-                file.delete();  
-            }
-            catch(Exception e)
-            {
+
+                output.setText(sb.toString());
+            } catch (Exception e) {
                 e.printStackTrace();
             }
+
         }
 
-        if(ae.getSource()==back)
-        {
-            try
-            {
+        if (ae.getSource() == back) {
+            try {
                 this.dispose();
-                Home h=new Home();
-                h.setSize(2300,790);
+                Home h = new Home();
+                h.setSize(2300, 790);
                 h.setVisible(true);
-            }
-            catch(Exception e)
-            {
+            } catch (Exception e) {
                 e.printStackTrace();
             }
         }
     }
 
-    public static void main(String args[])
-    {
-        Eligible eli=new Eligible();
-		eli.setSize(2300,790);
-		eli.setVisible(true);
-    }   
+    private String formatCompany(String name, String packageName, String companies) {
+        return String.format("%-20s | %-20s | %-50s%n", "Name", "Package", "Eligible Companies") +
+                "------------------------------------------------------------------\n"
+                + String.format("%-20s | %-20s | %s%n", name, packageName, companies);
+    }
 
-}
\ No newline at end of file
+    public static void main(String args[]) {
+        Eligible eli = new Eligible();
+        eli.setSize(2300, 790);
+        eli.setVisible(true);
+    }
+}
diff --git a/Gautham_PMS_report.pdf b/Gautham_PMS_report.pdf
deleted file mode 100644
index cef777f..0000000
Binary files a/Gautham_PMS_report.pdf and /dev/null differ
diff --git a/Home.java b/Home.java
index 46482c4..57ada56 100644
--- a/Home.java
+++ b/Home.java
@@ -112,8 +112,6 @@ public class Home extends JFrame implements ActionListener
        	background = new JLabel("",img,JLabel.CENTER);
         background.setBounds(0,0,1200,850);
         add(background);
-        
-		
 		
 	}
 
diff --git a/Insert.java b/Insert.java
index 3b11160..71515c1 100644
--- a/Insert.java
+++ b/Insert.java
@@ -1,489 +1,243 @@
+import static javax.swing.JOptionPane.showMessageDialog;
+
 import java.awt.*;
 import javax.swing.*;
 import javax.swing.border.Border;
-
 import java.awt.event.*;
 import java.io.*;
 import java.util.*;
-import static javax.swing.JOptionPane.showMessageDialog;
 
-public class Insert extends JFrame implements ActionListener 
-{
-    private  JLabel insertHeading,nameL,usnL,semL,branchL,cgpaL,nobL,companyL,ctcL,commentsL;
-    private  JTextField nameT,usnT,cgpaT,nobT,ctcT,commentsT;
-	JComboBox companyT,branchT,semT;;
-    private  JButton insert,back;
-    String[] companies= {"Amazon","Flipcart","Ebay","SAP_LABS","Capgemini","Cognizant","Infosys","Wipro"};
-    String[] branches= {"CSE","ISE","EEE","ECE","MEC","TEC","AIML"};
-    String[] sems= {"01","02","03","04","05","06","07","08"};
-    //JComboBox combobox=new JComboBox(companies);
+public class Insert extends JFrame implements ActionListener {
+    private JLabel insertHeading, nameL, usnL, semL, branchL, cgpaL, nobL, companyL, commentsL;
+    private JTextField nameT, usnT, cgpaT, nobT, commentsT;
+    private JComboBox<String> companyT, branchT, semT;
+    private JButton insert, back;
+    private String[] companies = {"Google","Amazon", "Flipcart", "Ebay", "SAP_LABS", "Capgemini", "Cognizant", "Infosys", "Wipro"};
+    private String[] branches = {"CSE", "ISE", "EEE", "ECE", "MEC", "TEC", "AIML"};
+    private String[] sems = {"01", "02", "03", "04", "05", "06", "07", "08"};
 
-    Container con=null;
-    String name="", usn1="", sem="", branch="", cgpa="", nob="",company="",ctc="",comments="";
+    Container con = null;
 
-    Insert()
-    {
+    Insert() {
         super("Insert Record");
         con = getContentPane();
         con.setLayout(null);
-		Color  lightBlue = new Color(0,255,255);
+        Color lightBlue = new Color(0, 255, 255);
         con.setBackground(lightBlue);
 
-        con.setSize(300,300);
+        con.setSize(300, 300);
         con.setLayout(null);
         con.setVisible(true);
 
         insertHeading = new JLabel("INSERT STUDENT DETAILS");
-        insertHeading.setBounds(550,-50, 400,150);
+        insertHeading.setBounds(550, -50, 400, 150);
 
         con.add(insertHeading);
-        //con.add(combobox);
-		Color blue = new Color(30,144,255);
+        Color blue = new Color(30, 144, 255);
         Font font = new Font("Verdana", Font.BOLD, 16);
         insertHeading.setFont(font);
         insertHeading.setForeground(Color.BLACK);
 
-        nameL=new JLabel("Enter Name:");
-        nameL.setBounds(350,70,150,40);
+        nameL = new JLabel("Enter Name:");
+        nameL.setBounds(350, 70, 150, 40);
         nameL.setFont(font);
         nameL.setForeground(Color.BLACK);
-        nameT=new JTextField(200);
-		nameT.setBounds(725,70,250,30);
+        nameT = new JTextField(200);
+        nameT.setBounds(725, 70, 250, 30);
         nameT.setFont(font);
         nameT.setForeground(Color.BLACK);
 
-        usnL=new JLabel("Enter USN:");
-		usnL.setBounds(350,130,150,40);
+        usnL = new JLabel("Enter USN:");
+        usnL.setBounds(350, 130, 150, 40);
         usnL.setFont(font);
         usnL.setForeground(Color.BLACK);
-		usnT=new JTextField(200);
-		usnT.setBounds(725,130,250,30);
+        usnT = new JTextField(200);
+        usnT.setBounds(725, 130, 250, 30);
         usnT.setFont(font);
         usnT.setForeground(Color.BLACK);
-        
-        semL=new JLabel("Enter Semester:");
-		semL.setBounds(350,190,150,40);
+
+        semL = new JLabel("Enter Semester:");
+        semL.setBounds(350, 190, 150, 40);
         semL.setFont(font);
         semL.setForeground(Color.BLACK);
-		semT=new JComboBox(sems);
-		semT.setBounds(725,190,250,30);
+        semT = new JComboBox<>(sems);
+        semT.setBounds(725, 190, 250, 30);
         semT.setFont(font);
         semT.setForeground(Color.BLACK);
 
-        branchL=new JLabel("Enter Branch:");
-		branchL.setBounds(350,250,150,40);
+        branchL = new JLabel("Enter Branch:");
+        branchL.setBounds(350, 250, 150, 40);
         branchL.setFont(font);
         branchL.setForeground(Color.BLACK);
-        branchT=new JComboBox(branches);
-		branchT.setBounds(725,250,250,30);
+        branchT = new JComboBox<>(branches);
+        branchT.setBounds(725, 250, 250, 30);
         branchT.setFont(font);
         branchT.setForeground(Color.BLACK);
 
-        cgpaL=new JLabel("Enter CGPA:");
-		cgpaL.setBounds(350,310,150,40);
+        cgpaL = new JLabel("Enter CGPA:");
+        cgpaL.setBounds(350, 310, 150, 40);
         cgpaL.setFont(font);
         cgpaL.setForeground(Color.BLACK);
-		cgpaT=new JTextField(200);
-		cgpaT.setBounds(725,310,250,30);
+        cgpaT = new JTextField(200);
+        cgpaT.setBounds(725, 310, 250, 30);
         cgpaT.setFont(font);
         cgpaT.setForeground(Color.BLACK);
 
-        nobL=new JLabel("Enter Number of backlogs:");
-		nobL.setBounds(350,370,300,40);
+        nobL = new JLabel("Enter Number of backlogs:");
+        nobL.setBounds(350, 370, 300, 40);
         nobL.setFont(font);
         nobL.setForeground(Color.BLACK);
-		nobT=new JTextField(200);
-		nobT.setBounds(725,370,250,30);
+        nobT = new JTextField(200);
+        nobT.setBounds(725, 370, 250, 30);
         nobT.setFont(font);
         nobT.setForeground(Color.BLACK);
 
-		companyL=new JLabel("Enter Aspiring Company:");
-		companyL.setBounds(350,430,300,40);
+        companyL = new JLabel("Enter Aspiring Company:");
+        companyL.setBounds(350, 430, 300, 40);
         companyL.setFont(font);
         companyL.setForeground(Color.BLACK);
-		companyT=new JComboBox(companies);
-		companyT.setBounds(725,430,250,30);
+        companyT = new JComboBox<>(companies);
+        companyT.setBounds(725, 430, 250, 30);
         companyT.setFont(font);
         companyT.setForeground(Color.BLACK);
         companyT.addActionListener(this);
 
-		/*ctcL=new JLabel("Enter Aspiring CTC:");
-		ctcL.setBounds(350,490,300,40);
-        ctcL.setFont(font);
-        ctcL.setForeground(Color.BLACK);
-		ctcT=new JTextField(200);
-		ctcT.setBounds(725,490,250,30);
-        ctcT.setFont(font);
-        ctcT.setForeground(Color.BLACK);
-        ctcT.setText(ctc);*/
-
-		commentsL=new JLabel("Enter Comments:");
-		commentsL.setBounds(350,490,300,40);
+        commentsL = new JLabel("Enter Comments:");
+        commentsL.setBounds(350, 490, 300, 40);
         commentsL.setFont(font);
         commentsL.setForeground(Color.BLACK);
-		commentsT=new JTextField(200);
-		commentsT.setBounds(725,490,250,30);
+        commentsT = new JTextField(200);
+        commentsT.setBounds(725, 490, 250, 30);
         commentsT.setFont(font);
         commentsT.setForeground(Color.BLACK);
 
-        insert=new JButton("Insert");
-		insert.setBounds(400,550,150,40);
-		insert.addActionListener(this);
+        insert = new JButton("Insert");
+        insert.setBounds(400, 550, 150, 40);
+        insert.addActionListener(this);
         insert.setFont(font);
-        Color pul = new Color(0,0,255);
-        Border bored = BorderFactory.createLineBorder(pul,5);
+        Color pul = new Color(0, 0, 255);
+        Border bored = BorderFactory.createLineBorder(pul, 5);
         insert.setBorder(bored);
         insert.setForeground(Color.WHITE);
         insert.setBackground(blue);
 
-		back = new JButton("Go Back");
-		back.setBounds(750,550,150,40);
-		back.addActionListener(this);
+        back = new JButton("Go Back");
+        back.setBounds(750, 550, 150, 40);
+        back.addActionListener(this);
         back.setFont(font);
         back.setBorder(bored);
         back.setForeground(Color.WHITE);
         back.setBackground(blue);
 
         con.add(nameL);
-		con.add(nameT);
+        con.add(nameT);
         con.add(usnL);
-		con.add(usnT);
-		con.add(semL);
-		con.add(semT);
-		con.add(branchL);
-		con.add(branchT);
+        con.add(usnT);
+        con.add(semL);
+        con.add(semT);
+        con.add(branchL);
+        con.add(branchT);
         con.add(cgpaL);
-		con.add(cgpaT);
+        con.add(cgpaT);
         con.add(nobL);
-		con.add(nobT);
-		con.add(companyL);
-		con.add(companyT);
-		//con.add(ctcL);
-		//con.add(ctcT);
-		con.add(commentsL);
-		con.add(commentsT);
-		con.add(insert);
-		con.add(back);
+        con.add(nobT);
+        con.add(companyL);
+        con.add(companyT);
+        con.add(commentsL);
+        con.add(commentsT);
+        con.add(insert);
+        con.add(back);
     }
 
-    public void actionPerformed(ActionEvent ae) 
-    {
-        if(ae.getSource()==insert)
-        {
-			try
-			{
-				String p = "999" + "|" + "999" + "|" +"999" + "|" +"999" + "|" +"999" + "|" +"999" + "|"+"999" + "|"+"999" + "|"+"999" + "|" ;
-				File data = new File("student.txt");
-				File data1 = new File("journal.txt");
-				if(data.createNewFile() && data1.createNewFile())   
-				{
-					Boolean createNewFile = data.createNewFile();
-					Boolean createNewFile1 = data1.createNewFile();
-					// System.out.println("student "+createNewFile);
-					// System.out.println("journal "+createNewFile1);
-					BufferedWriter pw = new BufferedWriter(new FileWriter(data));
-					BufferedWriter pw1 = new BufferedWriter(new FileWriter(data1));
-					pw.write(p);
-					pw.write("\n");
-					pw.close();
-					pw1.write(p);
-					pw1.write("\n");
-					pw1.close();
-				}
-
-				String name = nameT.getText();
-           		String usn1 = usnT.getText();
-           		String sem = (String) semT.getSelectedItem();
-           		String branch = (String) branchT.getSelectedItem();
-           		String cgpa = cgpaT.getText();
-           		String nob = nobT.getText();
-				String company = (String) companyT.getSelectedItem();
-				String ctc = ctcofcompany(company);
-				//ctcT.setText(ctc);
-				String comments = commentsT.getText();
+    public void actionPerformed(ActionEvent ae) {
+        if (ae.getSource() == insert) {
+            try {
+                BufferedWriter bwStudent = new BufferedWriter(new FileWriter("student.csv", true));
+                BufferedWriter bwJournal = new BufferedWriter(new FileWriter("journal.csv", true));
 
-                int check=0,usn2=0,usn3=0;
-				String usn="",r,sort,sort1="";
-		        File file = new File("student.txt");
-		     	BufferedReader br=new BufferedReader(new FileReader(file));
-			    while((r= br.readLine()) !=null)
-		        {
-		        	String[] result = r.split("\\|");
-		        	usn=result[1];
-		        	if(usn.equals(usn1))
-		        	{	check=1;
-		        		showMessageDialog(null, "A record already exists with usn: "+result[1]);
-						break;
-		        	}
-		        }
-		        br.close();
-		        //if record already exists
-		         if(check==1)
-		         {
-					showMessageDialog(null, "Record Updated!");
-				 }
-		        	String b = usn1 + "|" + sem + "|"  + cgpa + "|" + nob + "|" + company + "|" +ctc + "|" + comments + "|";
-		        	int len = b.length();
-					File file2 = new File ("journal.txt");
-		        	BufferedReader br2 = new BufferedReader(new FileReader(file2));
-		        	usn3=Integer.parseInt(usn1);
-		        	//sorting before insertion
-					File temp1 = new File("temp.txt");
-					Boolean createNewFile1 = temp1.createNewFile();
-					BufferedWriter pw2 = new BufferedWriter(new FileWriter(temp1));
-		        	String result1[]={};
-					String sem1,cgpa1,nob1,company1,ctc1,comments1;
-		        	while((sort = br2.readLine()) != null)
-		        	{
-		        		result1 = sort.split("\\|");
-		        		usn2=Integer.parseInt(result1[0]);
-		        		sem1 = result1[1];   
-		        		cgpa1=result1[2];
-		        		nob1=result1[3];
-						company1=result1[4];
-						ctc1=result1[5];
-						comments1=result1[6];
-		        		sort1 = usn2 + "|" + sem1 + "|" + cgpa1 + "|" + nob1 + "|" + company1 + "|" +ctc1 + "|" + comments1 + "|";
-		        		if(usn3<usn2)
-		        		{
-		        			pw2.write(b);
-							pw2.write("\n");
-		        			break;                                            
-		        		}
-		        		else if(usn3 == usn2)        
-		        		{
-		        			pw2.write(sort1); 
-							pw2.write("\n");
-		        			pw2.write(b); 
-							pw2.write("\n");
-		        			break;
-		        		}
-		        		pw2.write(sort1); 
-						pw2.write("\n");
-		        	}    
-		        	if(sort!=null )
-		        	{
-		        		if(result1[0].equals("999"))
-		        		{
-		        			pw2.write(sort1);
-							pw2.write("\n");
-		        		}
-		        		else
-		        		{
-		        			if(usn3>usn2)
-		        			{
-		        				pw2.write(b);
-								pw2.write("\n");
-		        				pw2.write(p);  
-								pw2.write("\n");   
-		        			}
-		        			else if (usn3 == usn2)
-		        			{
-		        				while(!(result1[1].equals("999")))
-		        				{
-		        					sort = br2.readLine();
-		        					result1 = sort.split("\\|");
-		        					usn2=Integer.parseInt(result1[0]);
-		        					sem1 = result1[1];
-		        					cgpa1=result1[2];
-		        					nob1=result1[3];
-									company1=result1[4];
-									ctc1=result1[5];
-									comments1=result1[6];
-		        					sort1 = usn2 + "|" + sem1 + "|" + cgpa1 + "|" + nob1 + "|" + company + "|" +ctc + "|" + comments + "|";
-		        					pw2.write(sort1);
-									pw2.write("\n");
-		        				}
-		        			}
-		        			else
-		        			{
-		        				while(!result1[1].equals("999"))
-		        				{
-		        					pw2.write(sort1);
-									pw2.write("\n");
-		        					sort = br2.readLine();
-		        					result1 = sort.split("\\|");
-		        					usn2=Integer.parseInt(result1[0]);
-		        					sem1 = result1[1];
-		        					cgpa1=result1[2];
-		        					nob1=result1[3];
-									company1=result1[4];
-									ctc1=result1[5];
-									comments1=result1[6];
-		        					sort1 = usn2 + "|" + sem1 + "|" + cgpa1 + "|" + nob1 + "|" + company + "|" +ctc + "|" + comments + "|";
-		        				}
-		        			}
-		        			pw2.write(p);
-							pw2.write("\n");
-		        		}
-		        	}
-		        	pw2.flush();   
-		        	pw2.close();
-		        	br2.close();
-		        	file2.delete();
-		        	temp1.renameTo(file2);
-					modify(name,usn1,sem,branch,cgpa,nob,company,ctc,comments);
-		        //}
-		        //if record does not exist
-		        if(check == 0)
-		        {
-		        	File file1 = new File("student.txt");
-		        	BufferedReader br1 = new BufferedReader(new FileReader(file1));
-		        	b = name + "|" + usn1 + "|" + sem + "|" + branch + "|" + cgpa + "|" + nob + "|" + company + "|" +ctc + "|" + comments + "|";
-		        	len = b.length();
-		        	usn3=Integer.parseInt(usn1);
+                String studentData = getStudentDataString();
+                String journalData = getJournalDataString();
 
-		        	//sorting before insertion
-					File temp = new File("temp.txt");
-					Boolean createNewFile = temp.createNewFile();
-					BufferedWriter pw1 = new BufferedWriter(new FileWriter(temp));
-		        	String result[]={};
-		        	while((sort = br1.readLine()) != null)
-		        	{
-		        		result = sort.split("\\|");
-		        		usn2=Integer.parseInt(result[1]);
-		        		if(usn3<usn2)
-		        		{
-		        			pw1.write(b);
-							pw1.write("\n");
-		        			break;
-		        		}
-		        		pw1.write(sort); 
-						pw1.write("\n");
-		        	}    
+                bwStudent.write(studentData);
+                bwStudent.newLine();
+                bwStudent.close();
 
-		        	if(sort!=null )
-		        	{
-		        		if(result[1].equals("999"))
-		        		{
-		        			pw1.write(sort);
-							pw1.write("\n");
-		        		}
-		        		else
-		        		{ 
-		        			while(!result[1].equals("999"))
-		        			{
-		        				pw1.write(sort);
-								pw1.write("\n");
-		        				sort = br1.readLine();
-		        				result = sort.split("\\|");
-		        			}
-		        			pw1.write(p);
-							pw1.write("\n");
-		        		}
-		        	}
-					showMessageDialog(null, "Record Added!");
-		        	pw1.flush();   
-		        	pw1.close();
-		        	br1.close();
+                bwJournal.write(journalData);
+                bwJournal.newLine();
+                bwJournal.close();
 
-		        	file1.delete();
-		        	temp.renameTo(file1);
-                }
-
-				this.dispose();
-				Home h=new Home();
-				h.setSize(2300,790);
-				h.setVisible(true);
-
-           }
-           catch(Exception e)
-           {
-               e.printStackTrace();
-           }       		
-    	}
+                showMessageDialog(null, "Record Added!");
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
 
-		 if(ae.getSource()==back)
-        {
-            try
-            {
+        if (ae.getSource() == back) {
+            try {
                 this.dispose();
-                Home h=new Home();
-                h.setSize(2300,790);
+                Home h = new Home();
+                h.setSize(2300, 790);
                 h.setVisible(true);
-            }
-            catch(Exception e)
-            {
+            } catch (Exception e) {
                 e.printStackTrace();
             }
-		}
-    }   
-
-
-    private String ctcofcompany(String company2) {
-    	
-    	if(company2=="Amazon") {
-    		return "24,00,000";
-    	}
-    	else if(company2=="Flipcart") {
-    		return "19,00,000";
-    	}
-    	else if(company2=="Ebay") {
-    		return "15,00,000";
-    	}
-    	else if(company2=="SAP_LABS") {
-    		return "18,00,000";
-    	}
-    	else if(company2=="Capgemini") {
-    		return "7,00,000";
-    	}
-    	else if(company2=="Cognizant") {
-    		return "6,00,000";
-    	}
-    	else if(company2=="Infosys") {
-    		return "5,00,000";
-    	}
-    	else if(company2=="Wipro") {
-    		return "4,00,000";
-    	}
-		return null;
-	}
-
-	public void modify(String name0, String usn0,String sem0,String branch0, String cgpa0,String nob0, String company0, String ctc0, String comments0) throws FileNotFoundException,IOException,NullPointerException
-	{	
-		String usn="",r;
-
-		File file = new File("student.txt");
-		BufferedReader br = new BufferedReader(new FileReader(file));
-
-		File temp = new File("temp.txt");
-		Boolean createNewFile = temp.createNewFile();
-		BufferedWriter pw = new BufferedWriter(new FileWriter(temp));
-
-		while((r= br.readLine()) !=null)
-		{	
-			String[] result = r.split("\\|");
-			usn=result[1];
+        }
+    }
 
-			if(usn.equals(usn0))
-			{
-				String b = name0+"|"+usn0+"|"+sem0+"|"+branch0+"|"+cgpa0+"|"+nob0+"|"+company0+"|"+ctc0+"|"+comments0+"|";
-				int len = b.length();
-				pw.write(b);
-				pw.write("\n");
-			}
-			else
-			{
-				pw.write(r);
-				pw.write("\n");
-			}
-		}
-		pw.flush();
-		pw.close();
-		br.close();	
+    private String getStudentDataString() {
+        String name = nameT.getText();
+        String usn = usnT.getText();
+        String sem = (String) semT.getSelectedItem();
+        String branch = (String) branchT.getSelectedItem();
+        String cgpa = cgpaT.getText();
+        String nob = nobT.getText();
+        String company = (String) companyT.getSelectedItem();
+		String ctc = getCtcOfCompany(company);
+        String comments = commentsT.getText();
+
+        return String.join(",", name, usn, sem, branch, cgpa, nob, company, ctc, comments);
+    }
 
-		file.delete();
-		temp.renameTo(file);
-	}
+    private String getJournalDataString() {
+        String usn = usnT.getText();
+        String sem = (String) semT.getSelectedItem();
+        String cgpa = cgpaT.getText();
+        String nob = nobT.getText();
+        String company = (String) companyT.getSelectedItem();
+        String ctc = getCtcOfCompany(company);
+        String comments = commentsT.getText();
 
+        return String.join(",", usn, sem, cgpa, nob, company, ctc, comments);
+    }
 
+    private String getCtcOfCompany(String company) {
+        switch (company) {
+            case "Google":
+                return "2400000";
+            case "Amazon":
+                return "2400000";
+            case "Flipcart":
+                return "1900000";
+            case "Ebay":
+                return "1500000";
+            case "SAP_LABS":
+                return "1800000";
+            case "Capgemini":
+                return "700000";
+            case "Cognizant":
+                return "600000";
+            case "Infosys":
+                return "500000";
+            case "Wipro":
+                return "400000";
+            default:
+                return "0";
+        }
+    }
 
-    public static void main(String args[])
-    {
+    public static void main(String args[]) {
         Insert in = new Insert();
-        in.setSize(2300,790);
+        in.setSize(2300, 790);
         in.setVisible(true);
-    }   
-}   
-
-
+    }
+}
diff --git a/Ledger.java b/Ledger.java
index 1b45751..feebcdf 100644
--- a/Ledger.java
+++ b/Ledger.java
@@ -1,64 +1,59 @@
 import java.awt.*;
 import javax.swing.*;
 import javax.swing.border.Border;
-
 import java.awt.event.*;
 import java.io.*;
 import java.util.*;
-import static javax.swing.JOptionPane.showMessageDialog;
 
-public class Ledger extends JFrame implements ActionListener
-{
-    
+public class Ledger extends JFrame implements ActionListener {
+
     private JLabel ledgerheading;
     private JTextArea output;
-    private JButton display,back;
+    private JButton display, back;
     public BufferedReader stud;
-    public BufferedReader jour; 
+    public BufferedReader jour;
     public BufferedWriter pw;
     public File temp;
-    Container con=null;
+    Container con = null;
 
-    Ledger()
-    {
+    Ledger() {
 
         super("Ledger Record");
         con = getContentPane();
         con.setLayout(new FlowLayout());
-        Color  lightBlue = new Color(0,255,255);
+        Color lightBlue = new Color(0, 255, 255);
         con.setBackground(lightBlue);
 
-        con.setSize(300,300);
+        con.setSize(600, 300);
         con.setLayout(null);
         con.setVisible(true);
 
         Font font = new Font("Verdana", Font.BOLD, 16);
-        Color blue = new Color(30,144,255);
-        ledgerheading=new JLabel("The record history:");
-        ledgerheading.setBounds(200, 2, 700,150);
+        Color blue = new Color(30, 144, 255);
+        ledgerheading = new JLabel("The record history:");
+        ledgerheading.setBounds(200, 2, 700, 150);
         ledgerheading.setFont(font);
         ledgerheading.setForeground(Color.BLACK);
 
-        output=new JTextArea();
-        output.setBounds(20, 150, 1200,400);
+        output = new JTextArea();
+        output.setBounds(20, 150, 1300, 400);
         output.setFont(font);
         output.setForeground(Color.BLACK);
         output.setEditable(false);
-    
 
         display = new JButton("Display");
-		display.setBounds(400,600,150,40);
-		display.addActionListener(this);
+        display.setBounds(400, 600, 150, 40);
+        display.addActionListener(this);
         display.setFont(font);
-        Color pul = new Color(0,0,255);
-        Border bored = BorderFactory.createLineBorder(pul,5);
+        Color pul = new Color(0, 0, 255);
+        Border bored = BorderFactory.createLineBorder(pul, 5);
         display.setBorder(bored);
         display.setForeground(Color.WHITE);
         display.setBackground(blue);
 
         back = new JButton("Go Back");
-		back.setBounds(600,600,150,40);
-		back.addActionListener(this);
+        back.setBounds(600, 600, 150, 40);
+        back.addActionListener(this);
         back.setFont(font);
         back.setBorder(bored);
         back.setForeground(Color.WHITE);
@@ -66,168 +61,51 @@ public class Ledger extends JFrame implements ActionListener
 
         con.add(ledgerheading);
         con.add(output);
-		//con.add(scroll);
         con.add(display);
         con.add(back);
 
     }
 
-    public void actionPerformed(ActionEvent ae) 
-    {
-        if(ae.getSource()==display)
-        {
-			try
-            {
-                String b;
-                int initial=0;
-                stud = new BufferedReader(new FileReader("student.txt"));
-				jour = new BufferedReader(new FileReader("journal.txt"));
-				ledger(stud.readLine(),jour.readLine(),initial);
-                stud.close();
-                jour.close();  
-            }
-            catch(Exception e)
-            {
+    public void actionPerformed(ActionEvent ae) {
+        if (ae.getSource() == display) {
+            try {
+                displayRecordsFromCSV("student.csv", "journal.csv");
+            } catch (Exception e) {
                 e.printStackTrace();
             }
         }
 
-        if(ae.getSource()==back)
-        {
-            try
-            {
+        if (ae.getSource() == back) {
+            try {
                 this.dispose();
-                Home h=new Home();
-                h.setSize(2300,790);
+                Home h = new Home();
+                h.setSize(2600, 790);
                 h.setVisible(true);
-            }
-            catch(Exception e)
-            {
+            } catch (Exception e) {
                 e.printStackTrace();
             }
         }
     }
-    public void ledger (String s1, String s2,int initial) throws FileNotFoundException, IOException
-	{
-        String b;
-        if(initial == 0)
-        {
-            temp = new File("temp.txt");
-            Boolean createNewFile = temp.createNewFile();
-            pw = new BufferedWriter(new FileWriter(temp));
-            b = "NAME\t|USN\t|SEM\t|BRANCH\t|CGPA\t|NOB\t|COMPANY\t|CTC\t|COMMENTS";
-            pw.write(b); 
-            pw.write("\n");
-            initial=1;
+
+    public void displayRecordsFromCSV(String studentFile, String journalFile) throws IOException {
+        StringBuilder displayText = new StringBuilder();
+        displayText.append("Student Records:\n");
+        displayText.append("NAME\t|USN\t|SEM\t|BRANCH\t|CGPA\t|NOB\t|COMPANY\t|CTC\t|COMMENTS\n");
+        displayText.append("--------------------------------------------------------------------------------------------------------------------------------\n");
+
+        BufferedReader br = new BufferedReader(new FileReader(studentFile));
+        String line;
+        while ((line = br.readLine()) != null) {
+            displayText.append(line.replace(",", "\t"));
+            displayText.append("\n");
         }
+        br.close();
+        output.setText(displayText.toString());
+    }
 
-		//consequential matching and merging
-		String[] ss = s1.split("\\|"); 
-		String name_s=ss[0];
-        String usn_s=ss[1];
-		String sem_s= ss[2];
-		String branch_s=ss[3];
-		String cgpa_s=ss[4];
-		String nob_s=ss[5];
-        String company_s=ss[6];
-        String ctc_s=ss[7];
-        String comments_s=ss[8];
-
-		String[] jj = s2.split("\\|"); 
-        String usn_j=jj[0];
-		String sem_j= jj[1];
-		String cgpa_j=jj[2];
-		String nob_j=jj[3];
-        String company_j=jj[4];
-        String ctc_j=jj[5];
-        String comments_j=jj[6];
-		int item1=0,item2=0;
-
-		item1=Integer.parseInt(usn_s);
-		item2=Integer.parseInt(usn_j);
-		if(ss[1].equals("999") && jj[0].equals("999")) //ss=null && jj=null
-		{
-            pw.close();
-            File file1= new File("temp.txt");
-            BufferedReader br1 = new BufferedReader(new FileReader(file1));
-            output.read(br1, null);
-            br1.close();
-            output.requestFocus(); 
-            return;       
-        }	
-		else if(!ss[0].equals("999") && !jj[0].equals("999")) //ss!=null && jj!=null
-		{
-			if (item1 == item2)
-			{
-				b=name_s + "\t" + usn_s + "\t" + sem_j + "\t" + branch_s + "\t" + cgpa_j + "\t" + nob_j + "\t" + company_j + "\t" + ctc_j +"\t" + comments_j;
-                pw.write(b);
-                pw.write("\n");
-                ledger(s1,jour.readLine(),initial);
-			}                                                        
-                                                            
-			else if(item1 < item2)
-			{
-				b="END OF RECORD";
-                pw.write(b);
-                pw.write("\n");
-                ledger(stud.readLine(),s2,initial);
-			}
-			else
-			 {
-                pw.write("Invalid Record Entry\n");
-                ledger(s1,jour.readLine(),initial);
-			 }
-		}
-		else //ss==null || jj==null
-		{
-			 if(jj[0].equals("999"))      
-			{ 
-				s1=stud.readLine();
-				ss = s1.split("\\|"); 
-				name_s=ss[0];
-                usn_s=ss[1];
-				sem_s= ss[2];
-				branch_s=ss[3];
-				cgpa_s=ss[4];                   
-				nob_s=ss[5];
-                company_s=ss[6];
-                ctc_s=ss[7];
-                comments_s=ss[8];
-				while(!ss[0].equals("999"))
-				{
-					b=name_s + "\t" + usn_s + "\t" + sem_s + "\t" + branch_s + "\t" + cgpa_s + "\t" + nob_s +"\t" + company_s + "\t" + ctc_s +"\t" + comments_s;
-                    pw.write(b);
-                    pw.write("\n");
-                    s1=stud.readLine();
-					ss = s1.split("\\|"); 
-					name_s=ss[0];
-                    usn_s=ss[1];
-					sem_s= ss[2];
-					branch_s=ss[3];
-					cgpa_s=ss[4];
-					nob_s=ss[5];
-                    company_s=ss[6];
-                    ctc_s=ss[7];
-                    comments_s=ss[8];
-
-					
-				}
-                pw.write("END OF RECORD\n");
-				ledger(s1,s2,initial); 
-			} 
-          
-		}
-	}	
-
-    public static void main(String args[])
-    {
-        Ledger led=new Ledger();
-		led.setSize(2300,790);
-		led.setVisible(true);
-    }   
-
-
-
-
-    
+    public static void main(String args[]) {
+        Ledger led = new Ledger();
+        led.setSize(2300, 790);
+        led.setVisible(true);
+    }
 }
diff --git a/README.md b/README.md
index 5a6b22f..06da4b1 100644
--- a/README.md
+++ b/README.md
@@ -43,11 +43,6 @@ their USN, or set of records by each branch, or by the company name.
 
 ---
 
-Go through Gautham_PMS_report.pdf to understand more
-It has complete information regarding the project and its Implementation
-
----
-
 # SCHEMA DIAGRAM
 
 ![diag](https://user-images.githubusercontent.com/85282195/181412024-2d45244f-4079-470b-bfc9-c0663e0c5a48.PNG)
diff --git a/Search.java b/Search.java
index 8cb8be0..7150a34 100644
--- a/Search.java
+++ b/Search.java
@@ -7,145 +7,122 @@
 import java.util.*;
 import static javax.swing.JOptionPane.showMessageDialog;
 
-public class Search extends JFrame implements ActionListener
-{
-    
+public class Search extends JFrame implements ActionListener {
+
     private JLabel usnL;
-    private JTextField usnT; 
+    private JTextField usnT;
     private JTextArea output;
-    private JButton search,back;
-    
-    Container con=null;
-    String usn="";
+    private JButton search, back;
+
+    Container con = null;
 
-    Search()
-    {
+    Search() {
         super("Search Record");
         con = getContentPane();
         con.setLayout(null);
-        Color  lightBlue = new Color(0,255,255);
+        Color lightBlue = new Color(0, 255, 255);
         con.setBackground(lightBlue);
 
-        con.setSize(300,300);
+        con.setSize(300, 300);
         con.setLayout(null);
         con.setVisible(true);
 
         Font font = new Font("Verdana", Font.BOLD, 16);
-        Color blue = new Color(30,144,255);
-        usnL=new JLabel("Enter usn of record to be searched");
-        usnL.setBounds(400, 50, 700,150);
+        Color blue = new Color(30, 144, 255);
+
+        usnL = new JLabel("Enter USN of record to be searched");
+        usnL.setBounds(400, 50, 700, 150);
         usnL.setFont(font);
         usnL.setForeground(Color.BLACK);
-        
-        usnT=new JTextField(200);
-		usnT.setBounds(725,100,250,50);
+
+        usnT = new JTextField(200);
+        usnT.setBounds(725, 100, 250, 50);
         usnT.setFont(font);
         usnT.setForeground(Color.BLACK);
 
-        output=new JTextArea();
-        output.setBounds(20,200,1200,100);
+        output = new JTextArea();
+        output.setBounds(20, 200, 1300, 100);
         output.setFont(font);
         output.setForeground(Color.BLACK);
         output.setEditable(false);
 
         search = new JButton("Search");
-		search.setBounds(400,600,150,40);
-		search.addActionListener(this);
+        search.setBounds(400, 600, 150, 40);
+        search.addActionListener(this);
         search.setFont(font);
-        Color pul = new Color(0,0,255);
-        Border bored = BorderFactory.createLineBorder(pul,5);
+        Color pul = new Color(0, 0, 255);
+        Border bored = BorderFactory.createLineBorder(pul, 5);
         search.setBorder(bored);
         search.setForeground(Color.WHITE);
         search.setBackground(blue);
 
         back = new JButton("Go Back");
-		back.setBounds(600,600,150,40);
-		back.addActionListener(this);
+        back.setBounds(600, 600, 150, 40);
+        back.addActionListener(this);
         back.setFont(font);
         back.setBorder(bored);
         back.setForeground(Color.WHITE);
         back.setBackground(blue);
 
         con.add(usnL);
-		con.add(usnT);
+        con.add(usnT);
         con.add(output);
         con.add(search);
         con.add(back);
     }
 
-    public void actionPerformed(ActionEvent ae) 
-    {
-        if(ae.getSource()==search)
-        {
+    public void actionPerformed(ActionEvent ae) {
+        if (ae.getSource() == search) {
             String usn = usnT.getText();
-			try
-            {
-                String name = "", usn1 ="", sem = "", branch = "", cgpa= "", nob="", company="",ctc="",comments="", r;
-                BufferedReader br = new BufferedReader(new FileReader("student.txt"));
-		        while((r= br.readLine()) !=null)
-		        {
-		        	String[] result = r.split("\\|");
-		        	name=result[0];
-		        	usn1=result[1];
-		        	sem= result[2];
-		        	branch=result[3];
-		        	cgpa=result[4];
-		        	nob=result[5];
-                    company=result[6];
-                    ctc=result[7];
-                    comments=result[8];
-		        	if(usn1.equals(usn))
-		        	{
-                        File temp = new File("temp.txt");
-					    Boolean createNewFile1 = temp.createNewFile();
-					    BufferedWriter pw = new BufferedWriter(new FileWriter(temp));
-                        String b = "NAME\t|USN\t|SEM\t|BRANCH\t|CGPA\t|NOB\t|COMPANY\t|CTC\t|COMMENTS";
-                        String bb = name  + "\t|" + usn1 + "\t|" + sem + "\t|" + branch + "\t|" + cgpa + "\t|" + nob + "\t|" + company + "\t|" + ctc + "\t|" + comments;
-                        pw.write(b);
-                        pw.write("\n");
-                        pw.write(bb);
-                        pw.write("\n");
-                        pw.close();
-                        br.close();
-                        File file = new File("temp.txt");
-                        BufferedReader br1 = new BufferedReader(new FileReader(file));
-                        output.read(br1,null);
-                        br1.close();  
-                        output.requestFocus();
-                        file.delete();
-		        		return ;
-		        	}
-		        }
-		        showMessageDialog(null , "Record not found");
-		        br.close();
-            }
-            catch(Exception e)
-            {
+            try {
+                searchRecordInCSV("student.csv", usn);
+            } catch (IOException e) {
                 e.printStackTrace();
             }
         }
 
-        if(ae.getSource()==back)
-        {
-            try
-            {
+        if (ae.getSource() == back) {
+            try {
                 this.dispose();
-                Home h=new Home();
-                h.setSize(2300,790);
+                Home h = new Home();
+                h.setSize(2300, 790);
                 h.setVisible(true);
-            }
-            catch(Exception e)
-            {
+            } catch (Exception e) {
                 e.printStackTrace();
             }
         }
     }
 
-    public static void main(String args[])
-    {
-        Search ser=new Search();
-		ser.setSize(2300,790);
-		ser.setVisible(true);
+    private void searchRecordInCSV(String filename, String usn) throws IOException {
+        StringBuilder recordText = new StringBuilder();
+
+        try (BufferedReader br = new BufferedReader(new FileReader(filename))) {
+            String line;
+            boolean recordFound = false;
+            while ((line = br.readLine()) != null) {
+                String[] parts = line.split(",");
+                if (parts.length >= 2 && parts[1].equals(usn)) {
+                    recordText.append("Student Records:\n");
+                    recordText.append("NAME\t|USN\t|SEM\t|BRANCH\t|CGPA\t|NOB\t|COMPANY\t|CTC\t|COMMENTS\n");
+                    recordText.append(
+                            "--------------------------------------------------------------------------------------------------------------------------------\n");
+                    recordText.append(line.replace(",", "\t"));
+                    recordText.append("\n");
+                    recordFound = true;
+                }
+            }
+
+            if (!recordFound) {
+                showMessageDialog(null, "Record not found");
+            }
+        }
+
+        output.setText(recordText.toString());
     }
-}
 
+    public static void main(String args[]) {
+        Search ser = new Search();
+        ser.setSize(2300, 790);
+        ser.setVisible(true);
+    }
+}
diff --git a/SearchByBranch.java b/SearchByBranch.java
index 296b01e..5dd0c81 100644
--- a/SearchByBranch.java
+++ b/SearchByBranch.java
@@ -11,13 +11,12 @@ public class SearchByBranch extends JFrame implements ActionListener
 {
     
     private JLabel branchL;
-    private JComboBox branchT; 
+    private JComboBox<String> branchT; 
     private JTextArea output;
     private JButton search,back;
     
     Container con=null;
-    String usn="";
-    String[] branches= {"CSE","ISE","EEE","ECE","MEC","TEC","AIML"};
+    String[] branches= {"CSE","IT","EEE","ECE","MEC","AIML"};
     
     SearchByBranch()
     {
@@ -33,18 +32,18 @@ public class SearchByBranch extends JFrame implements ActionListener
 
         Font font = new Font("Verdana", Font.BOLD, 16);
         Color blue = new Color(30,144,255);
-        branchL=new JLabel("Enter Branch of record to be searched");
+        branchL=new JLabel("Select Branch to search for records:");
         branchL.setBounds(300, 50, 700,150);
         branchL.setFont(font);
         branchL.setForeground(Color.BLACK);
         
-        branchT=new JComboBox(branches);
+        branchT=new JComboBox<>(branches);
 		branchT.setBounds(725,100,250,50);
         branchT.setFont(font);
         branchT.setForeground(Color.BLACK);
 
         output=new JTextArea();
-        output.setBounds(20,200,1200,350);
+        output.setBounds(20,200,1300,350);
         output.setFont(font);
         output.setForeground(Color.BLACK);
         output.setEditable(false);
@@ -78,47 +77,10 @@ public void actionPerformed(ActionEvent ae)
     {
         if(ae.getSource()==search)
         {
-            String branch1 = (String) branchT.getSelectedItem();
+            String branch = (String) branchT.getSelectedItem();
 			try
             {
-				String name = "", usn ="", sem = "", branch = "", cgpa= "", nob="", company="",ctc="",comments="", r;
-
-                File temp = new File("temp.txt");
-				Boolean createNewFile1 = temp.createNewFile();
-                BufferedWriter pw = new BufferedWriter(new FileWriter("temp.txt"));
-                String b = "NAME\t|USN\t|SEM\t|BRANCH\t|CGPA\t|NOB\t|COMPANY\t|CTC\t|COMMENTS";
-                pw.write(b); 
-                pw.write("\n");
-
-                BufferedReader br = new BufferedReader(new FileReader("student.txt"));
-                while((r= br.readLine()) !=null)
-		        {
-		        	String[] result = r.split("\\|");
-		        	name=result[0];
-		        	usn=result[1];
-		        	sem= result[2];
-		        	branch=result[3];
-		        	cgpa=result[4];
-		        	nob=result[5];
-                    company=result[6];
-                    ctc=result[7];
-                    comments=result[8];
-                    if(name.equals("999"))
-                        break;
-                    if(branch.equals(branch1)) {
-                    String bb = name  + "\t|" + usn + "\t|" + sem + "\t|" + branch + "\t|" + cgpa + "\t|" + nob + "\t|" + company + "\t|" + ctc + "\t|" + comments;
-                    pw.write(bb);
-                    pw.write("\n");
-                    }
-		        }
-                br.close();
-                pw.close();
-                File file = new File("temp.txt");
-                BufferedReader br1 = new BufferedReader(new FileReader(file));
-                output.read(br1,null);
-                br1.close(); 
-                output.requestFocus();
-                file.delete();
+                searchRecordInCSV("student.csv", branch);
             }
             catch(Exception e)
             {
@@ -142,11 +104,37 @@ public void actionPerformed(ActionEvent ae)
         }
     }
 
+    private void searchRecordInCSV(String filename, String branch) throws IOException {
+        StringBuilder recordText = new StringBuilder();
+        boolean recordFound = false;
+
+        try (BufferedReader br = new BufferedReader(new FileReader(filename))) {
+            String line;
+            while ((line = br.readLine()) != null) {
+                String[] parts = line.split(",");
+                if (parts.length >= 4 && parts[3].equalsIgnoreCase(branch)) {
+                    recordText.append("Student By Branch Records:\n");
+                    recordText.append("NAME\t|USN\t|SEM\t|BRANCH\t|CGPA\t|NOB\t|COMPANY\t|CTC\t|COMMENTS\n");
+                    recordText.append(
+                            "--------------------------------------------------------------------------------------------------------------------------------\n");
+                    recordText.append(line.replace(",", "\t"));
+                    recordText.append("\n");
+                    recordFound = true;
+                }
+            }
+        }
+
+        if (!recordFound) {
+            showMessageDialog(null, "No records found for the selected branch.");
+        }
+
+        output.setText(recordText.toString());
+    }
+
     public static void main(String args[])
     {
-        Search1 ser=new Search1();
+        SearchByBranch ser=new SearchByBranch();
 		ser.setSize(2300,790);
 		ser.setVisible(true);
     }
 }
-
diff --git a/SearchByCompany.java b/SearchByCompany.java
index 76258a3..8f053d9 100644
--- a/SearchByCompany.java
+++ b/SearchByCompany.java
@@ -7,147 +7,123 @@
 import java.util.*;
 import static javax.swing.JOptionPane.showMessageDialog;
 
-public class SearchByCompany extends JFrame implements ActionListener
-{
+public class SearchByCompany extends JFrame implements ActionListener {
     
     private JLabel companyL;
-    private JComboBox companyT; 
+    private JComboBox<String> companyT; 
     private JTextArea output;
-    private JButton search,back;
+    private JButton search, back;
     
     Container con=null;
-    String usn="";
-    String[] companies= {"Amazon","Flipcart","Ebay","SAP_LABS","Capgemini","Cognizant","Infosys","Wipro"};
+    String[] companies= {"Google", "Amazon","Flipkart","Ebay","SAP_LABS","Capgemini","Cognizant","Infosys","Wipro"};
     
-    SearchByCompany()
-    {
-        super("\"Search By Company");
+    SearchByCompany() {
+        super("Search By Company");
         con = getContentPane();
         con.setLayout(null);
-        Color  lightBlue = new Color(0,255,255);
+        Color lightBlue = new Color(0, 255, 255);
         con.setBackground(lightBlue);
 
-        con.setSize(300,300);
+        con.setSize(300, 300);
         con.setLayout(null);
         con.setVisible(true);
 
         Font font = new Font("Verdana", Font.BOLD, 16);
-        Color blue = new Color(30,144,255);
-        companyL=new JLabel("Enter Company of record to be searched");
-        companyL.setBounds(300, 50, 700,150);
+        Color blue = new Color(30, 144, 255);
+        
+        companyL = new JLabel("Select Company to search for records:");
+        companyL.setBounds(300, 50, 700, 150);
         companyL.setFont(font);
         companyL.setForeground(Color.BLACK);
         
-        companyT=new JComboBox(companies);
-		companyT.setBounds(725,100,250,50);
+        companyT = new JComboBox<>(companies);
+        companyT.setBounds(725, 100, 250, 50);
         companyT.setFont(font);
         companyT.setForeground(Color.BLACK);
 
-        output=new JTextArea();
-        output.setBounds(20,200,1200,350);
+        output = new JTextArea();
+        output.setBounds(20, 200, 1300, 350);
         output.setFont(font);
         output.setForeground(Color.BLACK);
         output.setEditable(false);
        
         search = new JButton("Search");
-		search.setBounds(400,600,150,40);
-		search.addActionListener(this);
+        search.setBounds(400, 600, 150, 40);
+        search.addActionListener(this);
         search.setFont(font);
-        Color pul = new Color(0,0,255);
-        Border bored = BorderFactory.createLineBorder(pul,5);
+        Color pul = new Color(0, 0, 255);
+        Border bored = BorderFactory.createLineBorder(pul, 5);
         search.setBorder(bored);
         search.setForeground(Color.WHITE);
         search.setBackground(blue);
 
         back = new JButton("Go Back");
-		back.setBounds(600,600,150,40);
-		back.addActionListener(this);
+        back.setBounds(600, 600, 150, 40);
+        back.addActionListener(this);
         back.setFont(font);
         back.setBorder(bored);
         back.setForeground(Color.WHITE);
         back.setBackground(blue);
 
         con.add(companyL);
-		con.add(companyT);
+        con.add(companyT);
         con.add(output);
         con.add(search);
         con.add(back);
     }
 
-    public void actionPerformed(ActionEvent ae) 
-    {
-        if(ae.getSource()==search)
-        {
-        	String company1 = (String) companyT.getSelectedItem();
-            //String company1 = companyT.getText();
-			try
-            {
-				String name = "", usn ="", sem = "", branch = "", cgpa= "", nob="", company="",ctc="",comments="", r;
-
-                File temp = new File("temp.txt");
-				Boolean createNewFile1 = temp.createNewFile();
-                BufferedWriter pw = new BufferedWriter(new FileWriter("temp.txt"));
-                String b = "NAME\t|USN\t|SEM\t|BRANCH\t|CGPA\t|NOB\t|COMPANY\t|CTC\t|COMMENTS";
-                pw.write(b); 
-                pw.write("\n");
-
-                BufferedReader br = new BufferedReader(new FileReader("student.txt"));
-                while((r= br.readLine()) !=null)
-		        {
-		        	String[] result = r.split("\\|");
-		        	name=result[0];
-		        	usn=result[1];
-		        	sem= result[2];
-		        	branch=result[3];
-		        	cgpa=result[4];
-		        	nob=result[5];
-                    company=result[6];
-                    ctc=result[7];
-                    comments=result[8];
-                    if(name.equals("999"))
-                        break;
-                    if(company.equals(company1)) {
-                    String bb = name  + "\t|" + usn + "\t|" + sem + "\t|" + branch + "\t|" + cgpa + "\t|" + nob + "\t|" + company + "\t|" + ctc + "\t|" + comments;
-                    pw.write(bb);
-                    pw.write("\n");
-                    }
-		        }
-                br.close();
-                pw.close();
-                File file = new File("temp.txt");
-                BufferedReader br1 = new BufferedReader(new FileReader(file));
-                output.read(br1,null);
-                br1.close(); 
-                output.requestFocus();
-                file.delete(); 
-            }
-            catch(Exception e)
-            {
+    public void actionPerformed(ActionEvent ae) {
+        if (ae.getSource() == search) {
+            String company = (String) companyT.getSelectedItem();
+            try {
+                searchRecordInCSV("student.csv", company);
+            } catch (IOException e) {
                 e.printStackTrace();
             }
         }
 
-        if(ae.getSource()==back)
-        {
-            try
-            {
+        if (ae.getSource() == back) {
+            try {
                 this.dispose();
-                Search1 h=new Search1();
-                h.setSize(2300,790);
+                Search1 h = new Search1();
+                h.setSize(2300, 790);
                 h.setVisible(true);
-            }
-            catch(Exception e)
-            {
+            } catch (Exception e) {
                 e.printStackTrace();
             }
         }
     }
 
-    public static void main(String args[])
-    {
-        Search1 ser=new Search1();
-		ser.setSize(2300,790);
-		ser.setVisible(true);
+    private void searchRecordInCSV(String filename, String company) throws IOException {
+        StringBuilder recordText = new StringBuilder();
+
+        try (BufferedReader br = new BufferedReader(new FileReader(filename))) {
+            String line;
+            boolean recordFound = false;
+            while ((line = br.readLine()) != null) {
+                String[] parts = line.split(",");
+                if (parts.length >= 7 && parts[6].equalsIgnoreCase(company)) {
+                    recordText.append("Company Results:\n");
+                    recordText.append("NAME\t|USN\t|SEM\t|BRANCH\t|CGPA\t|NOB\t|COMPANY\t|CTC\t|COMMENTS\n");
+                    recordText.append(
+                            "--------------------------------------------------------------------------------------------------------------------------------\n");
+                    recordText.append(line.replace(",", "\t"));
+                    recordText.append("\n");
+                    recordFound = true;
+                }
+            }
+
+            if (!recordFound) {
+                showMessageDialog(null, "No records found for the selected company.");
+            }
+        }
+
+        output.setText(recordText.toString());
+    }
+
+    public static void main(String args[]) {
+        SearchByCompany ser = new SearchByCompany();
+        ser.setSize(2300, 790);
+        ser.setVisible(true);
     }
 }
-
diff --git a/SearchByUSN.java b/SearchByUSN.java
index 02c8611..a0c64bf 100644
--- a/SearchByUSN.java
+++ b/SearchByUSN.java
@@ -7,145 +7,122 @@
 import java.util.*;
 import static javax.swing.JOptionPane.showMessageDialog;
 
-public class SearchByUSN extends JFrame implements ActionListener
-{
+public class SearchByUSN extends JFrame implements ActionListener {
     
-    private JLabel usnL,companyL;
-    private JTextField usnT,companyT; 
-    private JTextArea output,companyoutput;
-    private JButton search,back;
+    private JLabel usnL;
+    private JTextField usnT; 
+    private JTextArea output;
+    private JButton search, back;
     
-    Container con=null;
-    String usn="";
+    Container con = null;
 
-    SearchByUSN()
-    {
+    SearchByUSN() {
         super("Search By USN");
         con = getContentPane();
         con.setLayout(null);
-        Color  lightBlue = new Color(0,255,255);
+        Color lightBlue = new Color(0, 255, 255);
         con.setBackground(lightBlue);
 
-        con.setSize(300,300);
+        con.setSize(300, 300);
         con.setLayout(null);
         con.setVisible(true);
 
         Font font = new Font("Verdana", Font.BOLD, 16);
-        Color blue = new Color(30,144,255);
-        usnL=new JLabel("Enter usn of record to be searched");
-        usnL.setBounds(400, 50, 700,150);
+        Color blue = new Color(30, 144, 255);
+        
+        usnL = new JLabel("Enter USN of record to be searched");
+        usnL.setBounds(400, 50, 700, 150);
         usnL.setFont(font);
         usnL.setForeground(Color.BLACK);
         
-        usnT=new JTextField(200);
-		usnT.setBounds(725,100,250,50);
+        usnT = new JTextField(200);
+        usnT.setBounds(725, 100, 250, 50);
         usnT.setFont(font);
         usnT.setForeground(Color.BLACK);
 
-        output=new JTextArea();
-        output.setBounds(20,200,1200,350);
+        output = new JTextArea();
+        output.setBounds(20, 200, 1300, 350);
         output.setFont(font);
         output.setForeground(Color.BLACK);
         output.setEditable(false);
         
         search = new JButton("Search");
-		search.setBounds(400,600,150,40);
-		search.addActionListener(this);
+        search.setBounds(400, 600, 150, 40);
+        search.addActionListener(this);
         search.setFont(font);
-        Color pul = new Color(0,0,255);
-        Border bored = BorderFactory.createLineBorder(pul,5);
+        Color pul = new Color(0, 0, 255);
+        Border bored = BorderFactory.createLineBorder(pul, 5);
         search.setBorder(bored);
         search.setForeground(Color.WHITE);
         search.setBackground(blue);
 
         back = new JButton("Go Back");
-		back.setBounds(600,600,150,40);
-		back.addActionListener(this);
+        back.setBounds(600, 600, 150, 40);
+        back.addActionListener(this);
         back.setFont(font);
         back.setBorder(bored);
         back.setForeground(Color.WHITE);
         back.setBackground(blue);
 
         con.add(usnL);
-		con.add(usnT);
+        con.add(usnT);
         con.add(output);
         con.add(search);
         con.add(back);
     }
 
-    public void actionPerformed(ActionEvent ae) 
-    {
-        if(ae.getSource()==search)
-        {
+    public void actionPerformed(ActionEvent ae) {
+        if (ae.getSource() == search) {
             String usn = usnT.getText();
-			try
-            {
-                String name = "", usn1 ="", sem = "", branch = "", cgpa= "", nob="", company="",ctc="",comments="", r;
-                BufferedReader br = new BufferedReader(new FileReader("student.txt"));
-		        while((r= br.readLine()) !=null)
-		        {
-		        	String[] result = r.split("\\|");
-		        	name=result[0];
-		        	usn1=result[1];
-		        	sem= result[2];
-		        	branch=result[3];
-		        	cgpa=result[4];
-		        	nob=result[5];
-                    company=result[6];
-                    ctc=result[7];
-                    comments=result[8];
-		        	if(usn1.equals(usn))
-		        	{
-                        File temp = new File("temp.txt");
-					    Boolean createNewFile1 = temp.createNewFile();
-					    BufferedWriter pw = new BufferedWriter(new FileWriter(temp));
-                        String b = "NAME\t|USN\t|SEM\t|BRANCH\t|CGPA\t|NOB\t|COMPANY\t|CTC\t|COMMENTS";
-                        String bb = name  + "\t|" + usn1 + "\t|" + sem + "\t|" + branch + "\t|" + cgpa + "\t|" + nob + "\t|" + company + "\t|" + ctc + "\t|" + comments;
-                        pw.write(b);
-                        pw.write("\n");
-                        pw.write(bb);
-                        pw.write("\n");
-                        pw.close();
-                        br.close();
-                        File file = new File("temp.txt");
-                        BufferedReader br1 = new BufferedReader(new FileReader(file));
-                        output.read(br1,null);
-                        br1.close();  
-                        output.requestFocus();
-                        file.delete();
-		        		return ;
-		        	}
-		        }
-		        showMessageDialog(null , "Record not found");
-		        br.close();
-            }
-            catch(Exception e)
-            {
+            try {
+                searchRecordInCSV("student.csv", usn);
+            } catch (IOException e) {
                 e.printStackTrace();
             }
         }
 
-        if(ae.getSource()==back)
-        {
-            try
-            {
+        if (ae.getSource() == back) {
+            try {
                 this.dispose();
-                Search1 h=new Search1();
-                h.setSize(2300,790);
+                Search1 h = new Search1();
+                h.setSize(2300, 790);
                 h.setVisible(true);
-            }
-            catch(Exception e)
-            {
+            } catch (Exception e) {
                 e.printStackTrace();
             }
         }
     }
 
-    public static void main(String args[])
-    {
-        Search1 ser=new Search1();
-		ser.setSize(2300,790);
-		ser.setVisible(true);
+    private void searchRecordInCSV(String filename, String usn) throws IOException {
+        StringBuilder recordText = new StringBuilder();
+
+        try (BufferedReader br = new BufferedReader(new FileReader(filename))) {
+            String line;
+            boolean recordFound = false;
+            while ((line = br.readLine()) != null) {
+                String[] parts = line.split(",");
+                if (parts.length >= 2 && parts[1].equals(usn)) {
+                    recordText.append("Student Records:\n");
+                    recordText.append("NAME\t|USN\t|SEM\t|BRANCH\t|CGPA\t|NOB\t|COMPANY\t|CTC\t|COMMENTS\n");
+                    recordText.append(
+                            "--------------------------------------------------------------------------------------------------------------------------------\n");
+                    recordText.append(line.replace(",", "\t"));
+                    recordText.append("\n");
+                    recordFound = true;
+                }
+            }
+
+            if (!recordFound) {
+                showMessageDialog(null, "Record not found");
+            }
+        }
+
+        output.setText(recordText.toString());
+    }
+
+    public static void main(String args[]) {
+        SearchByUSN ser = new SearchByUSN();
+        ser.setSize(2300, 790);
+        ser.setVisible(true);
     }
 }
-
diff --git a/journal.csv b/journal.csv
new file mode 100644
index 0000000..14b75d8
--- /dev/null
+++ b/journal.csv
@@ -0,0 +1,2 @@
+101,03,8,1,Amazon,2400000,Exceptional Student
+102,03,9,1,Amazon,2400000,Good With DSA
diff --git a/student.csv b/student.csv
new file mode 100644
index 0000000..b9e89d8
--- /dev/null
+++ b/student.csv
@@ -0,0 +1,2 @@
+Shuence,101,03,ECE,8,1,Amazon,2400000,Exceptional Student
+Pranali,102,03,CSE,9,1,Amazon,2400000,Good With DSA