Google Java Format

Author: github-actions

Author.java

@@ -1,3 +1 @@
-public record Author(String Name) {
-
-}
+public record Author(String Name) {}

Book.java

@@ -1,4 +1 @@
-public record Book(String title) {
-    
-
-}
+public record Book(String title) {}

BookCollection.java

@@ -6,38 +6,38 @@
 
 public record BookCollection(HashMap<Author, List<Book>> collection) {
 
-    public void addAuthor(Author author) throws DuplicateKeyException {
-        if (collection.containsKey(author)) {
-            throw new DuplicateKeyException();
-        }
-
-        collection.put(author, new ArrayList<>());
+  public void addAuthor(Author author) throws DuplicateKeyException {
+    if (collection.containsKey(author)) {
+      throw new DuplicateKeyException();
     }
 
-    public void addBook(Author author, Book book) {
-        collection.get(author).add(book);
-    }
+    collection.put(author, new ArrayList<>());
+  }
 
-    public Optional<Book> getBookByTitle(String title) {
-        for (List<Book> books : collection.values()) {
-            for (Book b : books) {
-                if (b.title().equals(title)) {
-                    return Optional.of(b);
-                }
-            }
+  public void addBook(Author author, Book book) {
+    collection.get(author).add(book);
+  }
+
+  public Optional<Book> getBookByTitle(String title) {
+    for (List<Book> books : collection.values()) {
+      for (Book b : books) {
+        if (b.title().equals(title)) {
+          return Optional.of(b);
         }
-        return Optional.empty();
+      }
     }
+    return Optional.empty();
+  }
 
-    public Optional<Author> getMostDiligentAuthor() {
-        Author mostDiligentAuthor = null;
-        int mostBooks = 0;
-        for (Entry<Author, List<Book>> entry : collection.entrySet()) {
-            if (entry.getValue().size() > mostBooks) {
-                mostDiligentAuthor = entry.getKey();
-                mostBooks = entry.getValue().size();
-            }
-        }
-        return Optional.ofNullable(mostDiligentAuthor);
+  public Optional<Author> getMostDiligentAuthor() {
+    Author mostDiligentAuthor = null;
+    int mostBooks = 0;
+    for (Entry<Author, List<Book>> entry : collection.entrySet()) {
+      if (entry.getValue().size() > mostBooks) {
+        mostDiligentAuthor = entry.getKey();
+        mostBooks = entry.getValue().size();
+      }
     }
-}
+    return Optional.ofNullable(mostDiligentAuthor);
+  }
+}

DuplicateKeyException.java

@@ -1,5 +1,4 @@
 public class DuplicateKeyException extends Exception {
 
-    private static final long serialVersionUID = 1L;
-
-}
+  private static final long serialVersionUID = 1L;
+}

Exercise.java

@@ -23,7 +23,5 @@ public static void main(String[] args) {
 
     System.out.println(collection.getBookByTitle("Das Lied von Eis und Feuer 5"));
     System.out.println(collection.getMostDiligentAuthor());
-
   }
-
 }