Create Folder Structure Based on Java Topics

[MiguelAntonioRS]

Currently, there's no indication of how projects are categorized. Adding a structured folder system would help users find relevant content faster.

Suggest categories like:
    beginner-friendly/
    data-structures/
    gui-applications/
    console-applications/
    algorithms/

[Misskarina]

This is a great idea 👍 A structured folder system will definitely improve project navigation and help new contributors quickly find relevant content.

In addition to the suggested categories, we might also consider:

• advanced-concepts/ → OOP, generics, multithreading, design patterns
• spring-framework/ → projects using Spring Boot, Spring MVC
• interview-prep/ → common coding challenges and solutions
• utilities/ → small helper programs or snippets

Having a clear hierarchy like this not only organizes existing projects but also sets a guideline for future contributions. Once the categories are finalized, I’d be happy to help with restructuring or creating a PR for it.