Migrate development environment from Windows to macOS and continue project updates

- Shifted primary development environment from Windows to macOS to ensure better performance, stability, and streamlined workflow for Java development.
- Removed OS-specific metadata and ensured platform-agnostic project compatibility.
- Normalized line endings to LF for cross-platform consistency.
- Verified and adjusted file paths, permissions, and encoding settings to suit macOS environment.
- Cleaned up unnecessary Windows-generated files and updated Git configuration accordingly.
- Future commits and development will now be
managed entirely from macOS.

This migration ensures a cleaner, more consistent
setup moving forward and prepares the project for
scalable development across Unix-based systems.

Future development will continue on macOS for a
smoother, Unix-based experience.

Signed-off-by: Someshdiwan <[email protected]>

Author: Someshdiwan

Section13AbstractClasses/src/Abs1.java

@@ -0,0 +1,26 @@
+abstract class Test1
+{
+    abstract void show();
+    void display()
+    {
+        System.out.println("Hello Woeld!");
+    }
+}
+
+class Test2 extends Test1
+{
+    void show()
+    {
+        System.out.println("Welcome");
+    }
+}
+
+class Abs1
+{
+    public static void main(String[] args)
+    {
+        Test2 t = new Test2();
+        t.display();
+        t.show();
+    }
+}