feat: Add Bitwise3 class demonstrating bitwise XOR operation

Add a program that:
- Initializes two integers using binary literals
- Performs a bitwise XOR (`^`) operation
- Prints the result of the XOR computation
- Highlights how XOR compares bits in Java.

Author: Someshdiwan

Section5OperatorExpression/src/Bitwise3.java

@@ -1,15 +1,11 @@
-public class Bitwise3
-{
+public class Bitwise3 {
     public static void main(String[] args) {
         int x = 0b1010; //10;
-
         int y= 0b0110; //6;
 
         int z;
-
-        z = x ^ y;
-        //XOR Operation
+        z = x ^ y; //XOR Operation
 
         System.out.println(z);
     }
-}
+}