SwapTwoNoWithUsing3rdVariable.java

public class SwapTwoNoWithUsing3rdVariable {
    public static void main(String[] args) {
        int a = 10;
        int b = 20;
        System.out.println("Before Swap:" +a+ " , " +b);

        a = a+b;  //30
        b = a-b;  //10
        a = a-b;  //20

        System.out.println("After Swap:" +a+ " , "+b);
    }
}