Swapping two variables without using third variable in java

Java code to swap two numbers without using temporary variable




import java.io.*;




class Test {

     public static void main(String[] args) throws IOException {

             

          int a,b;

          System.out.println("Enter first number:");

          BufferedReader br1=new BufferedReader(new InputStreamReader (System.in));

          a=Integer.parseInt(br1.readLine());