Write a Java program to swap two variables


Introduction

In this demo I have used NetBeans IDE 8.2 for debugging purpose. But you can use any java programming language compiler as per your availability..


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  1. public class Javaexcercise {
  2.  
  3. public static void main(String[] args) {
  4.  
  5. int num1, num2, temp;
  6. num1 = 30;
  7. num2 = 50;
  8. System.out.println("Before swapping : num1, num2 = "+num1+", "+ + num2);
  9. temp = num1;
  10. num1 = num2;
  11. num2 = temp;
  12. System.out.println("After swapping : num1, num2 = "+num1+", "+ + num2);
  13. }
  14. }

Result

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