Java program to swap two integers

Read integers from users using the nextInt() method of the Scanner class.

To swap them −

• Create a variable (temp), initialize it with 0.
• Assign 1st number to temp.
• Assign 2nd number to 1st number.
• Assign temp to second number.

Example

import java.util.Scanner;
public class SwapTwoNumbers {
   public static void main(String args[]){
      Scanner sc = new Scanner(System.in);
      System.out.println("Enter first number :: ");
      int num1 = sc.nextInt();
      System.out.println("Enter second number :: ");
      int num2 = sc.nextInt();

      int temp = 0;
      temp = num1;
      num1 = num2;
      num2 = temp;

      System.out.println("After swapping ::");
      System.out.println("Value of first number ::"+ num1);
      System.out.println("Value of first number ::"+ num2);
   }
}

Output

Enter first number ::
22
Enter second number ::
33
After swapping ::
Value of first number ::33
Value of first number ::22

Chandu yadav

Published on 26-Apr-2018 08:55:52

• Related Questions & Answers
• Java program to add two integers
• Java program to swap two numbers using XOR operator
• C++ Program to Swap Two Numbers
• C program to swap two strings
• C Program to Add two Integers
• 8085 program to swap two 8-bit numbers
• Swap two variables in one line in Java
• Swap two numbers in C#
• Swap two variables in one line in using Java
• C# program to accept two integers and return the remainder
• How to Swap Two Variables using Python?
• Java Program to swap the case of a String
• Java Program to concatenate a String and Integers
• Java Program to concatenate Integers and a String
• Java Program to sort integers in unsorted array