Java program to reverse number


Levels of difficulty: / perform operation:

This program prints reverse of a number i.e. if the input is 951 then output will be 159.

This java program

import java.util.Scanner;
class ReverseNumber {
	public static void main(String args[]) {
		int n, reverse = 0;
		System.out.println("Enter the number to reverse");
		Scanner in = new Scanner(System.in);
		n = in.nextInt();
		while( n != 0 ) {
			reverse = reverse * 10;
			reverse = reverse + n%10;
			n = n/10;
		}
		System.out.println("Reverse of entered number is "+reverse);
	}
}


Output

You can also reverse or invert a number using recursion. You can use this code to check if a number is palindrome or not, if the reverse of an integer is equal to integer then it’s a palindrome number else not.