ReverseOfANumber.java

// Problem
// Result
// Reverse of a number
// Send Feedback
// Write a program to generate the reverse of a given number N. Print the corresponding reverse number.
// Note : If a number has trailing zeros, then its reverse will not include them. For e.g., reverse of 10400 will be 401 instead of 00401.

// Input format :
// Integer N
// Output format :
// Corresponding reverse number
// Constraints:
// 0 <= N < 10^8
// Sample Input 1 :
// 1234
// Sample Output 1 :
// 4321
// Sample Input 2 :
// 1980
// Sample Output 2 :
// 891

import java.util.Scanner;

/**
 * ReverseOfANumber
 */
public class ReverseOfANumber {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        int n = s.nextInt();
        int ans = 0;
        while (n != 0) {
            int rem = n % 10;
            ans = ans * 10 + rem;
            n = n / 10;
        }
        System.out.println(ans);
        s.close();
    }
}