Java Program to Check a Number is Palindrome or Not

In this post we will explore the basic java program to check a number is palindrome or not and explaining the concept of palindromic numbers and how the program works.


A palindrome number is a number that remains the same when its digits are reversed.
For example, 121 ,12321 are palindrome numbers, but 1234 is not.

Problem Statement :

The problem is that you are given a number, and you have to check whether the number is a palindrome number or not.

Example 1:

Input1 :


Output 1: 

The number 121 is a Palindrome Number.

Example 2:

Input2 :



The number 321 is not a Palindrome Number.

Explanation :

For the number 121, you can see that if you read the number from backwards or forward, it reads the same. So, this number is a palindrome.

But for the number 123, it’s not a palindrome as it doesn’t read the same for the backwards and forward

Solution :


  1. Take the number as an input.
  2. Store it in a temporary variable.
  3. Reverse the number.
  4. Compare the reversed number with the temporary number.
public class PalindromeNumber {
    public static void main(String[] args) {
        int number = 121;
        int temp = number;
        int reverse = 0,rem;
        while(number > 0) {
            rem = number % 10;
            reverse = reverse * 10 + rem;
            number /= 10;

        if(temp == reverse) {
            System.out.printf("The Number %d is a Palindrome Number",+temp);
            System.out.printf("The Number %d is not a Palindrome Number",+temp);


The Number 121 is a Palindrome Number

More practice programs:

Java Program to Reverse a Number

Java Program to check if a String is Palindrome or not

Java Program to Count Digits of a Number

Java Program to Print Multiplication Table of a Number

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