Write a java program to check whether a number is palindrome or not. Given an input number, we have to write a code to check whether a number is palindrome or not.

Before solving this problem, let's first understand what is palindrome number?

A palindrome number is a number that remains the same when its digits are reversed.

For example - 121, 454, 12521 etc.

If we reverse 121, it remains 121 so it's a palindrome number.

To check whether a number is palindrome or not, just reverse a number and compare with the input number. If it's equal then it's a palindrome number otherwise it's not.

C program to reverse a number

Reverse a number using recursion - C, C++ code

Java program to count number of digits in a number

To check whether a number is palindrome or not, we have to reverse a number and compare it with the input number. If both the numbers are equal then it's a palindrome number. Let's implement them programmatically.

Program to reverse a string in java

Java program to print factorial of a number

Before solving this problem, let's first understand what is palindrome number?

#### What is Palindrome Number?

A palindrome number is a number that remains the same when its digits are reversed.

For example - 121, 454, 12521 etc.

If we reverse 121, it remains 121 so it's a palindrome number.

### How do we check whether a number is palindrome or not

To check whether a number is palindrome or not, just reverse a number and compare with the input number. If it's equal then it's a palindrome number otherwise it's not.

C program to reverse a number

Reverse a number using recursion - C, C++ code

Java program to count number of digits in a number

## Java Program to Check whether a Number is Palindrome or not

To check whether a number is palindrome or not, we have to reverse a number and compare it with the input number. If both the numbers are equal then it's a palindrome number. Let's implement them programmatically.

public class Palindrome { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.println("Enter an input number"); int num = in.nextInt(); // Assign number in temp int temp = num; int rev = 0, digit; // Logic to reverse a number while (temp > 0) { digit = temp % 10; rev = rev * 10 + digit; temp = temp / 10; } /* * If original and reverse of a number * is equal then it's a palindrome number. */ if (rev == num) { System.out.println(num + " is palindrome"); } else { System.out.println(num + " is not a palindrome"); } } }

**Output :**Program to reverse a string in java

Java program to print factorial of a number

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