Palindrome Program in Java using Iteration

Interview Preparation

In this tutorial you will learn how to write a program in Java to check a given number is palindrome or not using iteration.

Before moving directly on the writing the program

Read this: What is Palindrome Number? Write a palindrome program in C.

How our Java program will behave?

Our program will take a number as an input to check given number of.

Suppose if someone gives an input 121 then our program should print “the given number is a palindrome”.

And if someone given input 123 the our program should print “the given number is not a palindrome number”.

Java program for palindrome number using iterative method

import java.util.*;  
class Main{
    public static void main(String ...args){
        int tempvar,remainder,reverseNum=0;
        Scanner sc= new Scanner(System.in);
        System.out.print("Enter number- ");  
        int originalNum= sc.nextInt();  
        tempvar = originalNum;
        while (tempvar != 0) {
            remainder = tempvar % 10;
            reverseNum = reverseNum * 10 + remainder;
            tempvar /= 10;
        }
        if (originalNum == reverseNum)
            System.out.print("Number is palindrom");  
        else
	        System.out.print("Number is not palindrom");
    }
}

Output:

java program to check Number is palindrom or not using iterative

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