Palindrome program in java

Check given number is palindrome or not

If we reverse a number, that reverse number and original number (given number) both are equal then that number is palindrome number.

Example:

Given number is 121

After reverse the above number, we get 121

Given number and reverse numbers are equal so 121 is palindrome

123 is not palindrome because, 123 reverse is 321 so both are not equal

 

import java.util.Scanner;

public class Palindrome {

    public static void main(String[] arg){

        Scanner sc=new Scanner(System.in);

        System.out.println("Enter a Number");

        int i=sc.nextInt();

        int j=i;

        int a,rev=0;

        while(i>0){

           a=i%10; 

           rev=rev*10+a;

           i=i/10;

        }

        System.out.println("reverse number is :"+rev); 

        if(j==rev){

            System.out.println("given number is palindrome"); 

        }

        else{

             System.out.println("given number is not palindrome");

        }        

    }    

}

/*

Output1:

Enter a Number

123

reverse number is :321

given number is not palindrome

Output2:

Enter a Number

121

reverse number is :121

given number is palindrome

*/