Java Program to check a number is a palindrome or not using class and object


In this program, You will learn how to check a number is palindrome or not using class and object in java.


Some list of palindrome numbers is: 11 22 121 13131

Example: How to check a number is palindrome or not using class and object in java.

import java.util.Scanner;

class Main {

    int n, num, rev = 0, r;
    Scanner sc = new Scanner(System.in);

    void input() {
        System.out.print("Enter a number:");
        n = sc.nextInt();
        num = n;
    }

    void check() {
        while (n > 0) {
            r = n % 10;
            rev = rev * 10 + r;
            n = n / 10;
        }
        if (num == rev) {
            System.out.println("Number is palindrome:" + num);
        } else {
            System.out.println("Number is not palindrome:" + num);
        }
    }

    public static void main(String args[]) {
        Main rr = new Main();
        rr.input();
        rr.check();
    }
}

Output:

Enter a number:121
Number is palindrome:121

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