Palindrome Number

less than 1 minute read

This program was created to check if a number is a palindrome.

A palindrome is a number where if you take the middle number, the left and right side mirror the same numbers (i.e: 12321, 51415, 121).

The code has been modified slightly and now uploaded to the site.

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Solution.java

import java.util.Arrays;

public class Solution {
    public static void main(String[] args) {
        System.out.println(isPalindrome(121));
        System.out.println(isPalindrome(-121));
        System.out.println(isPalindrome(10));
        System.out.println(isPalindrome(-101));
    }

    public static boolean isPalindrome(int x) {
        String concat = "";
        // int value = -1;
        String convertToString = x + "";
        char[] differentiate = convertToString.toCharArray();
        System.out.println(Arrays.toString(differentiate));
        for (int i = 0; i < differentiate.length; i++){
            concat += differentiate[differentiate.length - i - 1] + "";
        }
        if (concat.equals(x + "")){
            return true;
        }
        else {
            return false;
        }
    }
}

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