Number Palindrome Program

Question

I am stuck on this simple problem and can't figure out the bug. This is a method that returns whether the given number is a palindrome or not. However, every time it is returning false even though it's returning the correct palindrome. Please help.

 public static boolean isPalindrome(int number) {
                int reverse = 0;
        
                while (number != 0) {
        
                    reverse *= 10;
                    reverse += (number % 10);
                    number /= 10;
                }
                System.out.println(reverse);
        
                return (reverse == number);
            }

Answer 1

It looks like you're modifying number as you go, so number at the end is not the number that was passed in.

Maybe something like...

public static boolean isPalindrome(final int originalNumber) {
    int number = originalNumber;
    int reverse = 0;

    while (number != 0) {

        reverse *= 10;
        reverse += (number % 10);
        number /= 10;
    }
    System.out.println(reverse);

    return (reverse == originalNumber);
}