Question

JAVA Arrays
4 Write a method called isPalindrome that takes a String as input and returns true if the String is a palindrome.

Answer 1

import java.util.Scanner;

public class Palindrome {

    public static boolean isPalindrome(String str) {
        String modified = "";
        String reverse = "";
        for (int i = 0; i < str.length(); ++i) {
            if (Character.isAlphabetic(str.charAt(i))) {
                modified += str.charAt(i);
                reverse = str.charAt(i) + reverse;
            }
        }
        return modified.equalsIgnoreCase(reverse);
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter a string: ");
        String word = in.nextLine();
        if (isPalindrome(word)) {
            System.out.println(word + " is a palindrome");
        } else {
            System.out.println(word + " is NOT a palindrome");
        }
    }
}