Question

A Palindrome is a string that is spelled the same way forward and backward (example: radar).

Write a Java program that asks the user to input a string and tests whether the string is a Palindrome or not.

Display the message: "The string is a Palindrome" if it is, or "The string is NOT a Palindrome" if it is not.

Assume that the user will enter a string without any spaces. The string can be any length.

The String can contain letters(all lower case) and/or numbers or both.

Include any validation and exception handling needed to make the program work.

///UK

Answer 1

import java.util.Scanner;
public class Palindrome {
    public static void main(String args[]){
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter a string: ");
        String s1 = scanner.nextLine();
        String r = "";

        int size = s1.length();
        for(int i = size-1;i>=0;i--)
            r = r + s1.charAt(i);
        if (s1.equals(r)) {
            System.out.println(s1 + " is palindrome");
        } else {
            System.out.println(s1 + " is not palindrome");
        }
    }
}