Question

1) IN JAVA Write a short program that tests if an inputted word is a palindrome. A palindrome is a word that is spelled exactly the same forward and backwards such as radar or mom. You must look at individual characters for the solution, do not use a premade method such as reverse! ALSO DO THIS IN ONE SINGULAR MAIN WITH NO STATIC METHODS

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().toLowerCase();
        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");
        }
    }
}

$\color{blue}\underline{Output:}$

Enter a string: radar radar is palindrome Process finished with exit code o