Write a Java program to check whether a given word is a palindrome or not. for e.g. MADAM is a palindrome but eat is not.

Sure, here is a simple Java program that checks if a given word is a palindrome or not:

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Enter a word:");
        String word = scanner.nextLine();
        String reversedWord = new StringBuilder(word).reverse().toString();
        if(word.equalsIgnoreCase(reversedWord)) {
            System.out.println(word + " is a palindrome.");
        } else {
            System.out.println(word + " is not a palindrome.");
        }
    }
}

Here's how it works:

1. We import the Scanner class which is used to get user input.

2. We create a new instance of the Scanner class.

3. We prompt the user to enter a word.

4. We read the user's input using the nextLine() method of the Scanner instance.

5. We create a new StringBuilder instance with the user's word, reverse it, and convert it back to a String.

6. We compare the reversed word with the original word using the equalsIgnoreCase() method. This method returns true if the two strings are equal, ignoring case considerations.

7. If the original word and the reversed word are equal, we print that the word is a palindrome. Otherwise, we print that the word is not a palindrome.