PalindromeChecker.java

package practicalonep2.uk.ac.qub;

import java.util.Scanner;

public class Palindrome {

	 public static void main(String args[]){
	   
	      String original, reverse="";
	      Scanner scanner = new Scanner(System.in);
	 
	      System.out.println("Enter a word or sentence to check if it is a palindrome:");
	      original = scanner.nextLine();
	      scanner.close();
	      int length = original.length();
	 
	      for ( int counter = length -1 ; counter >= 0 ; counter-- ){
	         reverse += original.charAt(counter);
	      }
	      if (original.replaceAll("\\s+","").equalsIgnoreCase(reverse.replaceAll("\\s+",""))){
	         System.out.printf("'%s' is a palindrome.",original);
	      }else{
	         System.out.printf("'%s' is not a palindrome.",original);
	      }
   }
}