Palindrome.java

import java.util.Scanner; 
/** * How to check if String is palindrome in Java * using StringBuffer *
public class Palindrome 
{
  public static void main(String args[]) 
  { 
     Scanner reader = new Scanner(System.in); 
     System.out.println("Please enter a String"); 
     String input = reader.nextLine();
     System.out.printf("Is %s a palindrome? : %b %n", input, isPalindrome(input));
     System.out.println("Please enter another String");
     input = reader.nextLine();
     System.out.printf("Is %s a palindrome? : %b %n", input, isPalindrome(input)); reader.close();
     }
     public static boolean isPalindrome(String input) 
     {  
        if (input == null || input.isEmpty()) 
        {  
           return true; 
        } 
        char[] array = input.toCharArray(); 
        StringBuilder sb = new StringBuilder(input.length()); 
        for (int i = input.length() - 1; i >= 0; i--) 
        { 
            sb.append(array[i]);
        } 
        String reverseOfString = sb.toString(); 
        return input.equals(reverseOfString); 
        } 
  }