/** Palindromes are words that spell the same thing 
 *  when they are written forwards or backwards.
 *  This program test to see whether a string 
 *  entered by the user is a  Palindrome and 
 *  displays whether it is or not.
 */
public class Palindrome{
 
    /** Copnstructs a Palindrome object, which gathers
     *  a line of input from the user and tests if it
     *  is a Palindrome or not, and displays a message.
    */
    public Palindrome(){
        String test = getString();
        if (isPalindrome(test)){
            System.out.println(test + " is a Palindrone.");
        }else{
            System.out.println(test + " is not a Palindrone.");
        }
    }
    
    /** Runs the application. 
     */
    public static void main (String[] args){
        new Palindrome();
    }
    
    /** Prompts the user to eneter a string and 
     *  returns a line entered from standard input.
     */
    private String getString(){
        String s = "";
        try{
            System.out.println("Enter a String: ");
            java.io.InputStreamReader isr = new java.io.InputStreamReader(System.in);
            java.io.BufferedReader br = new java.io.BufferedReader(isr);
            s = br.readLine();
        }catch(java.io.IOException ioe){
            System.err.println("IOException: " + ioe.getMessage());
        }
        return s;
    }
    
    /** Tests if the input string is the same as its reverse. 
     */
    private boolean isPalindrome(String input){
        return input.equals(getReverse(input));
    }
    
    /** Reverses the characters in a string. 
     */
    private String getReverse(String s){
        String reverse = "";
        for (int i = s.length() - 1; i >= 0; i = i -1){
            reverse = reverse + s.charAt(i);
        }
        return reverse;
    }
} 

/** Palindromes are words that spell the same thing 
 *  when they are written forwards or backwards.
 *  This program test to see whether a string 
 *  entered by the user is a  Palindrome and 
 *  displays whether it is or not.
 */
public class Palindrome{
 
    /** Copnstructs a Palindrome object, which gathers
     *  a line of input from the user and tests if it
     *  is a Palindrome or not, and displays a message.
     *  If not it adds the int value of the reverse of
     *  the number and check to see if it is a palindrome.
     */
    public Palindrome(){
        String first = getString();
        if (isPalindrome(first)){
            System.out.println(first + " is a Palindrone.");
        }else{
            System.out.println(first + " is not a Palindrone.");
            int p = toInt(first);
            String reverse = getReverse(first);
            int q = toInt(reverse);
            if ((p > 0) && (q > 0)){
                int r = p + q;
                String second = String.valueOf(r);
                if (isPalindrome(second)){
                    System.out.println(second + " is a Palindrone.");
                }else{
                    System.out.println(second + " is not a Palindrone.");
                }
            }
        }
    }
    
    /** Runs the application. 
     */
    public static void main (String[] args){
        new Palindrome();
    }
    
    /** Prompts the user to eneter a string and 
     *  returns a line entered from standard input.
     */
    private String getString(){
        String s = "";
        try{
            System.out.println("Enter a Positive Integer: ");
            java.io.InputStreamReader isr = new java.io.InputStreamReader(System.in);
            java.io.BufferedReader br = new java.io.BufferedReader(isr);
            s = br.readLine();
        }catch(java.io.IOException ioe){
            System.err.println("IOException: " + ioe.getMessage());
        }
        return s;
    }
    
    /** Tests if the input string is the same as its reverse. 
     */
    private boolean isPalindrome(String input){
        return input.equals(getReverse(input));
    }
    
    /** Reverses the characters in a string. 
     */
    private String getReverse(String s){
        String reverse = "";
        for (int i = s.length() - 1; i >= 0; i = i -1){
            reverse = reverse + s.charAt(i);
        }
        return reverse;
    }
    
    /** Converts a string into an int or -1 if not an int. 
     */
    private int toInt(String s){
        int n = -1;
        try{
            n = Integer.parseInt(s);
        }catch(NumberFormatException nfe){
            System.err.println("That was not a positive integer string.");
        }
        return n;
    }
}