String too long exception

Question

hey everyone, I'm trying to modify this program so that i can use my own defined exception StringLongException in it. then after each time a string has been entered you have the choice to enter another.
import java.util.Scanner;
public class StringLongE
   public static void main (String[] args)
      String letters;
StringLongException problem = new StringLongException("too long");
      Scanner scan = new Scanner (System.in);
      System.out.print ("Enter product code (XXX to quit): ");
      code = scan.nextLine();
      while (!code.equals ("XXX"))
         try
          if(letters.length > 35)
          throws problem
         catch (StringLongException exception)
            System.out.println ("Improper string length: " );
         System.out.print ("Enter product code (XXX to quit): ");
         code = scan.nextLine();
System.out.println(letters);
}thanks i appreicate the help

Answer 1

ok, sorry guys, lets try this again....
import java.util.Scanner;
public class StringLong
     public static void main (String[] args) throws StringLongException
          String letters;
          StringLongException problem = new StringLongException("too long");
          Scanner scan = new Scanner (System.in);
          System.out.print ("Enter a String with the range(XXX to quit): ");
         letters = scan.nextLine();
         while (!letters.equals ("XXX"))
            try
               if (letters.length() > 35 );              
               throw problem;
              catch (StringLongException exception)
               System.out.println("STRING WAS TOO LONG PLEASE TRY ANOTHER:");
          System.out.println (letters);
          System.out.print ("Enter a String within the range(XXX to quit): ");
          letters = scan.nextLine();
          System.out.println();
     }this is the updated version