Need help on creating my own exception class

Question

The program should check if the user entered a string larger than eight characters. If so, throw a user-defined exception. I'm getting the following errors:
Any help is great.
C:\Program Files\Xinox Software\JCreatorV3\MyProjects\StringTooLong\src\StringTooLong.java:25: <identifier> expected
System.out.println("Enter a message less or equal of eight characters:\n:");
^
C:\Program Files\Xinox Software\JCreatorV3\MyProjects\StringTooLong\src\StringTooLong.java:27: illegal start of type
try
^
C:\Program Files\Xinox Software\JCreatorV3\MyProjects\StringTooLong\src\StringTooLong.java:41: <identifier> expected
^
3 errors
import java.io.*;
* The main logic class of the program.
public class StringTooLong implements IOException
     BufferedReader br = new BufferedReader(new InputSTreamReader(System.in));
     String buffer = "";                    // Stores user input.
     // Tells the user what to do.
     System.out.println("Enter a message less or equal of eight characters:\n:");
     try
          buffer = br.readLine();
          if (buffer.length > 8)
               throw new StringTooLongException;
          System.out.println("Your String: " + buffer);     
     catch (StringTooLongException e)
          System.out.println("\nThe string was too long!");
class StringTooLongException extends Exception
     public StringTooLongException()
}

Answer 1

well you've mis-typed "InputStreamReader" (note capital t) and I don't think you want to be implementing IOException.
Oh, and you're code isn't inside a method.
Do this:public class WhateverItsCalled {
  public static void main(String[] args) throws IOException {
   // your code goes here
// your other class here