public KalaGame(KeyBoardPlayer player1,KeyBoardPlayer player2)
 {   //super(0);
 int key=0;
 try
 {

     do{
     System.out.println("Enter the number of stones to play with: ");

      BufferedReader br = new BufferedReader(new InputStreamReader(System.in));  
        key = Integer.parseInt(br.readLine());  


    if(key<0 || key>10)
  throw new InvalidStartingStonesException(key);
  }
 while(key<0 || key>10);
    player1=new KeyBoardPlayer();
   player2 = new KeyBoardPlayer(); 
   this.player1=player1;
   this.player2=player2;
   state=new KalaGameState(key);



 }


    catch(IOException  e)
    {
       System.out.println(e);
      }
     } 

when i enter an invalid number of stones i get this error

Exception in thread "main" InvalidStartingStonesException: The number of starting stones must be greater than 0 and less than or equal to 10 (attempted 22)

why isn't the exception handled by the throw i defined at

KalaGame.<init>(KalaGame.java:27) at PlayKala.main(PlayKala.java:10)