Swing GUI Problem

[SsJBebiGoku]

Hi,
I am doing a sort of minesweeper game, and there's a menu to choose the difficulty (easy, medium, hard). Each difficulty has a larger play area and more mines. I am making it in a GridLayout. But I'm not sure how to make it so that it does make a whole new window when you choose a different difficulty. Here's the portion of the code that is called to make a new game/different difficulty:

Java:

public BoardDraw(String aDif)     {         super("MineSweeper Detection");                content = getContentPane();                 if (aDif.equals("Easy"))         {             content.setLayout(new GridLayout(9,9));             simBoard = new BoardProperties(9,9,9);             setBounds(400,300,225,250);         }         else if (aDif.equals("Medium"))         {             content.setLayout(new GridLayout(15,10));             simBoard = new BoardProperties(19,15,10);             setBounds(400,300,275,350);         }         else if (aDif.equals("Hard"))         {             content.setLayout(new GridLayout(20,15));             simBoard = new BoardProperties(21,20,15);             setBounds(400,300,315,450);         }         createMenu();         drawPlayArea();                 setResizable(false);         setVisible(true);         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);     }

Does anyone know how i make it either update the same window and i guess totally repaint it, or kill this window and start a new one?

Thanks a lot.

Martin was here