Remove button on click

[Scriptr]

I am making a vertical scroller game, and first I have the launcher.
There is a button for "load game" and "new game." those are the only two items on the screen until one is clicked. I would like to remove them on click, but when I put remove(lGame);remove(nGame); in the actionPerformed method of the action listener, it freezes the program on click. What do I do to fix this?

public class Launcher extends JFrame{
	
	private JButton nGame;
	private JButton lGame;
	private String dir = "";
	
	public Launcher(){
		super("Space Invaders");
		setLayout(new FlowLayout(FlowLayout.CENTER));
		
		if(isWindows()){
			System.out.println("Windows");
			dir = "%APPDATA%\\.SInvaders\\save.sav";
		}
		if(isUnix() || isMac()){
			System.out.println("Linux/Unix/Mac");
			dir = "~/.SInvaders/save.sav";
		}
		
		nGame = new JButton("New Game");
		lGame = new JButton("Load Save");
		File sav = new File(dir);
		
		add(nGame);
		add(lGame);
		
		nGame.addActionListener(new HC(false));
		lGame.addActionListener(new HC(true));
		
		if(!sav.exists()){
			lGame.setEnabled(false);
		}
        }
//methods for OS detection

        private class HC implements ActionListener{
		
		boolean load;
		
		public HC(boolean load){
			this.load = load;
		}
		@Override
		public void actionPerformed(ActionEvent arg0) {
			remove(nGame);
			remove(lGame);
		}
	}
}

[Fou-Lu]

You'll need to repaint the parent frame. Most reliable way would be to take a component into the constructor of the HC to handle the repaint from there. Most generic way would be to pull the parent from the nGame and lGame onclick.

Edit:
Wait, this is an inner class. You can simply call repaint() inside the actionPerformed.

[Scriptr]

Originally Posted by Fou-Lu

You'll need to repaint the parent frame. Most reliable way would be to take a component into the constructor of the HC to handle the repaint from there. Most generic way would be to pull the parent from the nGame and lGame onclick.

Edit:
Wait, this is an inner class. You can simply call repaint() inside the actionPerformed.

I called repaint from actionPerformed, and it did nothing.

I then realized that you intended for me to add it, not replace the current content.

Thank you for your help; just thought I'd clear that up for someone else who comes across this thread later.

[Scriptr]

Could I (if so should I) put a JPanel inside my JFrame? Or, could/should I use a JPanel INSTEAD OF a JFrame?

My current code is to make the JPanel in the Game class and then add a Game object to my JFrame. Please correct me if that is wrong, but it works for basic things.

[Fou-Lu]

You should put your components on a panel, then put the panel on the frame. Lets you segment the layout since panels will take layout managers as well.