YinZ

I do this:
set a boolean defined as:

private boolean hide = false; Then need to set the area for when the mouse is clicked. Two rectangles are set, point p then gets the mouse click and if that point is in the rectangles opens/closes depending on what the boolean is set at.

public void mouseClicked(MouseEvent e) { Point p; Rectangle close = new Rectangle(490, 346, 20, 25); Rectangle open = new Rectangle(490, 346, 20, 25); p = e.getPoint(); if (close.contains(p) && !hide) { hide = true; } else if (open.contains(p) && hide) { hide = false; } } Then the paint just checks the boolean to see if its false/true and shows the corresponding image and other gibberish.

public void onPaint(Graphics g) { if (!hide) { //if boolean is currently not hiding then shows all information g = (Graphics2D)g; g.drawImage(img3, 7, 344, null); //other important information down here } else { //if boolean says hidden then draws image where you want it to be g.drawImage(img2, 490, 346, null); //usually just a simple 'X' or show paint } }