How to copy bufferedImage

Question

I have written the following example to give something runnable of a problem I am having. When you press the button the controlWhichImage switches to 2. The problem is that when

Answer 1

The problem is that getGraphics (or better named createGraphics) is called outside the if statement, also for 2, hence both causing a resource leak (as no g2.dispose is called), and also a clean slate.

    if (controlWhichImage == 1) {
        Graphics g2 = createdImage.getGraphics();      
        g2.drawImage(img,0,0,img.getWidth(),img.getHeight(),null);
        g2.dispose();
    }

Also do things like loading the image outside the paint code.