Question

I’ve been trying for a long time to color my JFrame background to black or put an image on it. My GUI contains a main frame and a panel above it and some other buttons on this panel. Any help?

Answer 1

What have you tried?
If you add a JPanel to your JFrame, it takes upp the full space, then you need to set the background on the JPanel.

JFrame myFrame = new JFrame();
JPanel myPanel = new JPanel();
JButton myButton = new JButton("myButton");
myPanel.add(myButton);
myPanel.setBackground(Color.BLACK);
myFrame.add(myPanel);
myFrame.pack();
myFrame.setVisible(true);