java - Image Panel doesn't show up immediately in JFrame

Question

So I have a class which extends JPanel and on which I draw a BufferedImage (in its paintComponent method). However, the image doesn't show up until I resize the window. Any idea how to fix this? I've tried repaint without much success.

Answer 1

You must use the validate(); method along with repaint();.

frame.repaint();
frame.validate();
frame.setVisible(true);