swing - Switch imageIcon in java?

Question

I have many planes(threads) that move in window, and I want switch the ImageIcon according to the direction of the plane. For example: if a plane goes to the right, the imageIcon of the plane is right and then plane goes to the left, exchange the imageIcon for the plane is left. How can I do that in method paintComponent? Sorry for my bad english.

Answer 1

If you're talking about swapping the ImageIcon displayed by a JLabel, then you should not switch ImageIcons in paintComponent but rather should do this in the non-paintComponent region of code, perhaps in a Swing Timer. Even if you're not talking about a JLabel, the paintComponent method should not be used for changing the state of an object.

Your question however leaves too much unsaid to allow us to be able to answer it completely and well. Consider telling and showing more.