This is NOT a simple example there is still way to much junk in the code. For example, what does all the image filtering have to do with display an image? What does all the Thread code have to do with displaying an image?
The answer is changing the draw() method in the class that extends JPanel to paintComponent() and switching the last parameter in the call to drawImage() to 'this' instead of 'null'. Worked instantly and perfectly!
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.