JComponent size issue

Question

I have a JComponent subclass that I am using to draw shapes onto my screen. In the constructor, I am trying to set ballX and ballY to half

Answer 1

I agree with trashgod's answer. (+1)

Move the ballX and ballY in the paintComponent(g) like this

if (ballX==0 && ballY==0) {
    ballX = getWidth()/2;
    ballY = getHeight()/2;
}