Get size of a JFrame

I need to get the Width and height of a J frame and pass those 2 integers to a method.  I have attempted this with myFrame.getHeight() but when I try to print the value all I get is a 0.  Can anyone show me what sort of code I should be using for this.

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make sure the frame is visible before you check getHeight and getWidth
grhs0043Author Commented:
It is .... i can see the frame when the program compiles but I cant get the height or width of it.
can you post your code?
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grhs0043Author Commented:
public class mainFrame extends Frame {
JPanel graphPanel = new JPanel();
graphPanel.setEnable(false);  // <--tried this enabled to
contentPane.add(graphPanel, BorderLayout.CENTEr);

panelHeight=graphPanel.getHeight();   <--panel Height INT
panelWidth=graphPanel.getWidth();     <-- so is panelWidth
graphPanel.add(myGraph, new XYConstraints(0,0,350,350));

This is the just of the code.... hopefully it helps...
Any Idea whats wrong.
i'm not sure if you are doing this, but like i said, the JFrame has to be VISIBLE on screen before calling getHeight and getWidth:

public class MainFrame extends JFrame {
   JPanel graphPanel;

   public MainFrame() {
      graphPanel = new JPanel();
      getContentPane().add(graphPanel, BorderLayout.CENTER);; // if the below lines are above this, they will both return 0

   public static void main(String[] args) {
      MainFrame mf = new MainFrame();

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grhs0043Author Commented:
thanks for the help.  Thar one line completely solved my problem(;   )

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