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JFrame Issue

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Join Date: Jul 2005

Posts: 45

Reputation: Sp!ke is an unknown quantity at this point

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Sp!ke

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JFrame Issue

Jun 1st, 2007

This is a really strange bug...

I'm doing a 'game' of sorts for Computer Science, and it works wonderfully. We have a main method that initializes things and starts the game loop. The game itself works when GUI.java is executed.

Every method call in the main method is static.

Now, the odd thing is that when that exact same code (copy and paste) is run from a different class, and either executed statically, or even when creating a new object and using that as a reference, both JFrames show up as necessary, but they are EMPTY. Big gaping transparent holes of nothing.

Can someone explain this phoenomenon?

FYI: Here's the main method I'm referring to:

 Help with Code Tags 
 java Syntax (Toggle Plain Text) 
// In class GUI:
 
public static void main(String[] args) {
	init(); //static 
	Console.run(frame, 808, 635); //Console class is static, frame is static
	panel.paintLevel(); // static
	panel.paintLevel(); // static
	frame.run(); // static
}
// In class GUI:

public static void main(String[] args) {
	init(); //static 
	Console.run(frame, 808, 635); //Console class is static, frame is static
	panel.paintLevel(); // static
	panel.paintLevel(); // static
	frame.run(); // static
}

And when called externally, either this:

 Help with Code Tags 
 java Syntax (Toggle Plain Text) 
// In External Class:
 
	GUI.init();
	Console.run(GUI.frame, 808, 635);
	GUI.panel.paintLevel();
	GUI.panel.paintLevel();
	GUI.frame.run();
// In External Class:

	GUI.init();
	Console.run(GUI.frame, 808, 635);
	GUI.panel.paintLevel();
	GUI.panel.paintLevel();
	GUI.frame.run();

or this

 Help with Code Tags 
 java Syntax (Toggle Plain Text) 
// In External Class:
 
	GUI gui = new GUI();
	gui.init();
	Console.run(gui.frame, 808, 635);
	gui.panel.paintLevel();
	gui.panel.paintLevel();
	gui.frame.run();
// In External Class:

	GUI gui = new GUI();
	gui.init();
	Console.run(gui.frame, 808, 635);
	gui.panel.paintLevel();
	gui.panel.paintLevel();
	gui.frame.run();

does the transparent frame effect.

Let me know if you need more information.

Last edited by Sp!ke; Jun 1st, 2007 at 1:49 am.

Geek and a Half Blog

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Join Date: May 2007

Posts: 4,439

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Ezzaral

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Re: JFrame Issue

Jun 1st, 2007

I don't think we can provide any insight without seeing the panel and frame classes.

On a side note, your may want to reconsider your design in making everything static and trying to manage the interactions by calling static methods on the objects. The main method should really only be responsible for creating whatever minimal number of objects are needed to set up the environment of your program. All other operations should be performed by those objects themselves.

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Join Date: Feb 2007

Posts: 41

Reputation: hussulinux is an unknown quantity at this point

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hussulinux hussulinux is offline

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Re: JFrame Issue

Jun 7th, 2007

Try calling the main function of GUI from the external class's method...
This is what actually JVM does...

Is there any package involved?

Also post more code, we'd like to test it on our machines too.