Simple draw line program not working

[forms]

Hi, im trying to get this simple program to work and it wont run.
I can't see what i am doing wrong.
I keep getting a lightbulb icon next to the class header saying: The serializable class Balls does not declare a static final serialVersionUID field of type long.

All i want to do is draw a line.
Any help would be greatly appreciated. Thanks.

import java.awt.*;
import javax.swing.*;

public class Balls extends JPanel {
	
	public void main(String [] args){
		Balls b = new Balls();	
		JFrame frame = new JFrame();
		frame.add(b);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setSize(300, 300);
		frame.setVisible(true);
	}
	
	public void paintComponent(Graphics g){
	    g.drawLine(0,0,90,90);
		
	}

}

[KevinWorkman]

Your program works for me. That's just a compiler warning, not an error.

[forms]

When i click run a different program runs in the same folder.
I cant get this particular program to run.
Im using eclipse.
Thanks

[KevinWorkman]

Not really sure what we can do with that description. Have you tried running from the command prompt? Have you tried cleaning your project, or doing a refresh?

[forms]

I get a message saying the code does not contain a main type and it does not contain an applet therefore it cannot run.
Any ideas?
All my other programs run fine.

[forms]

I found the error.
There was no static keyword in the main method header. I would have assumed eclispe would have highlighted this as an error.
How did the program work for you?
Thanks for your help.

[camickr]

It should be:

    public static void main(String [] args){

You are missing the 'static' keyword.

[KevinWorkman]

I found the error.
There was no static keyword in the main method header. I would have assumed eclispe would have highlighted this as an error.
How did the program work for you?
Thanks for your help.

It's not an error because you can have a non-static method named main. Never assume eclipse is going to do anything for you- in fact, at this stage in the game, I suggest ditching eclipse altogether.

And it worked for me because I copied it into my own test program that had the correct syntax for main.