GUI problem for a really beginner...error?!

[Nadine Ernest]

Hi, i just wrote this code and it compiles but it just doesnt give me anything....when i click the run button on Jcreator it tells me

java.lang.NoSuchMethodError: main
Exception in thread "main"
Process completed.

and this is my code:

import javax.swing.*;
import java.awt.Color;
import java.awt.BorderLayout;
public class LayoutManager1 extends JFrame{
	public LayoutManager1()
	{
		super();
		setSize(400,100);
		getContentPane().setLayout(new BorderLayout());
		JLabel label1 = new JLabel ("My Name is:");
		getContentPane().add(label1, BorderLayout.NORTH);
		JLabel label2 = new JLabel ("Nadine");
		getContentPane().add(label2, BorderLayout.SOUTH);
		setTitle("second window");
		getContentPane().setBackground(Color.BLUE);
		//WindowDestroyer myListener = new WindowDestroyer();
		//addWindowListener(myListener);
	}
}

What is the problem???!!!
why it doesnt run?!?!!

thanks a lot!

[Maneesh Godbole]

Have you forgotten

public static void main(String args[])

[Campbell Ritchie]

Yes, she has forgotten it. I got it to work, but I am not sure I want code telling me I am called Nadine

import javax.swing.*;
import java.awt.Color;
import java.awt.BorderLayout;
public class LayoutManager1 extends JFrame{
	public LayoutManager1()
	{
		super();
		setSize(400,100);
		getContentPane().setLayout(new BorderLayout());
		JLabel label1 = new JLabel ("My Name is:");
		getContentPane().add(label1, BorderLayout.NORTH);
		JLabel label2 = new JLabel ("Nadine");
		getContentPane().add(label2, BorderLayout.SOUTH);
		setTitle("second window");
		getContentPane().setBackground(Color.BLUE);
		//WindowDestroyer myListener = new WindowDestroyer();
		//addWindowListener(myListener);
/*
 * You need the next line to make it close
 */
		this.setDefaultCloseOperation(EXIT_ON_CLOSE);
/*
 * That was it
 */
	}
	
	public static void main(String[] args)
	{
	    SwingUtilities.invokeLater(new Runnable()
	    {
    	        public void run()
    	        {
                    /*
                     * If you don't tell it to become visible, you will never see anything
                     */
    	            new LayoutManager1().setVisible(true);
                    /*
                     * Use setVisible last; by the time you get to setVisible here, the constructor has completed its work.
                     */
    	        }
	    }
	    );
	}//end main
}

It runs, but won't appear and won't close. You need code to make it visible (setVisible) and to set its default close operation. You can find more about that in the JFrame class. The strange contents of the main method are explained here. I know your lecturer won't believe you, but that is the correct way to start off a Swing app.

As I told you earlier, the getContentPane() calls are all unnecessary. Just write add() or setLayout(). You don't need to set BorderLayout on a JFrame; it defaults to BorderLayout. You can forget about setTitle if you pass the title to the constructor: super("Nadine's Frame");