how can I create gui pop-ups

[r035198x]

You may (or may not) also find this article informative.

P.S Don't forget to use code tags when posting code.

[kenrocks]

can u please give me a brief example of how to use the show method.,......I still can't get a hold of the components of this method such as the invoker.waaaaaa a..plsss..help

[JosAH]

can u please give me a brief example of how to use the show method.,......I still can't get a hold of the components of this method such as the invoker.waaaaaa a..plsss..help

Try this in your actionPerformed method:

popup.show(this, 30, 10);

It shows the popup menu at location (30,10) in the frame. Make sure that you
fix the errors I described above as well.

kind regards,

Jos

[kenrocks]

Try this in your actionPerformed method:

popup.show(this, 30, 10);

It shows the popup menu at location (30,10) in the frame. Make sure that you
fix the errors I described above as well.

kind regards,

Jos

what does the "this" do?

[r035198x]

what does the "this" do?

That's the currently executing instance
May I suggest going through Sun's Java tutorial at this stage. There is no point in trying to create GUI programs before grasping the basic concepts of the language.

[kenrocks]

how come nothing happens?

[r035198x]

how come nothing happens?

You mean you see nothing? Well that depends on what your code is looking like now. e.g. Did you correct all the mistakes pointed to by Jos above?

P.S You won't be making those mistakes after reading that tutorial that I suggested above.

[JosAH]

how come nothing happens?

I don't think programming is for your because

1) you don't read the tips and hints given to you;
2) you don't read tutorials, you just blindly guess;
3) you're not willing to experiment a bit with your own code.

Here; try your (slightly modified) class:

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

public class Popup extends JPanel implements ActionListener {

private JButton jcomp1;
JPopupMenu popup = new JPopupMenu();
//Up a=new Up();
public Popup() {
//construct components
jcomp1 = new JButton ("Button 1");

//adjust size and set layout
setPreferredSize (new Dimension (150, 63));
setLayout (null);

//add components
add (jcomp1);

//set component bounds (only needed by Absolute Positioning)
jcomp1.setBounds (10, 15, 100, 20);
JMenuItem menuItem;

//Create the popup menu.
menuItem = new JMenuItem("A popup menu item");
jcomp1.addActionListener(this);
popup.add(menuItem);
menuItem = new JMenuItem("Another popup menu item");
popup.add(menuItem);

}
public void actionPerformed(ActionEvent e) {

	popup.show(this, 30, 10);
}


public static void main (String[] args) {
JFrame frame = new JFrame ("MyPanel");
frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add (new Popup());
frame.pack();
frame.setVisible (true);
}
}

I consider this thread closed after this spoonfeeding.

Jos (moderator)