a layout question (swing classes) --> (I' m learning ...)

Hi,

I can' t understand how to handle the layouts with the swing classes.

I need to be able to put different objects (JButton, JLabel, ...) on different locations on an interface, and I can' t understand how it is done.

I have I code example that I understand. Can somebody give me a better version where the layout has changed.

It looks lik this:

BUTTON
BUTTON
TEXTFIELD

I would like to have:

BUTTON LABEL TEXTFIELD
BUTTON
BUTTON
BUTTON
BUTTON

Thanks for looking at my problem ....

this is the code that I have:

Code:

---


//v 1.3
import javax.swing.*;         
import java.awt.*;
import java.awt.event.*;

public class SwingApplication {

        public Component createOtherComponents() {
               
                final JTextField textField = new JTextField(10);
               
        JButton Addbutton = new JButton("ADD");
        JButton DeleteButton = new JButton("DELETE");
       
       
       
        Addbutton.setMnemonic(KeyEvent.VK_I);
        Addbutton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {

                textField.setText(textField.getText() + "test" + "\n");

            }
           
 
        });
       
        DeleteButton.setMnemonic(KeyEvent.VK_I);
        DeleteButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {

                textField.setText("");

            }
           
 
        });


        JPanel pane = new JPanel();

        pane.setBorder(BorderFactory.createEtchedBorder() //right
                                        );
        pane.setLayout(new GridLayout(0, 1));
        pane.add(Addbutton);
        pane.add(DeleteButton);
        pane.add(textField);


        return pane;
    }
   

    public static void main(String[] args) {
        try {
            UIManager.setLookAndFeel(
                UIManager.getCrossPlatformLookAndFeelClassName());
        } catch (Exception e) {}

        JFrame frame = new JFrame("TestApplication");
        SwingApplication app = new SwingApplication();

        Component Othercontents = app.createOtherComponents();
       
               
        frame.getContentPane().add(Othercontents);
       

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
    }
   
   
}

---

goto the sun tutorial first

It really matters how you want the components laid out. Panel uses the FlowLayout as it's default layout manager. Container uses the BorderLayout for it's default manger. You would probably want to use the GridLayout Manager for what you want to do.

Instead of doing this.
frame.getContentPane().add(Othercontents);

You could do.

JFrame jf = new JFrame();
Container c = jf.getContentPane;
c.setLayoutManager(new GridLayout(rows,cols));

You might have some component sizing issues because if
i am not mistaken components laid out with a GridLayout
fill the entire area of their encompassing cell. Also when
the frame is resized the components will stretch with the frame
so i would set jf.setResizable(false);