GUI - How do i merge two diffrent layout managers into one tab?

Question

Hello
I want to create a cellphone, and when you click a button it will be displayed in a textfield
the buttons are in a grid layout (4,3) and the textfield is in a border layout (NORTH)
I have the layouts in two seperate tabs, but how do i merge two diffrent layouts in to one tab ?
textfield:
package guitelefon;
import java.awt.*;
import javax.swing.*;
public class BorderPanel extends JPanel
   public BorderPanel()
      setLayout (new BorderLayout());
      setBackground (Color.green);
      JTextField output = new JTextField(5);
      add (output, BorderLayout.NORTH);
}Buttons:
package guitelefon;
import java.awt.*;
import javax.swing.*;
public class GridPanel extends JPanel
    public GridPanel()
      setLayout (new GridLayout (4, 3));
      setBackground (Color.green);
      JButton b1 = new JButton ("1");
      JButton b2 = new JButton ("2");
      JButton b3 = new JButton ("3");
      JButton b4 = new JButton ("4");
      JButton b5 = new JButton ("5");
      JButton b6 = new JButton ("6");
      JButton b7 = new JButton ("7");
      JButton b8 = new JButton ("8");
      JButton b9 = new JButton ("9");
      JButton bs = new JButton ("*");
      JButton b0 = new JButton ("0");
      JButton bf = new JButton ("#");
      add (b1);
      add (b2);
      add (b3);
      add (b4);
      add (b5);
      add (b6);
      add (b7);
      add (b8);
      add (b9);
      add (bs);
      add (b0);
      add (bf);
}driver:
package guitelefon;
//  LayoutDemo.java       Java Foundations
//  Demonstrates the use of flow, border, grid, and box layouts.
import javax.swing.*;
public class LayoutDemo
     public static void main (String[] args)
      JFrame frame = new JFrame ("Cellhpone");
      frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
      JTabbedPane tp = new JTabbedPane();
      tp.addTab ("Grid", new GridPanel());
      tp.addTab ("Border", new BorderPanel());
      frame.getContentPane().add(tp);
      frame.pack();
      frame.setVisible(true);
}

Answer 1

a simple example with compilable code:
import java.awt.BorderLayout;
import java.awt.GridLayout;
import javax.swing.*;
public class Main {
  public static void main(String[] args) {
    JFrame frame = new JFrame("Cellhpone");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel panel = new JPanel(new BorderLayout());
    panel.add(new FooPanel(), BorderLayout.CENTER);
    panel.add(new BarPanel(), BorderLayout.NORTH);
    frame.getContentPane().add(panel);
    frame.pack();
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
class FooPanel extends JPanel {
  private static final String[][] BTN_STRINGS = {
    {"1", "2", "3"},
    {"4", "5", "6"},
    {"7", "8", "9"},
    {"*", "0", "#"}};
  public FooPanel() {
    setLayout(new GridLayout(BTN_STRINGS.length, BTN_STRINGS[0].length, 5, 5));
    for (int row = 0; row < BTN_STRINGS.length; row++) {
      for (int col = 0; col < BTN_STRINGS[row].length; col++) {
        JButton btn = new JButton(BTN_STRINGS[row][col]);
        add(btn);
class BarPanel extends JPanel {
  private JTextField field = new JTextField();
  public BarPanel() {
    setLayout(new BorderLayout());
    add(field, BorderLayout.CENTER);
}Edited by: Encephalopathic on Oct 29, 2009 7:56 AM