TesGridBag.java (PemrogramanBerorientasi Objek)

TesGridBag.java

import java.awt.*;

import java.awt.event.*;

public class TesGridBag extends Frame {

  Button b1, b2, b3, b4, b5, b6, b7, b8;

  public static void main (String[] args) {

    TesGridBag apl = new TesGridBag();

    }

    public TesGridBag(){

      super("Tes GridBagLayout");

      setSize(300,250);

      GridBagLayout gb = new GridBagLayout();

      setLayout(gb);

      GridBagConstraints gbc = new GridBagConstraints();

      gbc.fill = GridBagConstraints.BOTH;

      //--- Baris Pertama

      buatTombol(b1, "Satu", gb, gbc,

                                0, 0, 2, 1);

      buatTombol(b2, "Dua", gb, gbc,

                                2,0,1,1);

      //--- Baris Kedua

      buatTombol(b3, "Tiga", gb, gbc,

                                0,1,1,1);

      buatTombol(b4, "empat", gb, gbc,

                                1,1,1,1);

      buatTombol(b5, "Lima", gb, gbc,

                                2,1,1,2);

      //---Baris ketiga

      buatTombol(b6, "enam", gb, gbc,

                                0,2,1,1);

      buatTombol(b7, "Tujuh", gb, gbc,

                                1,2,1,1);

      //---Baris empat

      buatTombol(b8, "Exit", gb, gbc,

                                0,4,3,1);

      addWindowListener(

                            new TesGridBag.PenanganKejadian());

                              show();

                              }

      public void buatTombol(Button b,

                                                    String judul,

                                                    GridBagLayout gb,

                                                    GridBagConstraints gbc,

                                                    int kolom, int baris,

                                                    int lebar, int tinggi) {

      b = new Button(judul);

      b.addActionListener(new PenangananTombol());

      gbc.gridx = kolom;

      gbc.gridy = baris;

      gbc.gridwidth = lebar;

      gbc.gridheight = tinggi;

      gb.setConstraints(b, gbc);

      add(b);

      }

class PenangananTombol implements ActionListener {

             public void actionPerformed(ActionEvent e) {

                String status = e.getActionCommand();

                if (status.equals("Exit")) {

                    System.exit(0);

                }

             }

}

class PenanganKejadian extends WindowAdapter {

                public void windowClosing(WindowEvent e) {

                                       System.exit(0);

                                       }

                        }

}

HASILNYA :

Jika

      gbc.fill = GridBagConstraints.BOTH;

diganti menjadi

      gbc.fill = GridBagConstraints.HORIZONTAL;

HASILNYA :

Jika

      gbc.fill = GridBagConstraints.BOTH;

diganti menjadi

      gbc.fill = GridBagConstraints.VERTICAL;

HASILNYA :

jika di klik tombol exit maka keluar ..