Contoh Program Java Menggunakan Metoda Kelas Konkrit DefaultTableModel

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// Nama file : TabelPenjualanNotebook2.java
// Mendemontrasikan penggunaan beberapa metoda kelas DefaultTableModel

// Mengimpor kelas
import java.awt.*;
import java.awt.event.*;
import java.util.Vector;
import javax.swing.*;
import javax.swing.table.*;

// Deklarasi kelas
public class TabelPenjualanNotebook2 extends JFrame {

   // Membuat nama kolom tabel
   private String[] kolomTabel =
   {"Tipe", "Warna", "Sistem Operasi", "Jumlah Terjual"};

   // Membuat data tabel
   private Object[][] dataTabel = {
      {"Satellite L630-1031U", "Black", new Boolean(false), new Integer(3)},
      {"Satellite L645-1043XB", "Brown", new Boolean(true), new Integer(7)},
      {"Satellite L645-1078X", "Gray", new Boolean(true), new Integer(5)},
      {"Satellite C640-1010U", "Black", new Boolean(false), new Integer(4)},
      {"Satellite A665-10033D", "Black", new Boolean(true), new Integer(2)},
      {"Qosmio X500-D832", "Black", new Boolean(true), new Integer(4)},
      {"Portege T210-1014UR", "Red", new Boolean(true), new Integer(6)},
      {"Libretto W100-1002U", "Black", new Boolean(true), new Integer(1)}
   };

   // Membuat table model
   private DefaultTableModel tModel = new DefaultTableModel(dataTabel,
      kolomTabel);

   // Membuat tabel
   private JTable tabel = new JTable(tModel);

   // Membuat obyek check box
   private JCheckBox grsVertikal = new JCheckBox(
      "Tampilkan garis vertikal", true);
   private JCheckBox grsHorisontal = new JCheckBox(
      "Tampilkan garis Horisontal", true);

   // Membuat obyek button (tombol)
   private JButton tambahBaris = new JButton("Tambah baris");
   private JButton hapusBaris = new JButton("Hapus baris dipilih");
   private JButton tambahKolom = new JButton("Tambah kolom");

   // Membuat obyek combo box model
   private DefaultComboBoxModel cboModel = new DefaultComboBoxModel();

   // Membuat obyek combo box
   private JComboBox cboWarna = new JComboBox(cboModel);

   // Membuat list cell renderer
   private ButtonLabelRenderer renderer = new ButtonLabelRenderer();

   // Konstruktor tanpa argumen
   public TabelPenjualanNotebook2() {

      cboModel.addElement(new Object[] {Color.BLACK, "Black Color"});
      cboModel.addElement(new Object[] {Color.RED, "Red Color"});
      cboModel.addElement(new Object[] {Color.MAGENTA, "Magenta Color"});
      cboModel.addElement(new Object[] {Color.BLUE, "Blue Color"});
      cboModel.addElement(new Object[] {Color.ORANGE, "Orange Color"});

      cboWarna.setRenderer(renderer);
      cboWarna.setMaximumRowCount(3);

      // Menginisialisi tabel
      tabel.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
      tabel.setGridColor(Color.BLACK);
      tabel.setSelectionBackground(Color.YELLOW);
      tabel.setSelectionForeground(Color.RED);
      tabel.setRowSelectionAllowed(true);
      tabel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

      // Mengelompokkan obyek label dan combo box
      JPanel panel1 = new JPanel();
      panel1.setLayout(new BorderLayout(4, 0));
      panel1.add(new JLabel("Warna garis"), BorderLayout.LINE_START);
      panel1.add(cboWarna, BorderLayout.CENTER);

      // Mengelompokkan obyek check box
      JPanel panel2 = new JPanel();
      panel2.setLayout(new FlowLayout());
      panel2.add(grsVertikal);
      panel2.add(grsHorisontal);

      // Mengelompokkan obyek panel1 dan panel2
      JPanel panel3 = new JPanel();
      panel3.setLayout(new GridLayout(2, 1, 0, 0));
      panel3.add(panel1);
      panel3.add(panel2);

      // Mengelompokkan obyek tombol
      JPanel panel4 = new JPanel();
      panel4.setLayout(new GridLayout(1, 3));
      panel4.add(tambahBaris);
      panel4.add(hapusBaris);
      panel4.add(tambahKolom);

      getContentPane().add(panel3, BorderLayout.PAGE_START);
      getContentPane().add(new JScrollPane(tabel), BorderLayout.CENTER);
      getContentPane().add(panel4, BorderLayout.PAGE_END);

      // Penanganan event check box
      grsVertikal.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent ae) {
            tabel.setShowVerticalLines(grsVertikal.isSelected());
         }
      });

      grsHorisontal.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent ae) {
            tabel.setShowHorizontalLines(grsHorisontal.isSelected());
         }
      });

      // Penanganan event combo box
      cboWarna.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent ae) {
            Object[] duaObjek = (Object[])(cboWarna.getSelectedItem());
            tabel.setGridColor((Color)duaObjek[0]);
         }
      });

      // Penanganan event button
      tambahBaris.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent ae) {
   
            // Memastikan ada salah satu baris dipilih
            if (tabel.getSelectedRow() >= 0)
               tModel.insertRow(tabel.getSelectedRow(), new java.util.Vector());
            else
               // Bila tidak ada baris yang dipilih
               tModel.addRow(new java.util.Vector());
         }
      });

      hapusBaris.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent ae) {
            if (tabel.getSelectedRow() >= 0)
               tModel.removeRow(tabel.getSelectedRow());
            else
               JOptionPane.showMessageDialog(null,
                  "Pilih baris yang akan dihapus!", "Menghapus Baris",
                  JOptionPane.INFORMATION_MESSAGE);
         }
      });

      tambahKolom.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent ae) {
            String namaKolom = JOptionPane.showInputDialog("Nama kolom");
            tModel.addColumn(namaKolom, new java.util.Vector());
         }
      });
   }

   // Metoda main
   public static void main(String[] args) {
      TabelPenjualanNotebook2 frame = new TabelPenjualanNotebook2();
      frame.setTitle("Kelas TabelPenjualanNotebook2");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setSize(440, 250);
      frame.setVisible(true);
   }
}