Program Table dengan ComboBox

ComboBoxTable.java

import java.awt.EventQueue;
import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.EmptyBorder;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.ImageIcon;
import javax.swing.JLabel;

@SuppressWarnings("serial")
public class ComboBoxTable extends JFrame 
{

	private JPanel contentPane;
	private JTable tabel;
	DefaultTableModel tabelModel;
	String[] field = {"ID","Nama","Status Pegawai"};
	String[][] data = {{"P01","Resa",null},{"P02","Candra",null},{"P03","Ayu",null},{"P04","Dian",null},{"P05","Dita",null}};
	@SuppressWarnings("rawtypes")
	private JComboBox cbPegawai;
	private JButton btnTampilData;
	private JLabel lblBackground;
	/**
	 * Create the frame.
	 */
	@SuppressWarnings({ "rawtypes", "unchecked" })
	public ComboBoxTable() 
	{
		setResizable(false);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 640, 326);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		contentPane.setLayout(null);
		cbPegawai = new JComboBox();
		cbPegawai.addItem("Tetap");
		cbPegawai.addItem("Kontrak");
		JScrollPane scrollPane = new JScrollPane();
		scrollPane.setBounds(54, 12, 531, 209);
		contentPane.add(scrollPane);
		setLocationRelativeTo(null);
		
		tabelModel = new DefaultTableModel(data,field);
		tabel = new JTable();
		tabel.setModel(tabelModel);
		tabel.getColumnModel().getColumn(2).setCellEditor(new DefaultCellEditor(cbPegawai));
		scrollPane.setViewportView(tabel);
		
		btnTampilData = new JButton("Tampilkan Data Tabel");
		btnTampilData.setIcon(new ImageIcon("/home/resa/Aplikasi Java/SwingComponents/src/Gambar/tampilData.png"));
		btnTampilData.addActionListener(new ActionListener() 
		{
			public void actionPerformed(ActionEvent act) 
			{
				int pilih = tabel.getSelectedRow();
				if(pilih<0)
				{
					return;
				}
				String id = (String) tabelModel.getValueAt(pilih, 0);
				String nama = (String) tabelModel.getValueAt(pilih, 1);
				String pegawai = (String) tabelModel.getValueAt(pilih, 2);
				JOptionPane.showMessageDialog(null,"No.ID : " + id + " \n " +"Nama : " + nama + " \n " + "Pegawai : " + pegawai);
			}
		});
		btnTampilData.setBounds(193, 233, 239, 51);
		contentPane.add(btnTampilData);
		
		lblBackground = new JLabel("");
		lblBackground.setIcon(new ImageIcon("/home/resa/Aplikasi Java/SwingComponents/src/Gambar/whiteGradient.jpg"));
		lblBackground.setBounds(0, 0, 638, 296);
		contentPane.add(lblBackground);
	}
	
	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() 
		{
				public void run() 
				{
					try 
					{
						UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
						ComboBoxTable frame = new ComboBoxTable();
						frame.setVisible(true);
					} 
					catch (UnsupportedLookAndFeelException e) {
					} 
					catch (ClassNotFoundException e){
					} 
					catch (InstantiationException e) {
					} 
					catch (IllegalAccessException e) {
					}
				}
			});
	}
}