Proyek PBO_Kelas Read

package uts_pbo_2;

import java.awt.*;
import java.awt.event.*;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.sql.SQLException;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.*;

public class Read extends JFrame {

    Scanner input = new Scanner(System.in);
    JCheckBox cbox[];
    DataHandler data;
    private JRadioButton[] radioButton;
    JButton ok;
    ButtonGroup bg;
    String[] btnText = {"No Surat", "Perihal", "Penerima", "Pengirim", "Tanggal Kirim", "Tanggal Terima"};
    JPanel cpanel, opanel;
    String word = null;
    Surat key;

    Read() {
    }

    public Read(Frame owner) {
        Container content = getContentPane();
        setTitle("Read Mail");
        setSize(300, 300);
        setLocation(300, 300);
        content.setLayout(new BorderLayout());

        cpanel = new JPanel(new GridLayout(0, 1));
        cpanel.setBorder(BorderFactory.createTitledBorder("Cari Berdasarkan: "));

        bg = new ButtonGroup();
        radioButton = new JRadioButton[btnText.length];

        for (int i = 0; i < radioButton.length; i++) {
            radioButton[i] = new JRadioButton(btnText[i]);
//            radioButton[i].addItemListener(this);
            bg.add(radioButton[i]);
            cpanel.add(radioButton[i]);
        }
        ok = new JButton("OK");
        opanel = new JPanel();
        opanel.add(ok);

        content.add(cpanel, BorderLayout.CENTER);
        content.add(opanel, BorderLayout.SOUTH);

        ok.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                if (radioButton[0].isSelected()) {
                    data = new DataHandler();
                    try {

                        Surat surat = new Surat();
                        word = JOptionPane.showInputDialog("Masukkan Keyword: ");
                        surat.setSearch(word);
                        ArrayList test = data.searchNo(surat.getSearch());
                        for (int i = 0; i < test.size(); i++) {
                            DataHandler temp = (DataHandler) test.get(i);
                            JOptionPane.showMessageDialog(rootPane, temp.getNo());
                        }
                    } catch (SQLException ex) {
                        Logger.getLogger(KotakMasuk.class.getName()).log(Level.SEVERE, null, ex);
                    }
                } else if (radioButton[1].isSelected()) {
                    data = new DataHandler();
                    try {

                        Surat surat = new Surat();
                        word = JOptionPane.showInputDialog("Masukkan Keyword: ");
                        surat.setSearch(word);
                        ArrayList test = data.searchHal(surat.getSearch());
                        for (int i = 0; i < test.size(); i++) {
                            DataHandler temp = (DataHandler) test.get(i);
                            JOptionPane.showMessageDialog(rootPane, temp.getHal());
                        }
                    } catch (SQLException ex) {
                        Logger.getLogger(KotakMasuk.class.getName()).log(Level.SEVERE, null, ex);
                    }
                } else if (radioButton[2].isSelected()) {
                    data = new DataHandler();
                    try {

                        Surat surat = new Surat();
                        word = JOptionPane.showInputDialog("Masukkan Keyword: ");
                        surat.setSearch(word);
                        ArrayList test = data.searchPenerima(surat.getSearch());
                        for (int i = 0; i < test.size(); i++) {
                            DataHandler temp = (DataHandler) test.get(i);
                            JOptionPane.showMessageDialog(rootPane, temp.getPnrm());
                        }
                    } catch (SQLException ex) {
                        Logger.getLogger(KotakMasuk.class.getName()).log(Level.SEVERE, null, ex);
                    }
                } else if (radioButton[3].isSelected()) {
                    data = new DataHandler();
                    try {

                        Surat surat = new Surat();
                        word = JOptionPane.showInputDialog("Masukkan Keyword: ");
                        surat.setSearch(word);
                        ArrayList test = data.searchPengirim(surat.getSearch());
                        for (int i = 0; i < test.size(); i++) {
                            DataHandler temp = (DataHandler) test.get(i);
                            JOptionPane.showMessageDialog(rootPane, temp.getPkrm());
                        }
                    } catch (SQLException ex) {
                        Logger.getLogger(KotakMasuk.class.getName()).log(Level.SEVERE, null, ex);
                    }
                } else if (radioButton[4].isSelected()) {
                    data = new DataHandler();
                    try {

                        Surat surat = new Surat();
                        word = JOptionPane.showInputDialog("Masukkan Keyword: ");
                        surat.setSearch(word);
                        ArrayList test = data.searchTglSurat(surat.getSearch());
                        for (int i = 0; i < test.size(); i++) {
                            DataHandler temp = (DataHandler) test.get(i);
                            JOptionPane.showMessageDialog(rootPane, temp.getTglSurat());
                        }
                    } catch (SQLException ex) {
                        Logger.getLogger(KotakMasuk.class.getName()).log(Level.SEVERE, null, ex);
                    }
                } else{
                    data = new DataHandler();
                    try {

                        Surat surat = new Surat();
                        word = JOptionPane.showInputDialog("Masukkan Keyword: ");
                        surat.setSearch(word);
                        ArrayList test = data.searchNo(surat.getSearch());
                        for (int i = 0; i < test.size(); i++) {
                            DataHandler temp = (DataHandler) test.get(i);
                            JOptionPane.showMessageDialog(rootPane, temp.getTglTerima());
                        }
                    } catch (SQLException ex) {
                        Logger.getLogger(KotakMasuk.class.getName()).log(Level.SEVERE, null, ex);
                    }
                }
            }
        });
    }
}