Membuat Aplikasi Browser Menggunakan Java

Kali ini kita akan mencoba untuk membuat browser sederhana… browsernya emang ga keren-keren amat.. tapi lumayan lah buat percobaan..hehehe… walaupun aga sedikit ribet dan pusing (maklum bukan buatan saya), tapi kita harus tetap semangat untuk membuat program ini :p..
ni contoh Browsernya

gambar1. browser sederhana

import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JRadioButton;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JTextPane;

public class MyGoogle {
public static void main(String[] args) {
final JFrame frame = new JFrame();
frame.setSize(450, 200);
frame.setTitle(“My Google: ” + frame.getWidth());
//        frame.setSize(450, 200);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
frame.setAlwaysOnTop(true);
frame.getContentPane().setBackground(Color.DARK_GRAY);
// frame.setUndecorated(true);
frame.setLocationRelativeTo(null);
frame.setLayout(new FlowLayout());
final JLabel label = new JLabel(“ENTER  THE  URL”);
label.setFont(new Font(“”, 10, 40));// 10->12, 40->80
label.setForeground(Color.MAGENTA);
frame.add(label);
final JTextField field = new JTextField(25);
field.setToolTipText(“http://www.facebook.com”);
frame.add(field);
JButton button = new JButton(“Search !”);
button.setForeground(Color.BLACK);
button.setBackground(Color.ORANGE);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
if (field.getText().equals(“”)) {
System.out.println(“tidak ada teks yang ditulis!”);
// JOptionPane.showConfirmDialog(frame, label, “nothing”,
// 1);
JOptionPane.showMessageDialog(frame, label,
“Judul Pesannya”, 1);// —> maksudnya 0=x, 1=i,
// 2=!, 3=?
} else {
// frame.setVisible(false);
JFrame frame2 = new JFrame(“Frame Hasil”);
// frame2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame2.setSize(600, 400);
frame2.setLocationRelativeTo(frame);
final JTextPane textPane = new JTextPane();
final JScrollPane scrollPane = new JScrollPane(textPane);
panggilKoneksi(field, textPane);
frame2.add(scrollPane);
frame2.setVisible(true);
}
}
private void panggilKoneksi(final JTextField field,    final JTextPane textPane) {
try {
URL url = new URL(field.getText());
URLConnection con = url.openConnection();
InputStream is = con.getInputStream();
ByteArrayOutputStream os = new ByteArrayOutputStream();
byte[] b = new byte[10];
int len;
while ((len = is.read(b, 0, b.length)) != -1) {
os.write(b, 0, len);
}
textPane.setText(new String(os.toByteArray()));
os.close();
is.close();
} catch (MalformedURLException e) {
// e.printStackTrace();
// System.out.println(“terjadi kesalahan penulisan url!”);
JLabel label2 = new JLabel(“Salah Tulis di URL.”);
JOptionPane.showMessageDialog(frame, label2,
“Kesalahan Tulis”, 1);
} catch (IOException e) {
// e.printStackTrace();
// System.out.println(“terjadi kesalahan penulisan url!”);
JLabel label3 = new JLabel(“Salah Tulis di URL ini.”);
JOptionPane.showMessageDialog(frame, label3,
“Kesalahan Tulis”, 0);
}
}
});
frame.add(button);
JRadioButton radioButton = new
JRadioButton(” penelusuran dengan web “);
frame.add(radioButton);
JRadioButton radioButton2 = new
JRadioButton(” penelusuran dengan gambar “);
frame.add(radioButton2);
JRadioButtonMenuItem item = new JRadioButtonMenuItem(“choose 1″);
item.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
System.out.println(“helooo…”);
}
});
frame.add(item);
JRadioButtonMenuItem item2 = new JRadioButtonMenuItem(“choose 2″);
item2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
System.out.println(“test….”);
}
});
frame.add(item2);
JRadioButtonMenuItem item3 = new JRadioButtonMenuItem(“choose 3″);
item3.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
System.out.println(“test heloo..”);
}
});
frame.add(item3);
JRadioButtonMenuItem item4 = new JRadioButtonMenuItem(“choose 4″);
item4.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
System.out.println(“terima kasih..”);
System.exit(0);
}
});
frame.add(item4);
frame.setVisible(true);
}
}