Heh, udah lama gak pegang Java kyknya jadi bloon lagi neh <_ <
Ngerjain tugas Aplin yg sederhana aja butuh waktu 2 jam
itupun liat code-nya aja keliatan kyk bikinin orang baru belajar Java, hehehe

check it out:

[java]import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class tugas1 extends JFrame implements ActionListener {

static JButton btn1 = new JButton(”Hello”);
static JButton btn2 = new JButton(”World”);
static JButton btn3 = new JButton(”Everyone”);
JButton btnClose = new JButton(”Close”);
JFrame child = null;

public void showWindow(String str) {
child = new JFrame();
child.setTitle(str);
child.setLocation(200,200); child.setSize(150,150);
child.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
child.getContentPane().setLayout(new BorderLayout());
child.add(new JLabel(” “),BorderLayout.SOUTH);
child.add(new JLabel(” “),BorderLayout.EAST);
child.add(new JLabel(” “),BorderLayout.WEST);
child.add(new JLabel(” “),BorderLayout.NORTH);
JPanel pnl = new JPanel(new GridLayout(2,1));
child.add(pnl,BorderLayout.CENTER);
pnl.add(new JLabel(str,SwingConstants.CENTER));
pnl.add(btnClose);
btnClose.addActionListener(this);
child.setVisible(true);
}

tugas1() {
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.getContentPane().setLayout(new BorderLayout());
add(new JLabel(” “),BorderLayout.SOUTH);
add(new JLabel(” “),BorderLayout.EAST);
add(new JLabel(” “),BorderLayout.WEST);
add(new JLabel(” “),BorderLayout.NORTH);
JPanel pnl = new JPanel(new GridLayout(5,1));
add(pnl,BorderLayout.CENTER);
pnl.add(btn1); pnl.add(new JLabel(”")); pnl.add(btn2); pnl.add(new JLabel(”")); pnl.add(btn3);
btn1.addActionListener(this); btn2.addActionListener(this); btn3.addActionListener(this);
}

public static void main(String[] args) {
tugas1 app = new tugas1();
app.setTitle(”Aplikasi Internet”);
app.setLocation(100,100); app.setSize(200,200);
app.setVisible(true);
}

public void actionPerformed(ActionEvent event) {
Object source = event.getSource();
if (source==btn1) showWindow(btn1.getText());
else if(source==btn2) showWindow(btn2.getText());
else if(source==btn3) showWindow(btn3.getText());
else if(source==btnClose) child.dispose();
}

}[/java]