Event Listener

Action Listener
Bereaksi atas perubahan mouse atau atau keyboard.

Coding

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;


public class ThreadPertama {
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(300, 200);
frame.setLayout(new FlowLayout());
final JButton button = new JButton();
button.setText("Start!");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
new Thread() {
public void run() {
for (int i = 0; i < 50; i++) {
// system.out.println(i+"A");
button.setText(i + "A");
try {
Thread.sleep(300);
} catch (InterruptedException e) {
e.printStackTrace();
// TODO: handle exception
}
}
};
}.start();
}
});
frame.add(button);
final JButton button2 = new JButton();
button2.setText("Click!");
button2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
new Thread() {
public void run() {
for (int j = 0; j < 50; j++) {
// System.out.println(i + "A");
button2.setText(j + "B");
try {
Thread.sleep(300);
} catch (InterruptedException e) {
// TODO: handle exception
e.printStackTrace();
}
}
};
}.start();
}
});
frame.add(button2);
frame.setVisible(true);
}
}

Tampilan

Mouse Listener

Bereaksi atas pergerakan mouse. Di bawah ini adalah method-method MouseListener yang seharusnya digunakan dalam penerapan class.

Coding :

apabila button di akan diklik, button akan menjauh, karena tidak mau di klik :

import java.awt.FlowLayout;

import java.awt.event.MouseEvent;

import java.awt.event.MouseListener;

import java.util.Random;

import javax.swing.JButton;

import javax.swing.JFrame;

public class MyFrame {

public static void main(String[] args) {

final JFrame frame = new JFrame("Mouse Listener");

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setSize(300, 300);

frame.setLocationRelativeTo(null);

frame.setLayout(new FlowLayout());

final JButton button = new JButton("click");

button.addMouseListener(new MouseListener() {

@Override

public void mouseReleased(MouseEvent arg0) {

// TODO Auto-generated method stub

}

@Override

public void mousePressed(MouseEvent arg0) {

// TODO Auto-generated method stub

}

@Override

public void mouseExited(MouseEvent arg0) {

// TODO Auto-generated method stub

}

@Override

public void mouseEntered(MouseEvent arg0) {

// TODO Auto-generated method stub

Random random = new Random();

int x = Math.abs(random.nextInt(frame.getWidth()) - button.getWidth());

int y = Math.abs(random.nextInt(frame.getHeight()) - button.getHeight());

button.setLocation(x, y);

}

@Override

public void mouseClicked(MouseEvent arg0) {

// TODO Auto-generated method stub

}

});

frame.add(button);

frame.setVisible(true);

}

}

Tampilan

Mouse Motion Listener

Interface MouseMotionListener mendukung MouseListener. Menyediakan method-method yang akan memantau pergerakan mouse,seperti drag dan pemindahan mouse. MouseMotionListener mempunyai dua method untuk diimplementasikan.