Event Listener adalah class yang mengimplementasikan interface <type>Listener.
Berikut contoh dari sintax diatas :
package testjeni2;
import java.awt.*;
import java.awt.event.*;
public class MouseEventsDemo extends Frame implements
MouseListener, MouseMotionListener {
TextField tf;
public MouseEventsDemo(String title){
super(title);
tf = new TextField(60);
addMouseListener(this);
}
public void launchFrame() {
/* Menambah komponen pada frame */
add(tf, BorderLayout.SOUTH);
setSize(300,300);
setVisible(true);
}
public void mouseClicked(MouseEvent me) {
String msg = "Mouse clicked.";
tf.setText(msg);
}
public void mouseEntered(MouseEvent me) {
String msg = "Mouse entered component.";
tf.setText(msg);
}
public void mouseExited(MouseEvent me) {
String msg = "Mouse exited component.";
tf.setText(msg);
}
public void mousePressed(MouseEvent me) {
String msg = "Mouse pressed.";
tf.setText(msg);
}
public void mouseReleased(MouseEvent me) {
String msg = "Mouse released.";
tf.setText(msg);
}
public void mouseDragged(MouseEvent me) {
String msg = "Mouse dragged at " + me.getX() + "," +
me.getY();
tf.setText(msg);
}
public void mouseMoved(MouseEvent me) {
String msg = "Mouse moved at " + me.getX() + "," +
me.getY();
tf.setText(msg);
}
public static void main(String args[]) {
MouseEventsDemo med = new MouseEventsDemo("Mouse Events Demo");
med.launchFrame();
}
}
import java.awt.*;
import java.awt.event.*;
public class MouseEventsDemo extends Frame implements
MouseListener, MouseMotionListener {
TextField tf;
public MouseEventsDemo(String title){
super(title);
tf = new TextField(60);
addMouseListener(this);
}
public void launchFrame() {
/* Menambah komponen pada frame */
add(tf, BorderLayout.SOUTH);
setSize(300,300);
setVisible(true);
}
public void mouseClicked(MouseEvent me) {
String msg = "Mouse clicked.";
tf.setText(msg);
}
public void mouseEntered(MouseEvent me) {
String msg = "Mouse entered component.";
tf.setText(msg);
}
public void mouseExited(MouseEvent me) {
String msg = "Mouse exited component.";
tf.setText(msg);
}
public void mousePressed(MouseEvent me) {
String msg = "Mouse pressed.";
tf.setText(msg);
}
public void mouseReleased(MouseEvent me) {
String msg = "Mouse released.";
tf.setText(msg);
}
public void mouseDragged(MouseEvent me) {
String msg = "Mouse dragged at " + me.getX() + "," +
me.getY();
tf.setText(msg);
}
public void mouseMoved(MouseEvent me) {
String msg = "Mouse moved at " + me.getX() + "," +
me.getY();
tf.setText(msg);
}
public static void main(String args[]) {
MouseEventsDemo med = new MouseEventsDemo("Mouse Events Demo");
med.launchFrame();
}
}
Hasil dari sintax diatas sbb :
Demikian hasilnya, semoga dapat bermanfaat.
Terima Kasih
sumber JENI
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