dd
NAME: SUMEDH SANJAY RAUT
CLASS: CO5I(A)
ROLL NO: 532
SUBJECT: AJP(22517)
*PRATICAL NO :- 13
* Debug the following code entired the output of following code.
Code:
import java.awt.*;
import java.awt.event.*;
public class WindowDemo
{
Frame f;
WindowDemo()
{
f=new Frame("Window Adapter");
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
f.dispose();
}
});
f.setSize(400,400);
f.setVisible(true);
f.setLayout(null);
}
public static void main(String[] args)
{
new WindowDemo();
}
}
dd
Output:-
Exercise:-
Q.1) write a program to demostrate the use of windowAdapter class.
Code:-
import java.awt.*;
import java.awt.event.*;
public class WindowAdapterDemo extends Frame {
public WindowAdapterDemo() {
setTitle("WindowAdapter Example");
setSize(400, 300);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent we) {
System.out.println("Window is closing...");
dispose();
}
});
setLayout(new FlowLayout());
Label label = new Label("Close the window to trigger WindowAdapter.");
add(label);
}
public static void main(String[] args) {
WindowAdapterDemo window = new WindowAdapterDemo();
window.setVisible(true);
}
}
Output:-
dd
Q.2) write a program to demostrate the use of anonymous inner class.
Code:
import java.awt.*;
import java.awt.event.*;
public class AnonymousInnerClassDemo extends Frame {
public AnonymousInnerClassDemo() {
setTitle("Anonymous Inner Class Example");
setSize(300, 200);
setLayout(new FlowLayout());
Button button = new Button("Click Me");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.out.println("Button was clicked!");
}
});
add(button);
addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent we) {
System.out.println("Window is closing...");
dispose();
}
});
}
public static void main(String[] args) {
AnonymousInnerClassDemo demo = new AnonymousInnerClassDemo();
demo.setVisible(true);
}
}
dd
Output:
Q.3)write a java program using MouseMotionAdapter class to implement only oe
method mouseDragged().
Code:
import java.awt.*;
import java.awt.event.*;
public class MouseMotionAdapterDemo extends Frame {
private int x = 0;
private int y = 0;
public MouseMotionAdapterDemo() {
setTitle("MouseMotionAdapter Example");
setSize(400, 400);
setBackground(Color.RED);
addMouseMotionListener(new MouseMotionAdapter() {
@Override
public void mouseDragged(MouseEvent e) {
x = e.getX();
y = e.getY();
repaint();
}
});
addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
dispose();
}
});
}
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@Override
public void paint(Graphics g) {
g.setColor(Color.RED);
g.fillOval(x, y, 10, 10);
}
public static void main(String[] args) {
MouseMotionAdapterDemo window = new MouseMotionAdapterDemo();
window.setVisible(true);
}
}
Output:
