JP-A

 import java.awt.*;    

import java.awt.event.*; 

public class MouseMotionAdapterExample extends MouseMotionAdapter {     

Frame f;  

MouseMotionAdapterExample() {    

f = new Frame ("Mouse Motion Adapter");    

 f.addMouseMotionListener (this);   

 f.setSize (300, 300);    

        f.setLayout (null);    

        f.setVisible (true);    

    } 

public void mouseDragged (MouseEvent e) {    

  Graphics g = f.getGraphics();    

 g.setColor (Color.ORANGE);    

 g.fillOval (e.getX(), e.getY(), 20, 20);    

}    

public static void main(String[] args) {    

    new MouseMotionAdapterExample();    

}    

}    

------

import java.awt.*;    

import java.awt.event.*; 

public class KeyAdapterExample extends KeyAdapter {    

Label l;    

    TextArea area;    

    Frame f; 

KeyAdapterExample() {    

  f = new Frame ("Key Adapter");    

 l = new Label();    

 l.setBounds (20, 50, 200, 20); 

area = new TextArea(); 

 area.setBounds (20, 80, 300, 300);   

area.addKeyListener(this);   

 f.add(l);  

f.add(area);

 f.setSize (400, 400);    

        f.setLayout (null);    

        f.setVisible (true);    

    }    

 public void keyReleased (KeyEvent e) {    

String text = area.getText();   

 String words[] = text.split ("\\s");    

l.setText ("Words: " + words.length + " Characters:" + text.length());    

    }    

   public static void main(String[] args) {    

        new KeyAdapterExample();    

    }    

}     

--------

import java.awt.*;    

import java.awt.event.*;    

  

public class MouseAdapterExample extends MouseAdapter {    

    Frame f;    

    MouseAdapterExample() {    

        f = new Frame ("Mouse Adapter");    

        f.addMouseListener(this);     

        f.setSize (300, 300);    

        f.setLayout (null);    

        f.setVisible (true);    

    }    

public void mouseClicked (MouseEvent e) {    

        Graphics g = f.getGraphics();    

        g.setColor (Color.BLUE);    

        g.fillOval (e.getX(), e.getY(), 30, 30);    

    }    

public static void main(String[] args) {    

    new MouseAdapterExample();    

}    

}    

------------

import java.awt.*;    

import java.awt.event.*;    

  

public class AdapterExample {      

    Frame f;    

    AdapterExample() {      

        f = new Frame ("Window Adapter");      

        f.addWindowListener (new WindowAdapter() {    

            public void windowClosing (WindowEvent e) {    

                f.dispose();    

            }    

        });   

        f.setSize (400, 400);    

        f.setLayout (null);    

        f.setVisible (true);    

    }      

public static void main(String[] args) {    

    new AdapterExample();    

}    

}   

----------

import java.awt.*;  

import java.awt.event.*;  

class AEvent extends Frame implements ActionListener{  

TextField tf;  

AEvent(){  

tf=new TextField();  

tf.setBounds(60,50,170,20);  

Button b=new Button("click me");  

b.setBounds(100,120,80,30);    

b.addActionListener(this);  

add(b);add(tf);  

setSize(300,300);  

setLayout(null);  

setVisible(true);  

}  

public void actionPerformed(ActionEvent e)

{  

tf.setText("Welcome");  

}  

public static void main(String args[]){  

new AEvent();  

}  

}  

---------

import java.awt.*;    

import java.awt.event.*; 

public class KeyListenerExample extends Frame implements KeyListener {      

 Label l;    

    TextArea area;    

    KeyListenerExample() {      

        l = new Label();      

        l.setBounds (20, 50, 100, 20);    

        area = new TextArea();    

        area.setBounds (20, 80, 300, 300);      

        area.addKeyListener(this);    

        add(l);  

add(area);      

        setSize (400, 400);    

        setLayout (null);    

        setVisible (true);    

    }      

    public void keyPressed (KeyEvent e) {    

        l.setText ("Key Pressed");    

    }      

    public void keyReleased (KeyEvent e) {    

        l.setText ("Key Released");    

    }     

    public void keyTyped (KeyEvent e) {    

        l.setText ("Key Typed");    

    }    

    public static void main(String[] args) {    

        new KeyListenerExample();    

    }    

}   

---------

import java.awt.*;  

import java.awt.event.*;  

public class MouseListenerExample extends Frame implements MouseListener{  

    Label l;  

    MouseListenerExample(){  

        addMouseListener(this);  

          

        l=new Label();  

        l.setBounds(20,50,100,20);  

        add(l);  

        setSize(300,300);  

        setLayout(null);  

        setVisible(true);  

    }  

    public void mouseClicked(MouseEvent e) {  

        l.setText("Mouse Clicked");  

    }  

    public void mouseEntered(MouseEvent e) {  

        l.setText("Mouse Entered");  

    }  

    public void mouseExited(MouseEvent e) {  

        l.setText("Mouse Exited");  

    }  

    public void mousePressed(MouseEvent e) {  

        l.setText("Mouse Pressed");  

    }  

    public void mouseReleased(MouseEvent e) {  

        l.setText("Mouse Released");  

    }  

public static void main(String[] args) {  

    new MouseListenerExample();  

}  

}  


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