Home Java Example Java Awt Adapters Example

Adapters Example
Posted on: December 18, 2008 at 12:00 AM

In the following program code, the adapter class has been used. This class has been used as an anonymous inner class to draw a rectangle within an applet.

Adapters Example

In the following program code, the adapter class has been used. This class has been used as an anonymous inner class to draw a rectangle within an applet. This example demonstrates the functionality of the mouse press. That is on every click of the mouse from top left corner, we get a rectangle on the release of the bottom right.

The following program demonstrates the functionality of adapter class.


import java.applet.*;

import java.awt.*; 

import java.awt.event.*; 



public class AdapterDemo extends Applet{

  public void init(){

  addMouseListener(

  new MouseAdapter(){

  int topX, bottomY;

  public void mousePressed(MouseEvent me){

  topX = me.getX();

  bottomY = me.getY();

  }

  public void mouseReleased(MouseEvent me){

  Graphics g = AdapterDemo.this.getGraphics();

  g.drawRect(topX, bottomY, me.getX()-topX, me.getY()-bottomY);

  }

  });

  }

}

Output of the program:

C:\newprgrm>javac AdapterDemo.java

C:\newprgrm>appletviewer AdapterDemo.html

C:\newprgrm>

Download this example.

Related Tags for Adapters Example:
c, class, applet, sed, apple, this, app, anonymous, with, ada, program, to, rectangle, adapter, draw, ram, raw, angle, e, it, apt, use, in, no, as, m, thin, let, inner, ad, cl, pro, pp, s, rect, ee, is, ha, ll, follow, cod, code, wing, s, s, th, ap, ple, pl, pr, ode, on, ogr, ol, o, non

«Previous Index Next»