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Drawing Pad Using Applet - Java
1963    Arnab De    04/07/2018

Drawing Pad Using Applet

To create a drawing pad using applet we have to import java.awt.*; java.awt.event.*; java.applet.*; packages. Now implements MouseMotionListener, MouseListener interfaces and overrides the methods mouseMoved(), mouseDragged(), mouseClicked(), mousePressed(), mouseReleased(), mouseEntered(), mouseExited(). Now draw line from the old mouse position to current mouse position. this code written in mouseDragged() method.

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import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class A extends Applet implements MouseMotionListener,MouseListener{
	float X,Y,X1,Y1;
	public void init(){
		addMouseListener(this);
		addMouseMotionListener(this);
	}
	public void mouseMoved(MouseEvent e){}
	public void mouseDragged(MouseEvent e){
		Graphics g=getGraphics();
		X1=e.getX();
		Y1=e.getY();
		g.setColor(Color.red);
		g.drawLine((int)X,(int)Y,(int)X1,(int)Y1);
		X=X1;
		Y=Y1;
	}
	public void mouseClicked(MouseEvent e){}
	public void mousePressed(MouseEvent e){
		X=e.getX();
		Y=e.getY();
	}
	public void mouseReleased(MouseEvent e){}
	public void mouseEntered(MouseEvent e){}
	public void mouseExited(MouseEvent e){}
}
Check A Date Valid or not Object oriented Basic theory
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Author Details
Arnab De
I have over 16 years of experience working as an IT professional, ranging from teaching at my own institute to being a computer faculty at different leading institute across Kolkata. I also work as a web developer and designer, having worked for renowned companies and brand. Through tutorialathome, I wish to share my years of knowledge with the readers.
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