blood.java

blood bank system to handale

import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;
import java.applet.*;

//<Applet code="blood.class" width=100 height=100></Applet>
public class blood extends Applet implements Runnable
{
		Color c1,c2,c3;
		Thread t1,t2,t3;
		Image img;
	
	public void init()
		{
		t1=new Thread(this);
		t1.start();
		t2=new Thread(this);
		t2.start();
		t3=new Thread(this);
		t3.start();		
		//img=getImage(getCodeBase(),"C:/project1/NABKGND.JPG");
		}
		
		public void paint(Graphics g)
		{
		//setBackground("C:/project1/NABKGND.JPG");
		g.drawImage(img,10,10,this);
		setBackground(Color.white);
		g.setColor(c3);
		g.fillArc(15,150,40,60,-60,-60);
		g.setColor(c2);
		g.fillArc(10,80,50,70,-60,-60);
		g.setColor(c1);
		g.fillArc(5,5,60,90,-60,-60);
		
		}
		public void update(Graphics g)
		{
		paint(g);
		}
		public void run()
		{
		Color cc[]={Color.red,Color.white};
		while (true)
		{
		try
			{
			c1=cc[0];
			c2=cc[1];
			c3=cc[1];
			t1.sleep(500);
			}
		catch(Exception e)
			{
			}
		repaint();
		try
			{
			c1=cc[1];
			c2=cc[0];
			c3=cc[1];
			t2.sleep(500);
			}
		catch(Exception e)
			{
			}
		repaint();
		try
			{
			c1=cc[1];
			c2=cc[1];
			c3=cc[0];
			t3.sleep(500);
			}
		catch(Exception e)
			{
			}
		repaint();			
}
}
}