DDA_algo

import java.awt.*;
import java.applet.*;
import java.lang.*;
public class DDA_algo extends Applet
{
int dx,dy,steps,x1,y1,x2,y2,x,y;
float xinc,yinc;
public void init()
{
this.setSize(1500,900);
x1=50;
y1=50;
x2=250;
y2=250;
dx=(x2-x1);
dy=(y2-y1);
}
public void paint(Graphics g)
{
if(dx>dy)
{
steps=Math.abs(dx);
}
else
{
steps=Math.abs(dy);
}
xinc=dx/steps;
yinc=dy/steps;
x=x1;
y=y1;
g.setColor(Color.CYAN);
g.fillOval(x,y,5,5);
try
{
for(int i=1;i<=steps;i++)
{
x=(int)(x+xinc);
y=(int)(y+yinc);
Thread.sleep(20);
g.fillOval(x,y,5,5);
}
}
catch(Exception e)
{
}
}
}