import javax.microedition.lcdui.*;


public class MyCanvas extends Canvas implements Runnable
{
int x, y , l = 10, count;
int[] trajectoryX = new int[]{0, 100};
int[] trajectoryY = new int[]{0, 0};

public MyCanvas()
{
super();
}

public void start()
{
Thread thread = new Thread(this);
thread.start();
}



public void run()
{
for(count=0;count<=trajectoryX.length;count++)
                  {
repaint();
                  x=trajectoryX[count];
                  y=trajectoryY[count];
                  try{
Thread.sleep(250);
}
catch(java.lang.InterruptedException zxz){
}
                  } 

}




public void paint(Graphics g)
{
g.setColor(255,255,255);
g.fillRect(0,0,getWidth(),getHeight());

g.setColor(0,0,0);
g.fillRect(x,y,l,l);

}



}