import javax.microedition.lcdui.*;

class MyMissile extends Sprite{

  public MyMissile() {
    height = 6 ;
    width  = 2 ;
  }
  void doMove(){
    if(this.isAlive){
      y = y - height -1 ;
    }
  }
 void doDraw(Graphics g){
   if(this.isAlive){
     g.setColor(0);
     g.fillRect(x,y,width,height);
 }
 }
}