import java.awt.*;
import java.applet.Applet;
public class siinus extends Applet{
	double x_id[];
	double y_id[];
	double x;
	double y;
	double x1;
	double y1;
	double k;
	int i;
	int j;
	
	public siinus(){
	x_id = new double[100];
		for(int k=0; k<100; k++){
			x_id[k]=Math.PI*8*0.01*k;
		}
	y_id = new double[100];
		for(int k=0; k<100; k++){
			y_id[k]=Math.sin(x_id[k]);
		}
	}


	public void paint(Graphics g){
		
		
		g.setColor(Color.black);
		for(int t=0; t<100; t++){
			for(int k=0; k<100; k++){
				x1=x_id[k]*25;
				if(k+t<=99){
					//System.out.println(t);
					//System.out.println(k);
					y1=y_id[k+t]*25;
					}
				if(k+t>99){
					y1=y_id[k-t]*25; 
				}
				i=(int)(x1);
				j=(int)(y1);
				g.fillOval(i,j+50,4,4);
			}
		try{Thread.sleep(200);}catch(Exception e){}
		g.setColor(Color.blue);
		g.fillRect(0,0,600,300);
		g.setColor(Color.black);
		
		if(t==49){t=0;}
		}
	
	}	
	
  	public static void main(String argumendid[]){
    		Frame f=new Frame("Esimene");
    		f.setSize(600, 300);
   		f.setBackground(Color.blue);
		f.add(new siinus());
    		f.setLocation(200, 100);
    		f.setVisible(true);
  }
}