// CodeBase.java

import java.awt.Graphics;
import java.applet.Applet;
import java.net.*;
import java.io.*;

public class CodeBase extends Applet {
    double f(double x) {
	double vl=0;
        for (int i=1, j=1; i < 17; i+=2) {
	  vl += j* ( Math.cos(i*x/50.0) / i );
	  j*=-1;
	}
        return vl*60+200;
    }
    public void paint(Graphics g) {
        for (int x = 0 ; x < getSize().width ; x+=1) {
	    g.drawLine(x, (int)f(x), x + 1, (int)f(x + 1));
        }
    try
    {URL testRead = new URL(getCodeBase(),"data");
    String url	= testRead.toString();
    BufferedReader in = new BufferedReader(new InputStreamReader(testRead.openStream()));
    String buffer; int ypos=20;
    g.drawString(url,0,10);
    while (!(null==(buffer=in.readLine()))) {g.drawString(buffer,0,ypos); ypos+=10;}
    }
    catch(MalformedURLException e)	{System.out.println("Failed to create URL:\n" + e);}
    catch(IOException e)		{System.out.println("File error:\n" + e);}
    }
}