import java.awt.*;
import java.applet.*;

public class ParamDemo extends Applet
  {
    String BookTitle;
    String Authors;
    String Chapter;

    public void init()
      {
        BookTitle = getParameter("BookTitle");
        if (BookTitle == null)
          BookTitle = "Unknown";

        Authors = getParameter("BookAuthors");
        if (Authors == null)
          Authors = "Unknown";

        Chapter = getParameter("Chapter");
        if (Chapter == null)
          Chapter = "Unknown";
      }

    public void paint(Graphics g)
      {
         g.drawString("Book Title: " + BookTitle, 5, 15);
         g.drawString("Authors: " + Authors, 5, 45);
         g.drawString("Chapter: " + Chapter, 5, 75);
      }
  }