File list (Check if you may need any files):
Exercise_4
..........\class
..........\.....\Catfish.class
..........\.....\HtmlAnchor.class
..........\.....\HtmlImage.class
..........\.....\HtmlPage.class
..........\.....\HtmlTable.class
..........\.....\Simulation.class
..........\.....\SimulationServlet.class
..........\.....\SimulationView.class
..........\content
..........\.......\blank.gif
..........\.......\CatFish-tired.gif
..........\.......\CatFish.gif
..........\.......\CreateFish.html
..........\.......\right-arrow.gif
..........\.......\Thumbs.db
..........\work
..........\....\Catfish.class
..........\....\Catfish.java