Lab 9: A web browser

In this lab and project, you will write a web-browser. It won't be full-featured, but it will have an interesting feature: It will display text in two panes (like a book), controlled by a single scroll bar.

There are several big steps in this project, and you should work on these one at a time and confirm they work before you go on.

• Reading a specified string from a textfield by which the user indicates a URL.
• Grabbing that webpage from the Internet.
• Stripping out the markup from the text of that page to get only the text.
• Displaying that text in two panes.
• Setting up the scroll bar to be able to adjust what is being shown in the panes.
• Reading the hyperlinks from the text and putting them as options in a dropdown box.
• Setting up the dropdown box so that when the user selects something from it, the corresponding webpage is loaded.

1. Setup

Make a new directory for this lab and copy the the files from the course directory for this lab.

cp /Public/cs245/lab9/* .