CS101 Problem Sets

There are two parts to each problem set:

The HTML handout given to the students before they do the problem set
The source code that provides functionality for the problem set

We have packaged up the source code and javadoc for each problem set in a jar file. Each jar file has the following structure:

     src/<psetname>/*.java - source code
     doc/<psetname>/*.html - javadoc generated from the source code

We have also packaged up the compiled class files in an executable jar. This executable jar allows you to run the demo for a problem set without having to compile the source code or unpack the jar file. If you want to view the source or read the javadoc, just unpack the source file using jar.

All problem sets require classes from the cs101 package. This package is a collection of utility classes we have written.

The Java SDK 1.4 or higher is required for several of the problem sets. You can dowload the JDK from Sun's Java Page.

The problem sets are presented in roughly the order we expect they would be used in a class.

As a reminder, all materials on this page are subject to our terms of use.

CS101 Utility Classes

binary jar | source jar | browse javadoc

It is no longer neccessary to download a separate jar containing the cs101 package. These utility classes have been included in all of the jars provided.

To run the demo: java -jar javaeyes.jar

This application contains a third-party tool called BeanShell for compiling code at run-time.
New: Etch-a-Sketch now handles infinite loops in student code gracefully!
To run the demo click the WebStart link above

First Laboratory (alt): Expressions, Statements, and Interactions (Spirograph - Deprecated)

This problem set is obsoleted by Etch-a-Sketch which works better, looks better, runs more reliably, makes more sense, and is actually named after the right toy. Other than that, the two are exactly the same :-)

view handout | executable jar | source jar | browse javadoc

This application contains a third-party tool called BeanShell for compiling code at run-time.
To run the demo: java -jar spirograph.jar

To run the demo click the WebStart link above.

To run the demo click the WebStart link above

Fourth Laboratory: Dispatch and Procedures (Calculator)
view handout | executable jar | source jar | browse javadoc

To run the demo:java -jar calculator.jar

Fourth Laboratory (alt): Interactive Control Loops (Balance)
view handout | executable jar | source jar | browse javadoc

To run the demo: java -jar balance.jar

Fifth Laboratory: GUI, Polymorphism (Breakout)
view handout | executable jar | source jar | browse javadoc

To run the demo: java -jar breakout.jar

Fifth Laboratory (alt): GUI (Scribble)
view handout | executable jar | source jar | browse javadoc

To run the demo: java -jar scribble.jar

To run the demo, use these commands in this order either on two different computers, or on the same computer:
- java -jar mouse.jar
- java -jar cat.jar

Seventh Laboratory: Client/Server (Shared Whiteboard)
view handout | executable jar | source jar | browse javadoc

The client application requires scribble.jar.
To run the demo, use these commands. You need one server, and can run several clients. The server and clients can run on different computers, or on the same computer.
- Server: java -cp "sharedwhiteboard.jar" cs101.net.RunServer
- Client: java -jar sharedwhiteboard.jar

Pen-and-Paper

These problem sets do not require the student to write or execute any code. They are written assignments, to be done with pen-and-paper (or text editor).

Written Assignment 1: Program Design
view handout

Written Assignment 2: System Design
view handout

Written Assignment 3: Documentation
view handout

Not ready for prime-time

These problem sets are not ready for prime-time. They are just a bunch of source code (possibly undocumented) that might someday become a problem set. They have functional demos. Feel free to use them at your own discretion.

Pig Latin
executable jar | source jar | browse javadoc

To run the demo: java -jar piglatin.jar

Producers and Consumers
executable jar | source jar | browse javadoc

To run the demo: java -jar pnc.jar

String Transformers
executable jar | source jar | browse javadoc

To run the demo: java -jar stringtransformers.jar