Your test cases should run with JUnit 3.8.1. Let's assume this is installed on your account under /usr/local/junit3.8.1. JUnit may not be added by default to your classpath on your account. (Check first.) In this case you must add junit.jar to your classpath. There are several ways to do this, depending on exactly what shell or development environment you are using:

• If you are using csh (or a variant like tcsh), use

      setenv CLASSPATH .:/usr/local/junit3.8.1/junit.jar

  (Notice the . on the path, which tells Java to process files in the current directory.)

• For bash, use

      export CLASSPATH=.:/usr/local/junit3.8.1/junit.jar

• You can also specify the classpath one time only using the -classpath option to javac and java, e.g.

      javac -classpath .:/usr/local/junit3.8.1/junit.jar StudentTests.java
      java -classpath .:/usr/local/junit3.8.1/junit.jar junit.textui.TestRunner StudentTests
  

You can update your classpath permanently by modifying .cshrc (for csh variants) or .bashrc (for bash). If the files do not exist, you can create them in your home directory using any text editor. If you want to write your project at home, you'll need to download JUnit 3.8.1 from the JUnit web page.