How to use the Java System

1. Log in to the system sun01 as user ooad. This can be done with the following command:

   rlogin -l ooad sun01.sts.tu-harburg.de

2. Redirect the output to your local computer. This is done by the following command:

   setenv DISPLAY <Rechnername>.cip2b.tu-harburg.de:0

3. Change to the directory that belongs to your working group:

   cd ooad<xx>

4. Start working with Java

Important Steps in Writing and Running Your First Java Program

1. Create some source code within your text editor like the class Cell

   xemacs &

2. Save it as .java - file, use the name of the class plus the extension .java (e.g. Cell.java)
   
3. Compile the source file: javac

   javac Cell.java 

4. You get bytecode within a .class - file (Cell.class)
   
5. Run your application by interpreting the primary class' bytecode

   java Cell

6. The Java interpreter looks for the main-method and executes it.

Debugging

You can debug you r program by using the debug option of the compiler:

javac -debug Cell.java