General Lab Information

Note: For lab times goto [TA's & Tutors] page.

This section contains general information about things you will need to know how to do in order compile, run and submit your completed programs.

If you need additional background information, you should definitely check out the resources CATS (Communications and Technology Services) provides. They are located downstairs in the Communications building. There is also an online tutorial, Nettrail, for learning about using The Web, email, newsgroups, and Melvyl (the electronic library information system).

If you need help getting tio working on your Windows95/98 machine look here.

Compiling and running Java programs

In the lab we will be using the standard/free JDK from Sun Microsystems running under Windows/NT. You will use any editor and then run javac to compile your program and java to execute it as described below.

Start a command line shell which you do by clicking the Start icon in the lower left corner and then clicking Utilities and then clicking "DOS Command Prompt".
I suggest you then do "cd usertemp" to change to the temporary work area.
To create your Java program, you can use any editor. A reasonable choice is SuperEdit which you will find under the Start/Programs.
After typing in your file, save it, either to a floppy or to c:\usertemp.
In the "Command Prompt" window, first cd to the directory containing your Java source file, e.g. MyClass.java. You compile a java program with "javac MyClass.java".
In the "Command Prompt" window, you run a compiled Java program with "java MyClass" (no extension) where MyClass is the name of a class that contains a method main().
When you are done, be sure and save your work either on a floppy or use ftp to transfer the Java source files to your Unix account, as described below.
After you are SURE that you have copied your files to a floppy or successfully ftp'd them to your unix account, you need to remove them from c:\usertemp (assuming that is where you created the file). You can do this with "rem *.java" from the command prompt. Be certain you have copied them before you remove them. This remove does not save a copy in the trash can, it really removes the file. It is your responsibility to not leave any copies of your files around as a temptation to other students that may use the computer after you.

Running Java2 (JDK1.2.2) on CATS Unix machines

You can also compile and run your programs on the CATS Unix machines, teach.ic and learn.ic.

FTP and Submit

You will need to ftp your files to your unix account in order to submit your completed programs. In addition, you may wish to use ftp and unix to save your work instead of using a floppy.

The Windows FTP utility can be found under the Start popup menu (lower left corner), then Internet Tools, then Unix File Transfer. This program is very easy to use. Fill in the UserID (your unix login name) and Password fields.

Once connected, you can select a file on the left window (Windows), select a directory in the right window, then click the right pointing arrow in the middle to transfer the file. You can move files or folders in either direction.

Once you have copied your files to your unix account, login to your unix account (Start/Internet Tools/Telnet), and run submit.

Ewerton L. Madruga
Modified by Charlie McDowell on January 3, 2000.