This is the unix version (for use when connected to icarus by telnet or ssh from a lab computer or from home.)

Before sitting down to type in, compile, and test a program you should have:

1. A written copy of the program you wish to type in,
2. Your userid and password on icarus,
3. A computer connected to the internet (a UIC lab machine, a home computer with a modem and UIC's network services kit, or a home computer and an account with some other internet service provider), and
4. A working copy of the Telnet program.

1. Log on using your userid and password.
2. Decide where you want the files you create to reside and change to that directory using the cd command. If you do nothing, all files will be created in the top level of your home directory, which is OK.
3. Type pico Welcome.java to create a file named Welcome.java containing your code. Type in your program or applet -- the sample applet in section 1.16 of Deitel and Deitel is a good applet to start with. (There are many ways to create and edit a file. If you prefer another editor which can create compilable plain text files, feel free to use it. Be warned that you may not be able to get help in class if it fails to work.) Save your work and quit the editor when you are done.
4. Type /usr/local/java/jdk1.1.4/bin/javac Welcome.java to compile your program or applet. If the compilation is successful (no error messages), typing ls should show you two files: Welcome.java and Welcome.class.
5. At this point, you have typed in some Java code and compiled it. The next step is to try running it. Running a Java program is different from running an applet.
   • You can run a compiled program by typing, for example, /usr/local/java/jdk1.1.4/bin/java Hello. Most examples provided by Dr. Burgiel or Professor Larson will be programs.
   • Most examples given by Deitel and Deitel are applets. Applets run on web pages, and generally have fancier user interfaces. To run an applet, you first first create an HTML document inside which your applet will run. You can do this by typing pico Welcome.html and entering code similar to that in Figure 1.3 of Deitel an Deitel. Save your work and quit the editor when you are done. Then run your applet by loading the web page into a java capable browser. For example, type /usr/local/java/jdk1.1.4/bin/appletviewer Welcome.html. (Note: if your web page and Java files are inside the public_html directory on your icarus account, the web page running the applet will be publically available. We will go over this in class later.)
6. Test your applet or program to see if it does what you want it to do. Edit your code (pico Welcome.java), save, compile, and run (you do not need to create a new html file unless you change the name of your program) until it does what it's supposed to.
7. Back up your work by printing it out, ftp'ing it to your home computer, ftp'ing it to a lab computer and saving it to diskette, or emailing it to a non-UIC account of yours.
8. Type "logout" to close your connection to icarus.

export PATH=$HOME:/usr/local/bin:/usr/bin:/etc:/usr/sbin:/opt/SUNWspro/bin:/usr/ucb:/usr/bin/X11:/sbin:/usr/openwin/bin:/usr/local/java/jdk1.1.4/bin:.