Elements of the Java Platform

CS 161 - Java

Assignment for Next Session

Reading

If you haven't already done so, read

Chapter 1 - Introduction and a Taste of Java
Chapter 2 - Primitive Types and Strings
Chapter 3 - Flow of Control

Programming Assignment

Decide what platform you are going to work on
- Windows
  - GMU CS lab - use JavaEdit and JDK 1.2.2
  - At home or on some other PC - use JavaEdit and JDK 1.1.8
- Unix
  - osf1 supports JDK 1.1.8 for non-GUI applications
    use pico or vi and the javac and java commands
- Other systems you may have access to have other challenges
  Email me if you have questions.
Using a simple text editor, (like vi, pico, javaedit, or Notepad) create a file Hello.java.
Write the class Hello so that it prints on four lines just:
- Your name
- Your GMU ID
- Your email address
- The date and time - you decide how to accomplish this; we'll discuss some possibilities next week
You can get these values into the program in any way you like: from the command line or just by having "strings embedded in the source code".
Do not prompt the user for the values or bother trying to read the values from the keyboard. Do not try to use SavitchIn.
Hint: Make a copy of the MyName.java file; rename it Hello.java; and add what is necessary to fulfill the homework requirements.
Run javac compiler
Fix any errors
Repeat last two steps if necessary until you have no more errors
Run java interpreter on class file
Turn in transcript of showing sucessful exection of javac and java as well as a copy of source file(s)
- On Windows copy and paste the contents of a DOS window into a JavaEdit text document window or Notepad. Or take a snapshot of the window showing the program execution using Alt PrintScreen and then paste the snapshot into Paint to print the resultant image.
- On Unix, use the script command to start recording. Do
```
javac Hello.java
java Hello
cat Hello.java
```
  to show the compiler execution with no errors, record the program running, and list the program source file. Use the exit command to end the script; print the result that is stored in the file named transcript.

jwd