Please send questions to
st10@humboldt.edu .
CIS 480 - Spring 2001
HW #2
Due: Wednesday, February 14, 2001, beginning of lab
Note that you need to write two distinct, different Java applications
for this assignment.
If you meet the minimum requirements below, that up to 90% credit. If
you do something interesting in these programs, that's how you can
get up to 100%. Note that the possibilities given below do count as
"interesting" in this sense.
1. Write a Java application:
* with an AWT GUI (no Swing yet) --- it should at least
properly set up and use a Frame or Frame subclass;
* that handles window-closing gracefully;
* with at least one sensitive component (that is, at least
one component that deliberately "does" something when the
user acts upon it);
* with a menu bar with at least two menus with at least
two menu items each; note that each menu item needs to
do *something*.
* that does something different from the in-class examples.
* name this application Hw2Num1.java
* some possibilities (mix and match as desired to meet the
above requirements):
* OK, you could use a Colors menu to customize
colors in your GUI somewhat. But change the colors
of something besides the frame background, and use
different colors, at least... (could change font colors,
for example...)
* For that matter, you could have a Fonts menu
with several choices of fonts as menu item.
* Could have some textfields intended to hold
numbers, and could then have a Math menu with
different operations to be done to those numbers
(with the results displayed in some fashion).
* A "clear" menu item within some menu could
be used to clear all textfields or otherwise "reset"
some aspect of the GUI.
2. Write a second, *different* Java application:
* uses command-line arguments;
* uses an AWT GUI (no Swing yet) --- it should at least
properly set up and use a Frame or Frame subclass;
* that uses its command line arguments to affect, somehow,
what appears on its GUI;
* that handles window-closing gracefully;
* that does something different from the in-class examples.
* name this application Hw2Num2.java
* some possibilities:
* have the application put as many textfields
on its frame as is indicated by the command-line
argument (you'd need to make sure that the command
line argument was an integer within some small,
reasonable range, of course, and would need to
complain if it was not);
* "customize" your frame (its labels and/or buttons,
etc.) with some string or strings given as command-line
arguments, and/or customize it color(s) based on
command-line arguments, etc. How should your application
behave if no arguments are given? If inappropriate
arguments are given (if inappropriate arguments are
possible)? This one needs to do something different
from your application for #1, note (although it
could use one of #1's suggested ideas that you did
not use on #1).
Minimal style standards (to be added to, if necessary!)
* every Java source file should begin with at least
a small block comment describing the purpose of what
is within, and including your name. If you are modifying
existing code (such as an in-class example), you should
indicate that, also.
* programs are expected to have at least a few
descriptive internal comments
* neat, consistent indenting is required.
* reasonably-descriptive and non-misleading variable
names are expected.
Then, send two e-mails to st10@humboldt.edu as follows:
* each Subject: line should be the name of Java source
contained within that e-mail message (so, one will have
Subject: Hw2Num1.java, and the other will have
Subject: Hw2Num2.java)
* the *body* of each e-mail should contain the
Java source (that is, do NOT include it as an attachment!!!)
* please FIX the indenting in the Java source code
if it is ugly when placed in the e-mail body! (Source code
pasted from BlueJ sometimes requires such clean-up.)