CISC370-011 -- demo code from class #3

This page provides links to some demo programs from class #3 (23 Sept).

Reflector.java exercises Java's reflection capabilities.

TryFrame.java demonstrates very basic JFrame operations.

Homework02_Plus.java adds an interface for printer-plotting to the Shape classes from homework #2. It allocates an array of these printer-plottable objects, fills it with Shapes, plots them out, and prints them as in the assignment. Here are the source files:

• Homework02_Plus.java
• PrinterPlottable.java
• PlotContext.java
• Shape.java
• Rectangle.java
• Circle.java
• Ellipse.java
• Line.java

And here is a terminal session showing a run of the program:

D:\Teaching\CIS370\Web\demo\class03\hw02plus>javac *.java

D:\Teaching\CIS370\Web\demo\class03\hw02plus>java Homework02_Plus
+----------------------------------------------------------------------------+
|*************************************************                           |
|********++++++++++++++++++++++*******************                           |
|********++++++++++++++++++++++*******************                           |
|********++++++++++++++++++++++*******************                           |
|********++++++++++++++++++++++*******************                           |
|********++++++++++++++++++++++*******************            ++++           |
|********++++++++++++++++++++++*******************           ++++++          |
|********++++++++++++++++++++++*******************          ++++++++         |
|********++++++++++++++++++++++*******************          ++++++++         |
|********+++++++++######+++++++******************           ++++++++         |
|********++++++++########++++++**********%%%%%%%*           ++++++++         |
|********+++++++##########+++++*****************%%%@@@%%%%%%%++++++%%%%%@    |
|********++++++############++++##****************@@%%%%@@@@@@@++++@@@@@@@    |
|********+++++##############+++**#************** @@@@@@%%%%%%%@@@@@@@@@@@    |
|********+++++##############+++***************** @@@@@@@@@@@@@%%%%@**********|
|********+++++##############++****************** @@@@@@@@@@@@@@@@@%**********|
|********+++++##############+++*****@@@********  @@@@@@@@@@@@@@@@@@**********|
|*************##############***********@@@@****  @@@@@@@@@@@@@@@@@@**********|
|*************##############***************@**   @@@@@@@@@@@@@@@@@@**********|
|**************############******************    @@@@@@@@@@@@@@@@@@**********|
|***************##########*******************    ------------@@@@@@**********|
|****************########*O*****************     ------------@@@@@@**********|
|*****************######***O*************** *    ------------@@@@@@**********|
| **************************O*************   **  ------------@@@@@@**********|
|  **************************************      **------------@@@@@@**********|
|   ************************************         **----------@@@@@@**********|
|    **********************************          --*---------@@@@@@**********|
|      ******************************            ---**-------@@@@@@**********|
|       ****************************             -----**-----@@@@@@**********|
|         ************************               -------**---@@@@@@**********|
|            ******************                  ---------*--      **********|
|                **********                      ------------      **********|
+----------------------------------------------------------------------------+

Line[x1=7,y1=9,x2=32,y2=19]
Circle[x=22,y=18,r=13]
Rectangle[x=48,y=11,w=23,h=18]
Line[x1=8,y1=2,x2=9,y2=21]
Rectangle[x=53,y=11,w=17,h=0]
Circle[x=21,y=4,r=28]
Ellipse[x=40,y=4,w=36,h=8]
Circle[x=63,y=9,r=4]
Rectangle[x=48,y=20,w=11,h=13]
Line[x1=35,y1=16,x2=42,y2=18]
Line[x1=16,y1=8,x2=32,y2=13]
Line[x1=40,y1=10,x2=69,y2=16]
Rectangle[x=66,y=14,w=20,h=18]
Line[x1=10,y1=4,x2=27,y2=23]
Rectangle[x=8,y=1,w=21,h=15]
Ellipse[x=71,y=21,w=15,h=4]
Ellipse[x=14,y=0,w=14,h=2]
Circle[x=20,y=16,r=7]
Ellipse[x=61,y=13,w=17,h=9]
Line[x1=29,y1=15,x2=57,y2=30]

D:\Teaching\CIS370\Web\demo\class03\hw02plus>