HSA2

Holt Software Associates simple graphics for Java — updated for Java 7 and Java 8.

The intent of this software is to allow new Java programmers to start using graphics without having to learn Swing first.

provides a JPanel inside a JFrame to draw graphics on (called "GraphicsConsole").
hides all of the event listeners for the mouse and keyboard and implements polling instead. This is so students can start using keyboard and mouse input immediately without having to learn about events and event listeners
uses all of the Swing drawing commands on the Graphics object (e.g. drawString(), fillOval()).
works with Images, ImageIcons, and BufferedImages
provides a simple implementation of JOPtionPanes for dialog boxes

All keyboard input is handled through the Swing KeyListener.
There is no error handling for text input: the program displays a message and then ends immediately.
There is some flickering still with animated images. Using the syncrhonized keyword helps.
No JButtons, JLabels, or other Swing components can be added to the JPanel, but as one can see from the examples, they're not really necessary.
Many advanced Graphics2D functions are not implemented. Antialiasing and rotate both work.
Only one JPanel is created per JFrame (GraphicsConsole). However, you can have multiple GraphicsConsoles.

These limitations will not be fixed. The solution is to begin programming in Swing or JavaFX.

To install the HSA2 library into Ecplise:

download the zip file from Github
unzip it
drag the whole hsa2 folder into the SRC folder of whatever project you're working on in Eclipse

See "HSA Change log.txt" for list of changes (and also look at the changes using Git).

This repository is at https://github.com/salamander2/HSA2