Notes on UI
===========

This is the first steps into Java GUI and its components:

	-- Components (JFrame, ...)
	-- Listeners and Adapters (MouseAdapter, ...)

Based on "Core Java, Vol 1" by Horstmann and Cornell,
chapter 7, graphics programming.

(1) The programs in this directory is a progression
	
	1. EmptyFrame.java:
		introduces the use of a JFrame that is empty.
	2. EmptyFrame1.java
		introduces a "WindowListener" for the JFrame
		to quit properly.
	3. myPanel.java
		adds a JPanel to a JFrame.
	4. myPanel1.java
		elaborates on myPanel.java by introducing
		the use of fonts.
	5. DrawFrame.java
		primitives for drawing/filling polygons and arcs
	6. DrawFrame1.java
		primitives for drawing/filling various rectangles
	7. ButtonFrame.java
		first steps into event handling
		Demo is a panel with 2 buttons.