Bag
Color (java.awt.Color)
Comparable (java.lang.Comparable)
Component (java.awt.Component)
Container (java.awt.Container)
DrawingGizmo
enum (for creating enumerated types)
EventButton
EventSlider
EventTextField
EventTimer
Graphics (java.awt.Graphics)
Image
Iterator (java.util.Iterator)
JComponent (javax.swing.JComponent)
JFrame (javax.swing.JFrame)
Label (java.awt.Label)
Line
Math (java.lang.Math)
Object (java.lang.Object)
Oval
Rectangle
Scanner (java.util.Scanner)
SimpleList
String (java.lang.String)
TextArea (java.awt.TextArea)
ThreeButtons