Java 1.2.x Basics
(Java Software Developers Kit 1.2.x)

I.  Java keywords

  abstract
  boolean
  break
  byte
  case
  catch
  char
  class
  const           (reserved, but not used)
  continue
  default
  do
  double
  else
  extends
  false
  final
  finally
  float
  for
  goto            (reserved, but not used)
  if
  implements
  import          (makes available without full qualification, but does not include actual text like C++ does)
  instanceof
  int
  interface
  long
  native
  new
  null
  package
  private
  protected
  public
  return
  short
  static
  super
  switch
  synchronized
  this
  throw
  throws
  transient
  true
  try
  void
  volatile
  while

II.  Java primitive data types (p. 105)

  boolean
  byte
  char
  double
  float
  int
  long
  short

III.  Java key concepts

  action event
  action listener
  application
  applet
  bytecode
  class
  component
  event driven (Java) vs. object driven (C++) vs. function driven (C)
  event handling
  gui
  html
  interface
  layout manager
  member access modifiers (public, private, protected)
  method
  object
  package
  register
  run-time exceptions
  run-time interpreter
  threads

IV.  Java components (classes in the java.awt inheritance hierarchy) (pp. 515, 565)

   java.lang.object
       java.util.EventObject
           java.awt.AWTEvent
               ActionEvent
               AdjustmentEvent
               ItemEvent
               ComponentEvent
                   ContainerEvent
                   FocusEvent
                   PaintEvent
                   WindowEvent
                   InputEvent
                       KeyEvent
                       MouseEvent
           java.awt.Color
               black      (  0,   0,   0)
               red        (255,   0,   0)
               green      (  0, 255,   0)
               blue       (  0,   0, 255)
               yellow     (255, 255,   0)
               white      (255, 255, 255)
               gray       (128, 128, 128)
               light gray (192, 192, 192)
               dark gray  ( 64,  64,  64)
           java.awt.Component
                   paint()
                   repaint()
                   Label           (these heavyweight components are tied directly to the local platform's GUI capabilities
                   TextField        for their "look and feel")
                   TextArea
                   Button
                   CheckBox
                   ComboBox
                   List
                   Panel
               java.awt.Container   -- a collection of related comonents
                   Box
                   javax.swing.JComponent
                       JLabel      (these lightweight components are NOT tied directly to the local platform's GUI
                       JTextField   capabilities for their "look and feel")
                       JTextArea
                       JPassWord
                       JButton
                       JCheckBox
                       JComboBox
                       JList
                       JPanel
           java.awt.Font
               PLAIN
               BOLD
               ITALIC
               Serif
               Monospaced
               Sans-Serif
           java.awt.FontMetrics
               ascent
               descent
               leading
               height
           java.awt.Graphics
                  drawLine(int x1, int y1, int x2, int y2)
                  drawRect(int x, int y, int width, int height)
                  fillRect(int x, int y, int width, int height)
                  clearRect(int x, int y, int width, int height)
                  drawRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
                  fillRoundRect(int x, int y, int widht, int height, int arcWidth,int arcHeight)
                  draw3DRect(int x, int y, int width, int height, boolean b)
                  fill3DRect(int x, int y, int width, int height, boolean b)
                  drawOval(int x, int y, int width, int height)
                  fillOval(int x, int y, int width, int height)
               java.awt.Graphics2D
                  Ellipse2D.Float
                  Ellipse2D.Double
                  Rectangle2D.Float
                  Rectangle2D.Double
                  RoundRectangle2D.Float
                  RoundRectangle2D.Double
                  Arc2D.Float
                  Arc2D.Double
                  Line2D.Float
                  Line2D.Double
           java.awt.Polygon
                  drawPolygon(...)
                  fillPolygon(...)
                  Polycon()
                  Polygon(...)
           java.awt.BasicStroke
           java.awt.GradientPaint
           java.awt.TexturePaint
           java.awt.geom.GeneralPath
           java.awt.geom.Line2D
           java.awt.geom.RectangularShape
               java.awt.geom.Arc2D
               java.awt.geom.Ellipse2D
               java.awt.geom.Rectangle2D
               java.awt.geom.RoundRectangle2D
           java.awt.Paint
           java.awt.Shape
           java.awt.Stroke
           
     
V.  Processing an event

  1. Implement the appropriate interface
  2. Declare the component reference
  3. Allocate the component reference
  4  Register an event handler for that component
  5  Implement an event hander (override the required function from the
       interface)

VI.  Methods of the Applet class that are called by the appletviewer or
       browser (p. 247)

  1.  public void init()
        -- initialize variables
        -- initialize GUI components

  2.  public void start()
        -- called after init() is finished
        -- called every time the browser returns to the HTML page on which
             the applet resides, after browsing another HTML page

  3.  public void paint(Graphics g)
        -- called after init() is finished and start() has begun executing,
             to draw on the applet using the Graphics object 'g'
        -- called automatically every time the applet needs to be repainted

  4.  public void stop()
        -- called when the browser user leaves the HTML page on which the
             applet resides
        -- called when the browser is closed
        -- stops execution of animations, threads, etc., as required to
            suspend the applet's execution

  5.  public void destroy()
        -- called when the browser is closed (when the applet is removed
            from memory)
        -- performs tasks required to free resources allocated to the applet,
            such as terminating threads