Sams Teach Yourself Visual J++ 6 in 21 Days
(Publisher: Macmillan Computer Publishing)
Author(s): Rick Leinecker
ISBN: 0672313510
Publication Date: 11/01/98

Introduction

About the Authors

Week 1—At a Glance

Day 1—Getting Started: The Visual J++ Environment

Java and Visual J++

The Power of Java

Limitations of the Web

Solutions for the Web with Java

The Introduction of Visual J++ 6

Highlights of the Visual J++ Environment

Getting Help

Navigating Your Source-Code Windows

Build Options

Project Settings

Creating Your First Applet

What Comes First

Member Variable Declarations

Constructors

The init() Method

The start() Method

The run() Method

The stop() Method

The destroy() Method

Creating Your First Application

Resources on the Web

www.microsoft.com/visualj/

www.sun.com/java/

www.developer.com/directories/pages/dir.java.html

www.javasoft.com

www.javalobby.org

www.javaworld.com/javasoft.index.html

www.jars.com

Macmillan Computer Publishing’s Java Resource Center

Summary

Q&A

Review Exercises

Day 2—Java Language Fundamentals

Java Variables

Declaring Variables

Naming Variables

Declaring Variable Types

Initializing and Storing Values in Variables

Initializing an Array

Java Expressions

Understanding Operators

Evaluating Operator Precedence

Forcing Operator Precedence

Performing Array Operations

Java Program Control

if Statements

switch Statements

Programming with Loops

break and continue Statements

Java Exceptions

Managing the Call Stack

Throwing Exceptions

Catching Exceptions

Handling Exceptions with try-catch

Declaring Exceptions

Summary

Q&A

Day 3—Making Applets Live On the Web

The <APPLET> Tag

Attributes

CODEBASE

Applet Parameters

Good, Solid Values

Multiple Values

Alternate HTML

The Closing Applet Tag

Making Applets Live

Obtaining WS_FTP

Creating the Web Server Directory Layout

Connecting to the Server

Uploading the Applet

Editing the HTML File

Summary

Q&A

Review Exercises

Day 4—Debugging Java Applets and Applications

Preparing Projects for Debugging

Starting a Debugging Session

Stepping Through a Project

Step Into

End

Step Over

Step Out

Run To Cursor

Debug Windows

The Watch Window

The Locals Window

The Autos Window

The Immediate Window

The Call Stack Window

Breakpoints

The Breakpoints Dialog Box

Debugging Tips

Is This Mistake Somewhere Else Also?

What Next Bug Is Hidden Behind This One?

What Should I Do to Prevent Bugs Like This?

Applications of the Technique

Good Design Can Prevent the Need for Debugging

Design Your Program Carefully

Organize Your Program Well

Make Each Class and Method Easy to Understand

Read Your Source Code and Simulate It Mentally

Summary

Q&A

Review Exercises

Day 5—Windows

Creating Windows with the Frame Class

Defining Java Classes

Declaring Classes

Declaring Instance Variables

Using Class Variables

Declaring Methods

Overloading Methods

Declaring Constructors

Creating and Destroying Objects

Comparing Objects

Copying Objects

Using Inheritance

Using the Super() Method

Calling Superclass Constructors

Calling Superclass Methods

Calling with the this Keyword

Creating a Program That Uses an Extended Frame Class

Listening for Frame Class Events

Collecting the Garbage

Summary

Q&A

Exercises

Day 6—Menus

Creating Applet Menus

Handling Applet Menu Events

Using a Menu in an Applet

Creating Menus in Applications

Adding Menu Events in Applications

Presenting a Sample Application Program

Adding Pop-Up Menus in Applets

Summary

Q&A

Review Exercises

Day 7—Applet User Interface Controls

The Button Control

Constructors

Handling Events

The Checkbox Control

Constructors

Checkbox Events

Sample Programs

Checkbox Groups

Constructors

Grouping Check Boxes

Sample Program

The Choice Control

Constructors

Choice Events

Sample Programs That Handle Choice Control Events

The List Control

Constructors

List Control Events

Sample Programs

The TextField Control

Constructors

Sample Program

The TextArea Control

Constructors

Events

The Label Control

Constructors

Events

Sample Program

Summary

Q&A

Exercises

Week 2—At a Glance

Day 8—Application Controls

Label, Edit, and RichEdit Controls

Label Control

Edit Control

RichEdit Control

Button, CheckBox, RadioButton, and GroupBox Controls

Button Control

CheckBox Control

RadioButton Control

GroupBox Control

ComboBox, ListBox, and CheckedListBoxy Controls

ComboBox Control

ListBox Control

CheckedListBox Control

ListView and TreeView Controls

HScrollbar and VScrollbar Controls

Toolbar and StatusBar Controls

Toolbar Control

StatusBar Control

Summary

Q&A

Exercises

Day 9—Dialogs

Creating a Dialog

Handling Dialog Button Events

Performing Tasks When Users Click

Useful Form Methods

Summary

Q&A

Exercises

Day 10—Fonts and Text

The Graphics Class

Methods to Override for Painting

The repaint() and update() Methods

Try It Yourself!

The Graphics Coordinate System

The Font Class

Drawing Text

Setting Colors in Java

The FontMetrics Class

Finding Out Which Fonts Are Available

Fonts in Visual J++ Applications

A Marquee Applet

Setting the Font of a Control

Summary

Q&A

Review Exercises

Day 11—Drawing

The Graphics Class

Lines

Rectangles

Plain Rectangles

Rounded Rectangles

Three-Dimensional Rectangles

Polygons

Drawing Thick Lines with Polygons

Ovals

Arcs

The copyArea() and clearRect() Methods

Summary

Q&A

Review Exercises

Day 12—Images

Picture File Types: GIF and JPG

GIF Image Files

JPG Images

GIF and JPG Comparisons

The Image Class

ImageObserver

Loading Images

Loading Images in Java Applets

Loading Images in Java Applications

Displaying Images

Waiting for Images: Using the MediaTracker Class

Drawing Part of an Image

Adding Borders to Your Images

Drawing Your Images Inverted and Reversed

Summary

Q&A

Review Exercises

Day 13—Image Processing

Getting Pixel Data from Applet Images

Getting Pixel Data from Application Images

Creating an Image from Pixel Data in an Applet

Creating an Image from Pixel Data in an Application

Working with Pixel Data in Applets

Working with Pixel Data in Applications

Image Point Processing

Converting Images to Grayscale

Changing the Brightness of an Image

Colorizing Images

One Program, Many Processes

Horizontal and Waves

Creating Line Art from Images

Blurring Images

Summary

Q&A

Review Exercises

Day 14—Animation

Threads and Timers

Threads in Visual J++ Applets

Timers in Visual J++ Applications

Double Buffering

Line Animation

The SimpleLineAnimation Applet

The RandomLine Application

Bouncing Balls

Multiframe Images

Ad Banners

Summary

Q&A

Review Exercises

Week 3—At a Glance

Day 15—Exceptions

What Are Exceptions?

Exception Handling the Java Way

Java’s Exception Classes

Demo: An Applet That Handles File I/O Exceptions

Demo: Implementing User-Defined Exceptions

Summary

Q&A

Review Exercises

Day 16—Mouse Input

Using the MouseListener Interface

Using the MouseMotionListener Interface

Handling Mouse Events

Adding Mouse Events in Visual J++ Applications

Using Mouse Events in an Application

Summary

Q&A

Exercises

Day 17—Threads

Threads in Brief

Implementing Multiple Threads

Using the Thread Class

Using an Interface

Coding a Multithreaded Program

Using the Synchronized Method Modifier

Learning About Daemon Threads

Debugging Threads

Thread Class Definition

Demo: A Single-Threaded Applet with a Tight Loop in Initialization

Demo: A Multithreaded Applet with a Tight Loop in Initialization

Writing a Multithreaded Program

Summary

Q&A

Review Exercises

Day 18—Strings

Strings and Character Arrays in Java

Demo: Retrieving and Manipulating Strings

Demo: Searching and Comparing Strings

Writing Your Own String Subclass

Extracting Fields from a String

Formatting Currency

Retrieving Pairs of Values from a String

Summary

Q&A

Review Exercises

Day 19—Stream I/O

Input Stream Classes

Output Stream Classes

Stream Interfaces

Reading a File and Displaying the File’s Contents

Copying Files

Summary

Q&A

Exercises

Day 20—ActiveX

What is ActiveX?

Object Linking and Embedding

Component Object Model

ActiveX

ActiveX Applications and Components

Using ActiveX Controls with Visual J++

Installing the Controls

Using Other Controls

Summary

Q&A

Exercises

Day 21—J/Direct

A Quick Look at J/Direct

Creating Classes with J/Direct

Displaying a MessageBox Through a Windows API Call

J/Direct Options

Data Marshalling

Using J/Direct: Getting System Colors

Summary

Q&A

Exercises