Beginning programming with Java for dummies

Beginning Programming with Java For Dummies......Page 1
About the Author......Page 5
Author’s Acknowledgments......Page 7
Contents at a Glance......Page 9
Table of Contents......Page 11
How to Use This Book......Page 19
What You Don’t Have to Read......Page 20
Foolish Assumptions......Page 21
How This Book Is Organized......Page 22
Icons Used in This Book......Page 23
Where to Go from Here......Page 24
Part I Revving Up......Page 25
What’s It All About?......Page 27
From Your Mind to the Computer’s Processor......Page 30
Your Java Programming Toolset......Page 37
Setting Up Your Computer......Page 41
Downloading and Installing the Software You Need......Page 42
Running JCreator for the First Time......Page 47
Is That All There Is to It?......Page 49
Running a Canned Java Program......Page 51
Typing and Running Your Own Code......Page 56
Part II Writing Your Own Java Programs......Page 63
Checking Out Java Code for the First Time......Page 65
The Elements in a Java Program......Page 67
Understanding a Simple Java Program......Page 75
Composing a Program......Page 83
A Program to Echo Keyboard Input......Page 84
Expecting the Unexpected......Page 92
Using Variables......Page 107
What Do All Those Zeros and Ones Mean?......Page 112
Reading Decimal Numbers from the Keyboard......Page 114
Variations on a Theme......Page 117
Using Whole Numbers......Page 121
Creating New Values by Applying Operators......Page 126
Size Matters......Page 136
Numbers? Who Needs Numbers?......Page 139
Characters......Page 140
The boolean Type......Page 149
The Remaining Primitive Types......Page 156
Part III Controlling the Flow......Page 157
Forks in the Road......Page 159
Making Decisions (Java if Statements)......Page 161
Variations on the Theme......Page 168
Forming Bigger and Better Conditions......Page 175
Building a Nest......Page 188
Enumerating the Possibilities......Page 193
Meet the switch Statement......Page 199
Using Fall-through to Your Advantage......Page 208
Using a Conditional Operator......Page 210
Around and Around It Goes......Page 213
Repeating Instructions Over and Over Again (Java while Statements)......Page 214
Thinking about Loops (What Statements Go Where)......Page 218
Thinking About Loops (Priming)......Page 225
Piles of Files: Dealing with Information Overload......Page 233
Running a Disk-Oriented Program......Page 234
Writing a Disk-Oriented Program......Page 243
Writing, Rewriting, and Re-rewriting......Page 247
Creating Loops within Loops......Page 250
Paying Your Old Code a Little Visit......Page 251
Creating Useful Code......Page 253
The Old Runaround......Page 262
Repeating Statements a Certain Number Times (Java for Statements)......Page 263
Repeating Until You Get What You Need (Java do Statements)......Page 270
Repeating with Predetermined Values (Java’s Enhanced for Statement)......Page 276
Part IV Using Program Units......Page 285
Some for Loops in Action......Page 287
Meet the Reader......Page 293
Working with Arrays......Page 299
Programming with Objects and Classes......Page 305
Creating a Class......Page 306
From Classes Come Objects......Page 310
About Classes......Page 316
The String Class......Page 319
Using an Object’s Methods......Page 323
Static Methods......Page 329
Understanding the Big Picture......Page 334
Defining a Method within a Class......Page 341
Let the Objects Do the Work......Page 350
Passing Values to Methods......Page 352
Getting a Value from a Method......Page 357
Oooey GUI Was a Worm......Page 363
The Java Swing Classes......Page 364
with Buttons and Text Fields)......Page 368
Taking Action......Page 371
Part V The Part of Tens......Page 375
The Horse’s Mouth......Page 377
Finding Help on Newsgroups......Page 378
Opinions and Advocacy......Page 379
Programming Languages......Page 380
Everyone’s Favorite Sites......Page 381
Applet......Page 383
Integer......Page 384
String......Page 385
System......Page 386
Index......Page 387