Sams Teach Yourself Java in 21 Days (Covering Java 7 and Android) [NOOK Book]

Overview

Sams Teach Yourself Java in 21 Days
Covering Java 7 and Android App Development

Sams Teach Yourself Java in 21 Days continues to be one of the most popular, best-selling Java tutorials on the market. Written by an expert technical writer, it has been acclaimed for its clear and personable writing, for its extensive use of examples, and for its logical and complete organization.

The sixth edition of Sams Teach...

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Sams Teach Yourself Java in 21 Days (Covering Java 7 and Android)

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Overview

Sams Teach Yourself Java in 21 Days
Covering Java 7 and Android App Development

Sams Teach Yourself Java in 21 Days continues to be one of the most popular, best-selling Java tutorials on the market. Written by an expert technical writer, it has been acclaimed for its clear and personable writing, for its extensive use of examples, and for its logical and complete organization.

The sixth edition of Sams Teach Yourself Java in 21 Days adds coverage of Java 7 and places a special emphasis on Android programming, capitalizing on the fastest-growing area of Java programming. There will be a new chapter on Android development and additional material where appropriate throughout the book. This edition also includes new material on using NetBeans, the free integrated IDE for Java.

No previous programming experience required. By following the 21 carefully organized lessons in this book, anyone can learn the basics of Java programming.

Learn at your own pace. You can work through each chapter sequentially to make sure you thoroughly understand all the concepts and methodologies, or you can focus on specific lessons to learn the techniques that interest you most.

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Test your knowledge. Each chapter ends with a Workshop section filled with questions, answers, and exercises for further study. There are even certification practice questions.

  • Completely revised, updated, and expanded to cover the latest features of Java 7
  • Learn to develop standalone Java applications, Android apps, and Java Web Start applications
  • Easy-to-understand, practical examples clearly illustrate the fundamentals of Java programming
  • Discover how Swing can help you quickly develop programs with a graphical user interface
  • Find out about JDBC 4.1 programming with the Java DB database and XML parsing with the open source XOM class library
  • Covers new features of Java 7 such as improved try-catch exception handling, the new switch, and Nimbus look and feel
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Product Details

  • ISBN-13: 9780132841658
  • Publisher: Pearson Education
  • Publication date: 8/30/2012
  • Series: Sams Teach Yourself
  • Sold by: Barnes & Noble
  • Format: eBook
  • Edition number: 6
  • Pages: 720
  • Sales rank: 229,037
  • File size: 50 MB
  • Note: This product may take a few minutes to download.

Meet the Author

Rogers Cadenhead is a programmer and author. He has written more than 20 books on programming and web publishing, including Sams Teach Yourself Java in 24 Hours. He also publishes the Drudge Retort and other websites that receive more than 20 million visits a year. He maintains this book’s official website at java21days.com and a personal weblog at workbench.cadenhead.org.

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Table of Contents

Introduction 1

WEEK 1: The Java Language 7

1 Getting Started with Java 9

The Java Language 10

History of the Language 10

Introduction to Java 11

Selecting a Development Tool 12

Object-Oriented Programming 13

Objects and Classes 14

Attributes and Behavior 17

Attributes of a Class of Objects 17

Behavior of a Class of Objects 18

Creating a Class 19

Running the Program 23

Organizing Classes and Class Behavior 25

Inheritance

Creating a Class Hierarchy 27

Inheritance in Action 29

Interfaces 31

Packages 32

Summary 32

Q&A

Quiz 34

Questions 34

Certification Practice 34

Exercises 35

2 The ABCs of Programming 37

Statements and Expressions 38

Variables and Data Types 38

Creating Variables 39

Naming Variables 40

Variable Types 41

Assigning Values to Variables 43

Constants 43

Comments 45

Literals 46

Number Literals 47

Boolean Literals 48

Character Literals 49

String Literals 50

Expressions and Operators 51

Arithmetic 51

More About Assignment 53

Incrementing and Decrementing 54

Comparisons 56

Logical Operators 57

Operator Precedence 58

String Arithmetic 60

Summary 61

Q&A 62

Quiz 62

Questions 62

Certification Practice 63

Exercises 63

3 Working with Objects 65

Creating New Objects 66

Using new 66

How Objects Are Constructed 68

A Note on Memory Management 69

Using Class and Instance Variables 70

Getting Values 70

Setting Values 70

Class Variables 72

Calling Methods 73

Formatting Strings 75

Nesting Method Calls 75

Class Methods 76

References to Objects 77

Casting Objects and Primitive Types 79

Casting Primitive Types 80

Casting Objects 81

Converting Primitive Types to Objects and Vice Versa 83

Comparing Object Values and Classes 84

Comparing Objects 85

Determining the Class of an Object 87

Summary 87

Q&A 88

Quiz 88

Questions 89

Certification Practice 89

Exercises 90

4 Lists, Logic, and Loops 91

Arrays 92

Declaring Array Variables 92

Creating Array Objects 93

Accessing Array Elements 94

Changing Array Elements 95

Multidimensional Arrays 97

Block Statements 98

If Conditionals 99

Switch Conditionals 101

The Ternary Operator 107

For Loops 108

While and Do Loops 111

While Loops 111

Do-While Loops 113

Breaking Out of Loops 114

Labeled Loops 114

Summary 115

Q&A 115

Quiz 116

Questions 116

Certification Practice 117

Exercises 117

5 Creating Classes and Methods 119

Defining Classes 120

Creating Instance and Class Variables 120

Defining Instance Variables 120

Class Variables 121

Creating Methods 121

Defining Methods 122

The this Keyword 124

Variable Scope and Method Definitions 125

Passing Arguments to Methods 126

Class Methods 127

Creating Java Applications 129

Helper Classes 130

Java Applications and Command-Line Arguments 130

Passing Arguments to Java Applications 130

Handling Arguments in Your Java Application 131

Creating Methods with the Same Name 133

Constructors 136

Basic Constructors 137

Calling Another Constructor 138

Overloading Constructors 138

Overriding Methods 140

Creating Methods That Override Existing Methods 140

Calling the Original Method 142

Overriding Constructors 143

Summary 144

Q&A 145

Quiz 146

Questions 146

Certification Practice 146

Exercises 148

6 Packages, Interfaces, and Other Class Features 149

Modifiers 150

Access Control for Methods and Variables 151

Static Variables and Methods 157

Final Classes, Methods, and Variables 159

Variables 159

Methods 160

Classes 160

Abstract Classes and Methods 161

Packages 162

The import Declaration 163

Class Name Conflicts 165

Creating Your Own Packages 165

Picking a Package Name 165

Creating the Folder Structure 166

Adding a Class to a Package 166

Packages and Class Access Control 166

Interfaces 167

The Problem of Single Inheritance 167

Interfaces and Classes 168

Implementing and Using Interfaces 168

Implementing Multiple Interfaces 169

Other Uses of Interfaces 169

Creating and Extending Interfaces 170

New Interfaces 170

Methods Inside Interfaces 171

Extending Interfaces 172

Creating an Online Storefront 172

Inner Classes 179

Summary 181

Q&A 182

Quiz 183

Questions 183

Certification Practice 183

Exercises 185

7 Exceptions and Threads 187

Exceptions 188

Exception Classes 190

Managing Exceptions 191

Exception Consistency Checking 191

Protecting Code and Catching Exceptions 192

The finally Clause 195

Declaring Methods That Might Throw Exceptions 198

The throws Clause 199

Which Exceptions Should You Throw? 200

Passing on Exceptions 201

throws and Inheritance 202

Creating and Throwing Your Own Exceptions 203

Throwing Exceptions 203

Creating Your Own Exceptions 204

Combining throws, try, and throw 204

When and When Not to Use Exceptions 205

When to Use Exceptions 205

When Not to Use Exceptions 206

Bad Style Using Exceptions 206

Threads 207

Writing a Threaded Program 207

A Threaded Application 209

Stopping a Thread 214

Summary 215

Q&A 215

Quiz 217

Questions 217

Certification Practice 217

Exercises 218

WEEK 2: The Java Class Library 219

8 Data Structures 221

Moving Beyond Arrays 222

Java Structures 222

Iterator 224

Bit Sets 225

Array Lists 228

Looping Through Data Structures 231

Stacks 233

Map 235

Hash Maps 236

Generics 241

Summary 245

Q&A 245

Quiz 246

Questions 246

Certification Practice 246

Exercises 247

9 Working with Swing 249

Creating an Application 250

Creating an Interface 251

Developing a Framework 254

Creating a Component 255

Adding Components to a Container 256

Working with Components 258

Image Icons 259

Labels 261

Text Fields 262

Text Areas 263

Scrolling Panes 265

Check Boxes and Radio Buttons 266

Combo Boxes 269

Lists 271

Summary 273

Q&A 273

Quiz 274

Questions 274

Certification Practice 274

Exercises 275

10 Building a Swing Interface 277

Swing Features 278

Standard Dialog Boxes 278

Using Dialog Boxes 283

Sliders 286

Scroll Panes 288

Toolbars 289

Progress Bars 292

Menus 295

Tabbed Panes 299

Summary 301

Q&A 301

Quiz 302

Questions 302

Certification Practice 303

Exercises 304

11 Arranging Components on a User Interface 305

Basic Interface Layout 306

Laying Out an Interface 306

Flow Layout 307

Box Layout 309

Grid Layout 311

Border Layout 314

Mixing Layout Managers 316

Card Layout 317

Using Card Layout in an Application 319

Grid Bag Layout 325

Designing the Grid 327

Creating the Grid 329

Cell Padding and Insets 334

Summary 335

Q&A 335

Quiz 336

Questions 336

Certification Practice 337

Exercises 338

12 Responding to User Input 339

Event Listeners 340

Setting Up Components 341

Event-Handling Methods 342

Working with Methods 345

Action Events 345

Focus Events 346

Item Events 349

Key Events 351

Mouse Events 352

Mouse Motion Events 352

Window Events 357

Using Adapter Classes 357

Using Inner Classes 359

Summary 362

Q&A 362

Quiz 363

Questions 363

Certification Practice 363

Exercises 365

13 Creating Java2D Graphics 367

The Graphics2D Class 368

The Graphics Coordinate System 369

Drawing Text 370

Improving Fonts and Graphics with Antialiasing 372

Finding Information About a Font 372

Color 375

Using Color Objects 375

Testing and Setting the Current Colors 376

Drawing Lines and Polygons 377

User and Device Coordinate Spaces 377

Specifying the Rendering Attributes 378

Creating Objects to Draw 381

Drawing Objects 384

Summary 387

Q&A 387

Quiz 388

Questions 388

Certification Practice 388

Exercises 389

14 Developing Swing Applications 391

Java Web Start 392

Using Java Web Start 395

Creating a JNLP File 396

Supporting Web Start on a Server 405

Additional JNLP Elements 406

Improving Performance with SwingWorker 408

Summary 413

Q&A 414

Quiz 414

Questions 414

Certification Practice 415

Exercises 416

WEEK 3: Java Programming 417

15 Working with Input and Output 419

Introduction to Streams 420

Using a Stream 420

Filtering a Stream 421

Handling Exceptions 421

Byte Streams 422

File Streams 422

Filtering a Stream 426

Byte Filters 427

Character Streams 436

Reading Text Files 436

Writing Text Files 439

Files and Paths 440

Summary 443

Q&A 443

Quiz 444

Questions 444

Certification Practice 445

Exercises 446

16 Serializing and Examining Objects 447

Object Serialization 448

Object Output Streams 449

Object Input Streams 452

Transient Variables 455

Checking an Object’s Serialized Fields 456

Inspecting Classes and Methods with Reflection 457

Inspecting and Creating Classes 457

Working with Each Part of a Class 459

Inspecting a Class 461

Summary 463

Q&A 463

Quiz 464

Questions 464

Certification Practice 465

Exercises 465

17 Communicating Across the Internet 467

Networking in Java 468

Opening a Stream Over the Net 468

Sockets 473

Socket Servers 476

Testing the Server 479

The java.nio Package 481

Buffers 481

Channels 485

Summary 495

Q&A 496

Quiz 496

Questions 496

Certification Practice 497

Exercises 498

18 Accessing Databases with JDBC 4.1 and Derby 499

Java Database Connectivity 500

Database Drivers 501

Examining a Database 501

Reading Records from a Database 503

Writing Records to a Database 509

Moving Through Resultsets 516

Summary 517

Q&A 518

Quiz 518

Questions 518

Certification Practice 519

Exercises 519

19 Reading and Writing RSS Feeds 521

Using XML 522

Designing an XML Dialect 525

Processing XML with Java 526

Processing XML with XOM 526

Creating an XML Document 528

Modifying an XML Document 532

Formatting an XML Document 536

Evaluating XOM 538

Summary 540

Q&A 541

Quiz 542

Questions 542

Certification Practice. 542

Exercises 543

20 XML Web Services 545

Introduction to XML-RPC 546

Communicating with XML-RPC 547

Sending a Request 548

Responding to a Request 549

Choosing an XML-RPC Implementation 550

Using an XML-RPC Web Service 552

Creating an XML-RPC Web Service 555

Summary 560

Q&A 561

Quiz 561

Questions 561

Certification Practice 562

Exercises 563

21 Writing Android Apps for Java 565

The History of Android 566

Writing an Android App 567

Organizing an Android Project 569

Creating the Program 570

Using an Android Emulator 573

Creating a Debug Configuration 574

Running the App 575

Designing an Android App 577

Preparing Resources 578

Configuring a Manifest File 582

Designing the Graphical User Interface 582

Writing Code 585

Summary 591

Q&A 591

Quiz 592

Questions 592

Certification Practice 592

Exercises 592

Appendixes 593

A Using the NetBeans Integrated Development Environment 595

B This Book’s Website 603

C Setting Up an Android Development Environment 605

D Using the Java Development Kit 613

E Programming with the Java Development Kit 635

Quiz Answers 659

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