Sams Teach Yourself Java in 21 Days (Covers Java 11/12), 8th edition

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
    How This Book Is Organized ....................................................................................................2
    Who Should Read This Book ...................................................................................................4
    Conventions Used in This Book ...............................................................................................5
PART I The Java Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
LESSON 1: Getting Started with Java 9
    The Java Language ..................................................................................................................10
    Object-Oriented Programming ................................................................................................13
    Objects and Classes .................................................................................................................14
    Attributes and Behavior ..........................................................................................................16
    Organizing Classes and Class Behavior ..................................................................................25
    Summary .................................................................................................................................32
    Q&A ........................................................................................................................................33
    Quiz .........................................................................................................................................34
    Certification Practice ...............................................................................................................35
    Exercises ..................................................................................................................................35
LESSON 2: The ABCs of Programming 37
    Statements and Expressions ....................................................................................................38
    Variables and Data Types ........................................................................................................38
    Comments................................................................................................................................46
    Literals .....................................................................................................................................47
    String Literals ...............................................................................................................50
    Expressions and Operators ......................................................................................................51
    String Arithmetic .....................................................................................................................60
    Summary .................................................................................................................................62
    Q&A ........................................................................................................................................62
    Quiz .........................................................................................................................................63
    Certification Practice ...............................................................................................................64
    Exercises ..................................................................................................................................65
LESSON 3: Working with Objects 67
    Creating New Objects .............................................................................................................68
    Using Class and Instance Variables ........................................................................................72
    Calling Methods ......................................................................................................................75
    Class Methods ..............................................................................................................79
    References to Objects ..............................................................................................................80
    Casting Objects and Primitive Types ......................................................................................82
    Converting Primitive Types to Objects and Vice Versa ................................................85
    Comparing Object Values and Classes ....................................................................................87
    Summary .................................................................................................................................89
    Q&A ........................................................................................................................................90
    Quiz .........................................................................................................................................91
    Certification Practice ...............................................................................................................91
    Exercises ..................................................................................................................................92
LESSON 4: Lists, Logic, and Loops 93
    Arrays ......................................................................................................................................94
    Block Statements ...................................................................................................................101
    if Conditionals .....................................................................................................................102
    Switch Conditionals ..............................................................................................................103
    The Ternary Operator ............................................................................................................110
    for Loops ..............................................................................................................................111
    while and do Loops ..............................................................................................................114
    xii Sams Teach Yourself Java in 21 Days
    Breaking Out of Loops ..........................................................................................................117
    Summary ...............................................................................................................................119
    Q&A ......................................................................................................................................119
    Quiz .......................................................................................................................................120
    Certification Practice .............................................................................................................121
    Exercises ................................................................................................................................122
LESSON 5: Creating Classes and Methods 123
    Defining Classes ....................................................................................................................124
    Creating Instance and Class Variables ..................................................................................124
    Creating Methods ..................................................................................................................126
    Creating Java Applications ....................................................................................................133
    Java Applications and Arguments .........................................................................................134
    Creating Methods with the Same Name ...............................................................................137
    Constructors ..........................................................................................................................142
    Overriding Methods ..............................................................................................................146
    Summary ...............................................................................................................................150
    Q&A ......................................................................................................................................151
    Quiz .......................................................................................................................................152
    Certification Practice .............................................................................................................153
    Exercises ................................................................................................................................154
LESSON 6: Packages, Interfaces, and Other Class Features 155
    Modifiers ...............................................................................................................................156
    Static Variables and Methods ................................................................................................162
    Final Classes, Methods, and Variables ..................................................................................165
    Abstract Classes and Methods ..............................................................................................167
    Packages ................................................................................................................................167
    Creating Your Own Packages ................................................................................................171
    Interfaces ...............................................................................................................................174
    Creating and Extending Interfaces ........................................................................................177
    Summary ...............................................................................................................................185
    Q&A ......................................................................................................................................186
    Quiz .......................................................................................................................................186
    Certification Practice .............................................................................................................187
    Exercises ................................................................................................................................188
LESSON 7: Exceptions and Threads 189
    Exceptions .............................................................................................................................190
    Managing Exceptions ............................................................................................................193
    Declaring Methods That Might Throw Exceptions ..............................................................200
    Creating and Throwing Exceptions .......................................................................................205
    When Not to Use Exceptions ................................................................................................208
    Threads ..................................................................................................................................209
    Summary ...............................................................................................................................216
    Q&A ......................................................................................................................................217
    Quiz .......................................................................................................................................217
    Certification Practice .............................................................................................................218
    Exercises ................................................................................................................................219
PART II: The Java Class Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221
LESSON 8: Data Structures 223
    Moving Beyond Arrays .........................................................................................................224
    Java Structures .......................................................................................................................224
    Generics .................................................................................................................................244
    Enumerations .........................................................................................................................247
    Summary ...............................................................................................................................249
    Q&A ......................................................................................................................................249
    Quiz .......................................................................................................................................250
    Certification Practice .............................................................................................................251
    Exercises ................................................................................................................................252
LESSON 9: Creating a Graphical User Interface 253
    Creating an Application ........................................................................................................254
    Working with Components ...................................................................................................261
    Lists .......................................................................................................................................274
    The Java Class Library ..........................................................................................................276
    Summary ...............................................................................................................................278
    Q&A ......................................................................................................................................279
    Quiz .......................................................................................................................................279
    Certification Practice .............................................................................................................280
    Exercises ................................................................................................................................281
LESSON 10: Building an Interface 283
    Swing Features ......................................................................................................................284
    Summary ...............................................................................................................................304
    Q&A ......................................................................................................................................304
    Quiz .......................................................................................................................................305
    Certification Practice .............................................................................................................306
    Exercises ................................................................................................................................307
LESSON 11: Arranging Components on a User Interface 309
    Basic Interface Layout ..........................................................................................................310
    Mixing Layout Managers ......................................................................................................320
    Card Layout ...........................................................................................................................321
    Summary ...............................................................................................................................329
    Q&A ......................................................................................................................................330
    Quiz .......................................................................................................................................331
    Certification Practice .............................................................................................................331
    Exercises ................................................................................................................................332
LESSON 12: Responding to User Input 333
    Event Listeners ......................................................................................................................334
    Working with Methods ..........................................................................................................339
    Using Inner Classes ....................................................................................................353
    Summary ...............................................................................................................................355
    Q&A ......................................................................................................................................355
    Quiz .......................................................................................................................................356
    Certification Practice .............................................................................................................357
    Exercises ................................................................................................................................358
LESSON 13: Creating Java2D Graphics 359
    The Graphics2D Class ..........................................................................................................360
    Drawing Text .........................................................................................................................362
    Color ......................................................................................................................................366
    Drawing Lines and Polygons ................................................................................................369
    Summary ...............................................................................................................................378
    Q&A ......................................................................................................................................379
    Quiz .......................................................................................................................................379
    Certification Practice .............................................................................................................380
    Exercises ................................................................................................................................381
LESSON 14: Developing Swing Applications 383
    Improving Performance with SwingWorker .........................................................................384
    Grid Bag Layout ....................................................................................................................389
    Summary ...............................................................................................................................398
    Q&A ......................................................................................................................................398
    Quiz .......................................................................................................................................398
    Certification Practice .............................................................................................................399
    Exercises ................................................................................................................................400
PART III: Java Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .401
LESSON 15: Using Inner Classes and Lambda Expressions 403
    Inner Classes .........................................................................................................................404
    Lambda Expressions .............................................................................................................413
    Variable Type Inference ........................................................................................................418
    Summary ...............................................................................................................................419
    Q&A ......................................................................................................................................420
    Quiz .......................................................................................................................................420
    Certification Practice .............................................................................................................421
    Exercises ................................................................................................................................422
LESSON 16: Working with Input and Output 423
    Introduction to Streams .........................................................................................................424
    Byte Streams .........................................................................................................................426
    Filtering a Stream ..................................................................................................................431
    Character Streams .................................................................................................................440
    Files and Paths.......................................................................................................................445
    Summary ...............................................................................................................................447
    Q&A ......................................................................................................................................448
    Quiz .......................................................................................................................................448
    Certification Practice .............................................................................................................449
    Exercises ................................................................................................................................450
LESSON 17: Communicating Over HTTP 451
    Networking in Java ................................................................................................................452
    The java.nio Package .........................................................................................................465
    Summary ...............................................................................................................................480
    Q&A ......................................................................................................................................480
    Quiz .......................................................................................................................................481
    Certification Practice .............................................................................................................482
    Exercises ................................................................................................................................482
LESSON 18: Accessing Databases with JDBC and Derby 483
    Java Database Connectivity...................................................................................................484
    Summary ...............................................................................................................................501
    Q&A ......................................................................................................................................502
    Quiz .......................................................................................................................................502
    Certification Practice .............................................................................................................503
    Exercises ................................................................................................................................503
LESSON 19: Reading and Writing RSS Feeds 505
    Using XML ...........................................................................................................................506
    Designing an XML Dialect ...................................................................................................508
    Processing XML with Java ...................................................................................................510
    Processing XML with XOM .................................................................................................510
    Summary ...............................................................................................................................525
    Q&A ......................................................................................................................................525
    Quiz .......................................................................................................................................526
    Certification Practice .............................................................................................................527
    Exercises ................................................................................................................................528
LESSON 20: Making Web Service Requests 529
    Introduction to XML-RPC ....................................................................................................530
    Communicating with XML-RPC ..........................................................................................531
    Choosing an XML-RPC Implementation .............................................................................534
    Using an XML-RPC Web Service ........................................................................................536
    Creating an XML-RPC Web Service ....................................................................................539
    Summary ...............................................................................................................................545
    Q&A ......................................................................................................................................545
    Quiz .......................................................................................................................................546
    Certification Practice .............................................................................................................546
    Exercises ................................................................................................................................547
LESSON 21: Writing a Game with Java 549
    Playing a Game .....................................................................................................................550
    Summary ...............................................................................................................................572
    Q&A ......................................................................................................................................572
    Quiz .......................................................................................................................................573
    Certification Practice .............................................................................................................574
    Exercises ................................................................................................................................575
APPENDIXES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 597
APPENDIX A: Using the NetBeans Integrated Development Environment . . . . . . 599
APPENDIX B: Fixing Package Not Visible Errors in NetBeans . . . . . . . . . . . . . . . . 609
APPENDIX C: This Book’s Website. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 613
APPENDIX D: Using the Java Development Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . 615
APPENDIX E: Programming with the Java Development Kit . . . . . . . . . . . . . . . . . 631
9780672337956, TOC, 11/18/2019