Sams Teach Yourself Java in 21 Days (Covers Java 11/12)

673 Pages·2020·9.934 MB·English

by  Rogers Cadenhead;

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d e
n m
LESSON 7 Exceptions aThreads LESSON 14 Developing Swing Applications LESSON 21 Writing a Gawith Java
d 2D
LESSON 6 Packages, Interfaces, anOther Class Features LESSON 13 Creating JavaGraphics LESSON 20 Making Web Service Requests
LESSON 5 Creating Classes and Methods LESSON 12 Responding to User Input LESSON 19 Reading and Writing RSS Feeds APPENDIX E Programming with the Java Development Kit
on ce a Kit
1 Days LESSON 4 Lists, Logic, and Loops LESSON 11 Arranging Components a User Interfa LESSON 18 Accessing Databases with JDBC and Derby APPENDIX D Using the JavDevelopment ptg28406312
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Java i™ LESSON 3 Working with Objects LESSON 10 Building an Interface LESSON 17 CommunicatinOver HTTP APPENDIX C This Book’s Website
hYourself a Language LESSON 2 The ABCs of Programming a Class Library LESSON 9 Creating aGraphical UserInterface ogramming LESSON 16 Working with Input and Output APPENDIX B Fixing Package Not Visible Errors in NetBeans
v v r
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TeaSams PART 1: The J LESSON 1 Getting Started with Java PART 2: The J LESSON 8 Data Structures PART 3: Java LESSON 15 Using Inner Classes and Lambda Expressions Appendixes APPENDIX A Using the NetBeans IDE
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ptg28406312
Rogers Cadenhead
SamsTeachYourself
Java
ptg28406312
in 21 Days
Eighth Edition
221 River Street
Hoboken, NJ 07030 USA
Sams Teach Yourself Java in 21 Days, Eighth Edition Editor-in-Chief
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Contents at a Glance
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
PART I The Java Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1 Getting Started with Java . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2 The ABCs of Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
3 Working with Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
4 Lists, Logic, and Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
5 Creating Classes and Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
6 Packages, Interfaces, and Other Class Features . . . . . . . . . . . . . . . . . . . . . . . . . .155
7 Exceptions and Threads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .189
PART II The Java Class Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221
8 Data Structures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223
9 Creating a Graphical User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .253
10 Building an Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .283
11 Arranging Components on a User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .309
12 Responding to User Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .333
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13 Creating Java2D Graphics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .359
14 Developing Swing Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .383
PART III Java Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .401
15 Using Inner Classes and Lambda Expressions. . . . . . . . . . . . . . . . . . . . . . . . . . . .403
16 Working with Input and Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .423
17 Communicating Over HTTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .451
18 Accessing Databases with JDBC and Derby. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .483
19 Reading and Writing RSS Feeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .505
20 Making Web Service Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .529
21 Writing a Game with Java. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .549
APPENDIXES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .577
A Using the NetBeans Integrated Development Environment . . . . . . . . . . . . . . . . . . .579
B Fixing Package Not Visible Errors in NetBeans. . . . . . . . . . . . . . . . . . . . . . . . . . . .589
C This Book’s Website . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .593
D Using the Java Development Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .595
E Programming with the Java Development Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .611
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .633
Table of Contents
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
History of the Language ...............................................................................................10
Introduction to Java ......................................................................................................11
Selecting a Development Tool ......................................................................................12
Object-Oriented Programming ................................................................................................13
Objects and Classes .................................................................................................................14
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Attributes and Behavior ..........................................................................................................16
Attributes of a Class of Objects ...................................................................................17
Behavior of a Class of Objects .....................................................................................18
Creating a Class ............................................................................................................18
Running the Program ....................................................................................................22
Organizing Classes and Class Behavior ..................................................................................25
Inheritance ....................................................................................................................25
Creating a Class Hierarchy ...........................................................................................27
Inheritance in Action ....................................................................................................29
Packages .......................................................................................................................31
Summary .................................................................................................................................32
Q&A ........................................................................................................................................33
Quiz .........................................................................................................................................34
Questions ......................................................................................................................34
Answers ........................................................................................................................34
Certification Practice ...............................................................................................................35
Exercises ..................................................................................................................................35
LESSON 2: The ABCs of Programming 37
Statements and Expressions ....................................................................................................38
Variables and Data Types ........................................................................................................38