Beginning Java 8 Fundamentals 无水印pdf

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Beginning Java 8 Fundamentals

Beginning Java 8 Fundamentals provides a comprehensive approach to learning the Java

programming language, especially the object-oriented fundamentals necessary at all levels

of Java development.

Author Kishori Sharan provides over 90 diagrams and 240 complete programs to help

beginners and intermediate level programmers learn the topics faster. Starting with basic

programming concepts, the author walks you through writing your first Java program

step-by-step. Armed with that practical experience, you’ll be ready to learn the core of the

Java language.

The book continues with a series of foundation topics, including using data types, working

with operators, and writing statements in Java. These basics lead onto the heart of the

Java language: object-oriented programming. By learning topics such as classes, objects,

interfaces, and inheritance you’ll have a good understanding of Java’s object-oriented model.

The final collection of topics takes what you’ve learned and turns you into a real Java

programmer. You’ll see how to take the power of object-oriented programming and write

programs that can handle errors and exceptions, process strings and dates, format data, and

work with arrays to manipulate data.

You’ll learn:

• How to write your first Java programs with an emphasis on learning

object-oriented programming in Java

• How to use data types, operators, statements, classes and objects

• How to work with exception handling, assertions, strings and dates, and

object formatting

• How to use regular expressions

• How to master arrays, interfaces, enums, and inheritance

• How to deploy Java applications on memory-constrained devices

using compact profiles

9781430 266525

54999

ISBN 978-1-4302-6652-5

SOURCE CODE ONLINE

Contents at a Glance

Foreword �� xxv

About the Author �� xxvii

About the Technical Reviewer �� xxix

Acknowledgments �� xxxi

Introduction �� xxxiii

Chapter 1: Programming Concepts ■ ��1

Chapter 2: Writing Java Programs ■ ��31

Chapter 3: Data Types ■ ��61

Chapter 4: Operators ■ ��99

Chapter 5: Statements ■ ��139

Chapter 6: Classes and Objects ■ ��165

Chapter 7: The Object and Objects Classes ■ ��281

Chapter 8: Wrapper Classes ■ ��317

Chapter 9: Exception Handling ■ ��335

Chapter 10: Assertions ■ ��379

Chapter 11: Strings ■ ��387

Chapter 12: Dates and Times ■ ��411

Chapter 13: Formatting Data ■ ��485

Chapter 14: Regular Expressions ■ ��519

Chapter 15: Arrays ■ ��543

■ Contents at a GlanCe

Chapter 16: Inheritance ■ ��583

Chapter 17: Interfaces ■ ��643

Chapter 18: Enum Types ■ ��705

Appendix A: Character Encodings ■ ��727

Appendix B: Documentation Comments ■ ��739

Appendix C: Compact Proﬁles ■ ��759

Index ��775

xxxiii

Introduction

How This Book Came About

My rst encounter with the Java programming language was during a one-week Java training session in 1997. I did

not get a chance to use Java in a project until 1999. I read two Java books and took a Java 2 Programmer certication

examination. I did very well on the test, scoring 95 percent. e three questions that I missed on the test made me

realize that the books that I had read did not adequately cover details of all the topics necessary about Java. I made up

my mind to write a book on the Java programming language. So, I formulated a plan to cover most of the topics that a

Java developer needs to use the Java programming language eectively in a project, as well as to get a certication.

I initially planned to cover all essential topics in Java in 700 to 800 pages.

As I progressed, I realized that a book covering most of the Java topics in detail could not be written in 700 to

800 hundred pages. One chapter alone that covered data types, operators, and statements spanned 90 pages. I was

then faced with the question, “Should I shorten the content of the book or include all the details that I think a Java

developer needs?” I opted for including all the details in the book, rather than shortening its content to keep the

number of pages low. It has never been my intent to make lots of money from this book. I was never in a hurry to

nish this book because that rush could have compromised the quality and the coverage of its contents. In short, I

wrote this book to help the Java community understand and use the Java programming language eectively, without

having to read many books on the same subject. I wrote this book with the plan that it would be a comprehensive one-

stop reference for everyone who wants to learn and grasp the intricacies of the Java programming language.

One of my high school teachers used to tell us that if one wanted to understand a building, one must rst

understand the bricks, steel, and mortar that make up the building. e same logic applies to most of the things that

we want to understand in our lives. It certainly applies to an understanding of the Java programming language. If you

want to master the Java programming language, you must start by understanding its basic building blocks. I have used

this approach throughout this book, endeavoring to build each topic by describing the basics rst. In the book, you

will rarely nd a topic described without rst learning its background. Wherever possible, I have tried to correlate

the programming practices with activities in our daily life. Most of the books about the Java programming language

available in the market either do not include any pictures at all or have only a few. I believe in the adage, “A picture is

worth a thousand words.” To a reader, a picture makes a topic easier to understand and remember. I have included

plenty of illustrations in the book to aid readers in understanding and visualizing the contents. Developers who have

little or no programming experience have diculty in putting things together to make it a complete program. Keeping

them in mind, the book contains over 240 complete Java programs that are ready to be compiled and run.

I spent countless hours doing research for writing this book. My main source of research was the Java Language

Specication, white papers and articles on Java topics, and Java Specication Requests (JSRs). I also spent quite a bit

of time reading the Java source code to learn more about some of the Java topics. Sometimes, it took a few months

researching a topic before I could write the rst sentence on the topic. Finally, it was always fun to play with Java

programs, sometimes for hours, to add them to the book.

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