現代計算機教育系列教材（英文版）‧國外著名大學教授鼎力之作：Java 程序設計（英文版）

This book teaches the fundamentals of Java and object-oriented programmingusing the programming language Java. Designed for readers with no priorknowledge in computer programming， this book is unassuming and is most suitablefor teaching Java and object-oriented programming in a progressive manner. It is abook crafted with the novice in mind. Complete source code is provided in everyexample. Where applicable， screen-shots showing the development of applicationprograms are included to help readers in their practices. If you have no knowledgein writing computer programs and would like a book to guide you in theprogramming process， then this book is right for you！
　　Topics covered include： the Java programming environment; the Javalanguage components which include variables; data structures; data types and theirdeclaration; expressions， statements， and operators; program flow controlmechanisms; arrays; methods; inputs and outputs; file handling; object-orientedprogramming concepts such as inheritance encapsulation， and polymorphism;interface; and sort， search and recursion techniques. The book also covers the JavaApplication Programming Interface （API） - a rich Java class library.

　　Dr. Danny Poo graduated with a BSc （Hons）， MSc and PhDin Computer Science from the University of Manchester Institute ofScience and Technology （UMIST）， England. He is currently atenured Associate Professor in Me Department of Information Sys-tems， National University of Singapore. He has taught courses inSystems Analysis and Design， Enterprise Systems Development，Object-Oriented Software Engineering， and Information TechnologyProject Management. He is a Steering Committee Member of the Asia-Pacific Soft-ware Engineering Conference and founder and director of CicadaCube Pte Ltd， an NUS spin-off company specializing in Enterprise-level Search and RetrievalSolutions. A well-known speaker in seminars， he has conducted numerous in-house trainingand consultancy for organizations both locally and regionally. Dr. Poo is the author of 5 books： " Object-Oriented Programming andJava"， 2nd edition， Springer-Verlag， 2007; "Developing Systems Using J2EE "，PrenticeHall， 2004， "Learn To Program Java"， 4th edition， Cengage Learning， 2009 ;"Learn To Program Java User Interface"， Thomson Learning， 2006 ; and "Learn ToProgram Enterprise JavaBeans 3.0"， 3rd edition， Cengage Learning， 2009.

CHAPTER 1 The Java Programming Environment
1.1 History of Java2
1.2 Preparing to Write Java Programs2
1.3 A Simple Java Program3
1.4 How to Run a Java Program?4
1.5 Commonly Encountered Problems5
Workshops5
Workshop 1.1： Preparing the Environment for Java Programming5
Workshop 1.2： How to Run a Java Program?10
Workshop 1.3： How to Compile and Run a Java Program in DOS Prompt?12
Exercises13

CHAPTER 2 The Java Language Components
2.1 Print2Numbers Java Program17
2.2 The Java Vocabulary and Character Sets19
2.3 Primitive Data Types19
2.3.1 Boolean20
2.3.2 Characters20
2.3.3 Integers21
2.3.4 Floating Point22
2.3.5 Object References22
2.3.6 String22
2.4 Identifiers22
2.5 Reserved Words23
2.6 Comments24
2.7 Basic Program Structure25
Workshops26
Workshop 2.1： Understanding the Sequence of Program Execution26
Exercises28

CHAPTER 3 Expressions， Statements and Operators
3.1 Expression Statements31
3.1.1 Types of Expressions31
3.1.2 Assignment Expression Statements31
3.1.3 Prefix or Postfix Forms of "++" and "——" Statements32
3.1.4 Method Call Statements32
3.1.5 Object Creation Statements32
3.2 Declaration Statements33
3.3 Operators33
3.3.1 Arithmetic Operators34
3.3.2 Auto-Increment and Auto-Decrement Operators35
3.3.3 Logical Operators35
3.3.4 Relational Operators37
3.3.5 Bitwise Operators39
3.3.6 The Conditional Operator "?：" 40
3.3.7 Assignment Operators41
3.3.8 "+" Operator43
3.3.9 "." Operator44
3.3.10 Precedence and Associativity44
Workshops47
Workshop 3.1： Entering Data for Program Execution47
Exercises53

CHAPTER 4 Program Flow Controls
4.1 Sequence56
4.2 Selection57
4.2.1 Block57
4.2.2 Types of Selection Statements59
4.3 Iteration64
4.3.1 The while Statement64
4.3.2 The do-while Statement66
4.3.3 The for Statement67
4.3.4 The Enhanced『for' Statement70
4.4 Labels70
4.5 The break Statement71
4.6 The continue Statement71
Exercises71

CHAPTER 5 Arrays
5.1 Array75
5.1.1 Declaring and Creating an Array75
5.1.2 Initializing an Array77
5.1.3 Using Arrays77
5.2 Two-dimensional Arrays79
5.2.1 One-dimensional Array Approach79
5.2.2 Two-dimensional Array Approach80
5.2.3 Populating Two-dimensional Arrays82
5.3 Applying the Enhanced『for' Statement in Arrays83
5.4 An Application： Printing Numbers Divisible by 384
5.4.1 Using Label and break Statement85
5.4.2 Using continue Statement88
Workshops90
Workshop 5.1： Copying Arrays90
Exercises96

CHAPTER 6 Methods
6.1 Defining a Problem98
6.2 A Problem Solving Approach99
6.3 Improving the Problem-Solving Approach103
6.3.1 Advantage of Using Methods107
6.3.2 Walking Through readInputValues() Method107
6.3.3 Walking Through convertMarksToGrades() Method107
6.3.4 Walking Through printDetails() Method107
6.4 Block Structure and Scope108
6.4.1 Local Variables108
6.4.2 Global Variables109
6.4.3 Determining Scope of Variables across Methods110
6.4.4 Distinguishing Local Variables from Global Variables111
6.4.5 Scope of Identifier Declaration112
6.5 Parameters113
6.5.1 Actual and Formal Parameters113
6.5.2 Value Parameters117
6.6 Methods that Return Values119
6.6.1 Returning Values119
6.6.2 The return Statement121
Workshops121
Workshop 6.1： Using Methods121
Exercises125

CHAPTER 7 Class and Objects
7.1 Class and Objects128
7.2 Constructing Objects128
7.2.1 Constructors129
7.2.2 Multiple Constructor Method Definition131
7.2.3 Constructor Method Invocation133
7.3 Instance and Class Variables134
7.4 Instance and Class Methods135
7.4.1 Instance Methods135
7.4.2 Class Methods136
7.5 Constants138
7.6 The this Keyword139
7.6.1 Using this Keyword in Instance Method140
7.6.2 Using this Keyword in Constructor141
7.7 Inner Class141
7.7.1 Compiling an Inner Class142
7.7.2 Static Inner Class143
7.7.3 Creating Inner Class Objects143
7.8 Class Hierarchy143
7.8.1 Superclass and Subclass144
7.8.2 Inheritance146
Workshops148
Workshop 7.1： Implementing Class and Objects148
Exercises153

CHAPTER 8 The Java Application Programming Interface (API)
8.1 Java Package157
8.1.1 The 『package' Keyword158
8.1.2 The 『import' Keyword159
8.1.3 File Name of a Public Class161
8.2 The JavaTM Platform Standard Edition 162
8.3 The Java API 162
8.3.1 The Java API Documentation163
8.3.2 The Java API Packages164
8.3.3 Directory Structure of Java API Packages167
8.3.4 The java.lang， java.io， and java.util Packages168
8.3.5 Reading the Java API Documentation168
8.3.6 Using the Java API169
8.4 The Ubiquitous System.out.println() Method170
8.4.1 The System Class170
8.4.2 The PrintStream Class171
8.5 String Tokenizers173
8.5.1 The java.util.StringTokenizer Class 173
8.5.2 Delimiter Characters 175
Exercises176

CHAPTER 9 Inputs and Outputs
9.1 Input and Output Streams178
9.1.1 Screen Outputs178
9.1.2 Keyboard Inputs179
9.1.3 Reading and Displaying Texts 180
9.2 Exception Handling181
9.2.1 Java Exception Handling 181
9.2.2 Explicit Exception Handling 182
9.3 The Scanner Class185
9.3.1 Creating a Scanner Object186
9.3.2 Handling Numerical Data Types186
9.3.3 Handling String Values186
9.3.4 Handling Boolean Values186
9.3.5 Exceptions and Delimiters187
9.3.6 A Scanner Class Application188
Exercises190

CHAPTER 10 File Handling
10.1 Text Files193
10.1.1 Writing to a Text File 193
10.1.2 Appending Texts to a File 195
10.1.3 Reading from a File 195
10.2 Binary Files196
Exercises198

CHAPTER 11 Inheritance
11.1 The Inheritance Mechanism199
11.1.1 Subclass and Superclass199
11.1.2 java.lang.Object Class200
11.1.3 Downward Property Propagation200
11.2 Demonstrating Inheritance200
11.3 The super Keyword202
11.3.1 Syntax202
11.3.2 Constructor Chaining203
11.3.3 Calling Superclass Methods205
11.4 Method Overriding205
Exercises207

CHAPTER 12 Encapsulation
12.1 Access Modifiers： public， protected， private216
12.1.1 Using Access Modifiers216
12.1.2 Accessibility Effects217
12.2 Data Field Encapsulation218
12.3 Class Abstraction 219
12.4 Class Encapsulation220
12.4.1 Encapsulating a Class220
12.4.2 Enhanced Maintainability222
12.4.3 Bundling and Information Hiding225
Exercises226

CHAPTER 13 Polymorphism
13.1 Illustrating Polymorphism with Geometric Shapes229
13.1.1 The Triangle Class230
13.1.2 The Rectangle Class231
13.1.3 The GeometricShape Class233
13.1.4 The User Class： GeometricShapeMain Class234
13.2 Abstract Class 235
13.3 Dynamic Binding236
Exercises237

CHAPTER 14 Interface
14.1 The Interface Construct239
14.2 Interface Definition239
14.2.1 Interface Declaration and Interface Body240
14.2.2 Compilation of Interface241
14.2.3 Implementing Interface241
14.3 Understanding the Use of Interface243
14.4 What and How in the Use of Interface244
14.5 Application of Interface245
14.5.1 Sales Person Application245
14.5.2 SalesPerson and Employee Class247
14.5.3 Sort by Age： The main() Method 1248
14.5.4 Sort by Name： The main() Method 2250
14.5.5 Sort by Wage： The main() Method 3251
14.5.6 The Output251
14.6 The Serializable Interface252
14.7 Interface and Abstract Class257
14.8 Changes in Interface257
14.9 Uses of Interface258
Exercises258

CHAPTER 15 Sorting， Searching， and Recursion
15.1 Sorting264
15.1.1 Selection Sort264
15.1.2 Bubble Sort267
15.1.3 A Sorting Application269
15.2 Searching273
15.2.1 Linear Search273
15.2.2 Binary Search274
15.2.3 A Searching Application276
15.3 Recursion280
15.3.1 Recursive Method281
15.3.2 Writing a Recursive Method284
15.3.3 The Ubiquitous Factorial284
15.3.4 Applying Recursion285