Java Programming 英文版PDF电子书下载

CHAPTER 1 The Java Programming Environment1.1 History of Java 2

1.2 Preparing to Write Java Programs 2

1.3 A Simple Java Program 3

1.4 How to Run a Java Program? 4

1.5 Commonly Encountered Problems 5

Workshops 5

Workshop 1.1:Preparing the Environment for Java Programming 5

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

Exercises 13

CHAPTER 2 The Java Language Components 17

2.1 Print2Numbers Java Program 17

2.2 The Java Vocabulary and Character Sets 19

2.3 Primitive Data Types 19

2.3.1 Boolean 20

2.3.2 Characters 20

2.3.3 Integers 21

2.3.4 Floating Point 22

2.3.5 Object References 22

2.3.6 String 22

2.4 Identifiers 22

2.5 Reserved Words 23

2.6 Comments 24

2.7 Basic Program Structure 25

Workshops 26

Workshop 2.1:Understanding the Sequence of Program Execution 26

Exercises 28

CHAPTER 3 Expressions,Statements and Operators3.1 Expression Statements 31

3.1.1 Types of Expressions 31

3.1.2 Assignment Expression Statements 31

3.1.3 Prefix or Postfix Forms of“++”and“--”Statements 32

3.1.4 Method Call Statements 32

3.1.5 Object Creation Statements 32

3.2 Declaration Statements 33

3.3 Operators 33

3.3.1 Arithmetic Operators 34

3.3.2 Auto-Increment and Auto-Decrement Operators 35

3.3.3 Logical Operators 35

3.3.4 Relational Operators 37

3.3.5 Bitwise Operators 39

3.3.6 The Conditional Operator“?:” 40

3.3.7 Assignment Operators 41

3.3.8 “+”Operator 43

3.3.9 “.”Operator 44

3.3.10 Precedence and Associativity 44

Workshops 47

Workshop 3.1:Entering Data for Program Execution 47

Exercises 53

CHAPTER 4 Program Flow Controls 56

4.1 Sequence 56

4.2 Selection 57

4.2.1 Block 57

4.2.2 Types of Selection Statements 59

4.3 Iteration 64

4.3.1 The while Statement 64

4.3.2 The do-while Statement 66

4.3.3 The for Statement 67

4.3.4 The Enhanced 'for' Statement 70

4.4 Labels 70

4.5 The break Statement 71

4.6 The continue Statement 71

Exercises 71

CHAPTER 5 Arrays 75

5.1 Array 75

5.1.1 Declaring and Creating an Array 75

5.1.2 Initializing an Array 77

5.1.3 Using Arrays 77

5.2 Two-dimensional Arrays 79

5.2.1 One-dimensional Array Approach 79

5.2.2 Two-dimensional Array Approach 80

5.2.3 Populating Two-dimensional Arrays 82

5.3 Applying the Enhanced 'for' Statement in Arrays 83

5.4 An Application:Printing Numbers Divisible by 3 84

5.4.1 Using Label and break Statement 85

5.4.2 Using continue Statement 88

Workshops 90

Workshop 5.1:Copying Arrays 90

Exercises 96

CHAPTER 6 Methods 98

6.1 Defining a Problem 98

6.2 A Problem Solving Approach 99

6.3 Improving the Problem-Solving Approach 103

6.3.1 Advantage of Using Methods 107

6.3.2 Walking Through readInputValues() Method 107

6.3.3 Walking Through convertMarksToGrades() Method 107

6.3.4 Walking Through printDetails() Method 107

6.4 Block Structure and Scope 108

6.4.1 Local Variables 108

6.4.2 Global Variables 109

6.4.3 Determining Scope of Variables across Methods 110

6.4.4 Distinguishing Local Variables from Global Variables 111

6.4.5 Scope of Identifier Declaration 112

6.5 Parameters 113

6.5.1 Actual and Formal Parameters 113

6.5.2 Value Parameters 117

6.6 Methods that Return Values 119

6.6.1 Returning Values 119

6.6.2 The return Statement 121

Workshops 121

Workshop 6.1:Using Methods 121

Exercises 125

CHAPTER 7 Class and Objects 128

7.1 Class and Objects 128

7.2 Constructing Objects 128

7.2.1 Constructors 129

7.2.2 Multiple Constructor Method Definition 131

7.2.3 Constructor Method Invocation 133

7.3 Instance and Class Variables 134

7.4 Instance and Class Methods 135

7.4.1 Instance Methods 135

7.4.2 Class Methods 136

7.5 Constants 138

7.6 The this Keyword 139

7.6.1 Using this Keyword in Instance Method 140

7.6.2 Using this Keyword in Constructor 141

7.7 Inner Class 141

7.7.1 Compiling an Inner Class 142

7.7.2 Static Inner Class 143

7.7.3 Creating Inner Class Objects 143

7.8 Class Hierarchy 143

7.8.1 Superclass and Subclass 144

7.8.2 Inheritance 146

Workshops 148

Workshop 7.1:Implementing Class and Objects 148

Exercises 153

CHAPTER 8 The Java Application Programming Interface(API)8.1 Java Package 157

8.1.1 The'package'Keyword 158

8.1.2 The'import'Keyword 159

8.1.3 File Name of a Public Class 161

8.2 The JavaTM Platform Standard Edition 162

8.3 The Java API 162

8.3.1 The Java API Documentation 163

8.3.2 The Java API Packages 164

8.3.3 Directory Structure of Java API Packages 167

8.3.4 The java.lang,java.io,and java.util Packages 168

8.3.5 Reading the Java API Documentation 168

8.3.6 Using the Java API 169

8.4 The Ubiquitous System.out.println() Method 170

8.4.1 The System Class 170

8.4.2 The PrintStream Class 171

8.5 String Tokenizers 173

8.5.1 The java.util.StringTokenizer Class 173

8.5.2 Delimiter Characters 175

Exercises 176

CHAPTER 9 Inputs and Outputs 178

9.1 Input and Output Streams 178

9.1.1 Screen Outputs 178

9.1.2 Keyboard Inputs 179

9.1.3 Reading and Displaying Texts 180

9.2 Exception Handling 181

9.2.1 Java Exception Handling 181

9.2.2 Explicit Exception Handling 182

9.3 The Scanner Class 185

9.3.1 Creating a Scanner Object 186

9.3.2 Handling Numerical Data Types 186

9.3.3 Handling String Values 186

9.3.4 Handling Boolean Values 186

9.3.5 Exceptions and Delimiters 187

9.3.6 A Scanner Class Application 188

Exercises 190

CHAPTER 10 File Handling 193

10.1 Text Files 193

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 Files 196

Exercises 198

CHAPTER 11 Inheritance 199

11.1 The Inheritance Mechanism 199

11.1.1 Subclass and Superclass 199

11.1.2 java.lang.Object Class 200

11.1.3 Downward Property Propagation 200

11.2 Demonstrating Inheritance 200

11.3 The super Keyword 202

11.3.1 Syntax 202

11.3.2 Constructor Chaining 203

11.3.3 Calling Superclass Methods 205

11.4 Method Overriding 205

Exercises 207

CHAPTER 12 Encapsulation 216

12.1 Access Modifiers:public,protected,private 216

12.1.1 Using Access Modifiers 216

12.1.2 Accessibility Effects 217

12.2 Data Field Encapsulation 218

12.3 Class Abstraction 219

12.4 Class Encapsulation 220

12.4.1 Encapsulating a Class 220

12.4.2 Enhanced Maintainability 222

12.4.3 Bundling and Information Hiding 225

Exercises 226

CHAPTER 13 Polymorphism 229

13.1 Illustrating Polymorphism with Geometric Shapes 229

13.1.1 The Triangle Class 230

13.1.2 The Rectangle Class 231

13.1.3 The GeometricShape Class 233

13.1.4 The User Class:GeometricShapeMain Class 234

13.2 Abstract Class 235

13.3 Dynamic Binding 236

Exercises 237

CHAPTER 14 Interface 239

14.1 The Interface Construct 239

14.2 Interface Definition 239

14.2.1 Interface Declaration and Interface Body 240

14.2.2 Compilation of Interface 241

14.2.3 Implementing Interface 241

14.3 Understanding the Use of Interface 243

14.4 What and How in the Use of Interface 244

14.5 Application of Interface 245

14.5.1 Sales Person Application 245

14.5.2 SalesPerson and Employee Class 247

14.5.3 Sort by Age:The main() Method 1 248

14.5.4 Sort by Name:The main() Method 2 250

14.5.5 Sort by Wage:The main() Method 3 251

14.5.6 The Output 251

14.6 The Serializable Interface 252

14.7 Interface and Abstract Class 257

14.8 Changes in Interface 257

14.9 Uses of Interface 258

Exercises 258

CHAPTER 15 Sorting,Searching,and Recursion15.1 Sorting 264

15.1.1 Selection Sort 264

15.1.2 Bubble Sort 267

15.1.3 A Sorting Application 269

15.2 Searching 273

15.2.1 Linear Search 273

15.2.2 Binary Search 274

15.2.3 A Searching Application 276

15.3 Recursion 280

15.3.1 Recursive Method 281

15.3.2 Writing a Recursive Method 284

15.3.3 The Ubiquitous Factorial 284

15.3.4 Applying Recursion 285