Java核心技术卷(Core.Java.Volume.I.Fundamentals.11th.Edition.pdf)

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【核心代码】

Contents
Preface
Acknowledgments
Chapter 1: An Introduction to Java
1.1 Java as a Programming Platform
1.2 The Java “White Paper” Buzzwords
1.2.1 Simple
1.2.2 Object-Oriented
1.2.3 Distributed
1.2.4 Robust
1.2.5 Secure
1.2.6 Architecture-Neutral
1.2.7 Portable
1.2.8 Interpreted
1.2.9 High-Performance
1.2.10 Multithreaded
1.2.11 Dynamic
1.3 Java Applets and the Internet
1.4 A Short History of Java
1.5 Common Misconceptions about Java
Chapter 2: The Java Programming Environment
2.1 Installing the Java Development Kit
2.1.1 Downloading the JDK
2.1.2 Setting up the JDK
2.1.3 Installing Source Files and Documentation
2.2 Using the Command-Line Tools
2.3 Using an Integrated Development Environment
2.4 JShell
Chapter 3: Fundamental Programming Structures in Java
3.1 A Simple Java Program
3.2 Comments
3.3 Data Types
3.3.1 Integer Types
3.3.2 Floating-Point Types
3.3.3 The char Type
3.3.4 Unicode and the char Type
3.3.5 The boolean Type
3.4 Variables and Constants
3.4.1 Declaring Variables
3.4.2 Initializing Variables
3.4.3 Constants
3.4.4 Enumerated Types
3.5 Operators
3.5.1 Arithmetic Operators
3.5.2 Mathematical Functions and Constants
3.5.3 Conversions between Numeric Types
3.5.4 Casts
3.5.5 Combining Assignment with Operators
3.5.6 Increment and Decrement Operators
3.5.7 Relational and boolean Operators
3.5.8 Bitwise Operators
3.5.9 Parentheses and Operator Hierarchy
3.6 Strings
3.6.1 Substrings
3.6.2 Concatenation
3.6.3 Strings Are Immutable
3.6.4 Testing Strings for Equality
3.6.5 Empty and Null Strings
3.6.6 Code Points and Code Units
3.6.7 The String API
3.6.8 Reading the Online API Documentation
3.6.9 Building Strings
3.7 Input and Output
3.7.1 Reading Input
3.7.2 Formatting Output
3.7.3 File Input and Output
3.8 Control Flow
3.8.1 Block Scope
3.8.2 Conditional Statements
3.8.3 Loops
3.8.4 Determinate Loops
3.8.5 Multiple Selections—The switch Statement
3.8.6 Statements That Break Control Flow
3.9 Big Numbers
3.10 Arrays
3.10.1 Declaring Arrays
3.10.2 Accessing Array Elements
3.10.3 The “for each” Loop
3.10.4 Array Copying
3.10.5 Command-Line Parameters
3.10.6 Array Sorting
3.10.7 Multidimensional Arrays
3.10.8 Ragged Arrays
Chapter 4: Objects and Classes
4.1 Introduction to Object-Oriented Programming
4.1.1 Classes
4.1.2 Objects
4.1.3 Identifying Classes
4.1.4 Relationships between Classes
4.2 Using Predefined Classes
4.2.1 Objects and Object Variables
4.2.2 The LocalDate Class of the Java Library
4.2.3 Mutator and Accessor Methods
4.3 Defining Your Own Classes
4.3.1 An Employee Class
4.3.2 Use of Multiple Source Files
4.3.3 Dissecting the Employee Class
4.3.4 First Steps with Constructors
4.3.5 Declaring Local Variables with var
4.3.6 Working with null References
4.3.7 Implicit and Explicit Parameters
4.3.8 Benefits of Encapsulation
4.3.9 Class-Based Access Privileges
4.3.10 Private Methods
4.3.11 Final Instance Fields
4.4 Static Fields and Methods
4.4.1 Static Fields
4.4.2 Static Constants
4.4.3 Static Methods
4.4.4 Factory Methods
4.4.5 The main Method
4.5 Method Parameters
4.6 Object Construction
4.6.1 Overloading
4.6.2 Default Field Initialization
4.6.3 The Constructor with No Arguments
4.6.4 Explicit Field Initialization
4.6.5 Parameter Names
4.6.6 Calling Another Constructor
4.6.7 Initialization Blocks
4.6.8 Object Destruction and the finalize Method
4.7 Packages
4.7.1 Package Names
4.7.2 Class Importation
4.7.3 Static Imports
4.7.4 Addition of a Class into a Package
4.7.5 Package Access
4.7.6 The Class Path
4.7.7 Setting the Class Path
4.8 JAR Files
4.8.1 Creating JAR files
4.8.2 The Manifest
4.8.3 Executable JAR Files
4.8.4 Multi-Release JAR Files
4.8.5 A Note about Command-Line Options
4.9 Documentation Comments
4.9.1 Comment Insertion
4.9.2 Class Comments
4.9.3 Method Comments
4.9.4 Field Comments
4.9.5 General Comments
4.9.6 Package Comments
4.9.7 Comment Extraction
4.10 Class Design Hints
Chapter 5: Inheritance
5.1 Classes, Superclasses, and Subclasses
5.1.1 Defining Subclasses
5.1.2 Overriding Methods
5.1.3 Subclass Constructors
5.1.4 Inheritance Hierarchies
5.1.5 Polymorphism
5.1.6 Understanding Method Calls
5.1.7 Preventing Inheritance: Final Classes and Methods
5.1.8 Casting
5.1.9 Abstract Classes
5.1.10 Protected Access
5.2 Object: The Cosmic Superclass
5.2.1 Variables of Type Object
5.2.2 The equals Method
5.2.3 Equality Testing and Inheritance
5.2.4 The hashCode Method
5.2.5 The toString Method
5.3 Generic Array Lists
5.3.1 Declaring Array Lists
5.3.2 Accessing Array List Elements
5.3.3 Compatibility between Typed and Raw Array Lists
5.4 Object Wrappers and Autoboxing
5.5 Methods with a Variable Number of Parameters
5.6 Enumeration Classes
5.7 Reflection
5.7.1 The Class Class
5.7.2 A Primer on Declaring Exceptions
5.7.3 Resources
5.7.4 Using Reflection to Analyze the Capabilities of Classes
5.7.5 Using Reflection to Analyze Objects at Runtime
5.7.6 Using Reflection to Write Generic Array Code
5.7.7 Invoking Arbitrary Methods and Constructors
5.8 Design Hints for Inheritance
Chapter 6: Interfaces, Lambda Expressions, and Inner Classes
6.1 Interfaces
6.1.1 The Interface Concept
6.1.2 Properties of Interfaces
6.1.3 Interfaces and Abstract Classes
6.1.4 Static and Private Methods
6.1.5 Default Methods
6.1.6 Resolving Default Method Conflicts
6.1.7 Interfaces and Callbacks
6.1.8 The Comparator Interface
6.1.9 Object Cloning
6.2 Lambda Expressions
6.2.1 Why Lambdas?
6.2.2 The Syntax of Lambda Expressions
6.2.3 Functional Interfaces
6.2.4 Method References
6.2.5 Constructor References
6.2.6 Variable Scope
6.2.7 Processing Lambda Expressions
6.2.8 More about Comparators
6.3 Inner Classes
6.3.1 Use of an Inner Class to Access Object State
6.3.2 Special Syntax Rules for Inner Classes
6.3.3 Are Inner Classes Useful? Actually Necessary? Secure?
6.3.4 Local Inner Classes
6.3.5 Accessing Variables from Outer Methods
6.3.6 Anonymous Inner Classes
6.3.7 Static Inner Classes
6.4 Service Loaders
6.5 Proxies
6.5.1 When to Use Proxies
6.5.2 Creating Proxy Objects
6.5.3 Properties of Proxy Classes
Chapter 7: Exceptions, Assertions, and Logging
7.1 Dealing with Errors
7.1.1 The Classification of Exceptions
7.1.2 Declaring Checked Exceptions
7.1.3 How to Throw an Exception
7.1.4 Creating Exception Classes
7.2 Catching Exceptions
7.2.1 Catching an Exception
7.2.2 Catching Multiple Exceptions
7.2.3 Rethrowing and Chaining Exceptions
7.2.4 The finally Clause
7.2.5 The try-with-Resources Statement
7.2.6 Analyzing Stack Trace Elements
7.3 Tips for Using Exceptions
7.4 Using Assertions
7.4.1 The Assertion Concept
7.4.2 Assertion Enabling and Disabling
7.4.3 Using Assertions for Parameter Checking
7.4.4 Using Assertions for Documenting Assumptions
7.5 Logging
7.5.1 Basic Logging
7.5.2 Advanced Logging
7.5.3 Changing the Log Manager Configuration
7.5.4 Localization
7.5.5 Handlers
7.5.6 Filters
7.5.7 Formatters
7.5.8 A Logging Recipe
7.6 Debugging Tips
Chapter 8: Generic Programming
8.1 Why Generic Programming?
8.1.1 The Advantage of Type Parameters
8.1.2 Who Wants to Be a Generic Programmer?
8.2 Defining a Simple Generic Class
8.3 Generic Methods
8.4 Bounds for Type Variables
8.5 Generic Code and the Virtual Machine
8.5.1 Type Erasure
8.5.2 Translating Generic Expressions
8.5.3 Translating Generic Methods
8.5.4 Calling Legacy Code
8.6 Restrictions and Limitations
8.6.1 Type Parameters Cannot Be Instantiated with Primitive
Types
8.6.2 Runtime Type Inquiry Only Works with Raw Types
8.6.3 You Cannot Create Arrays of Parameterized Types
8.6.4 Varargs Warnings
8.6.5 You Cannot Instantiate Type Variables
8.6.6 You Cannot Construct a Generic Array
8.6.7 Type Variables Are Not Valid in Static Contexts of Generic
Classes
8.6.8 You Cannot Throw or Catch Instances of a Generic Class
8.6.9 You Can Defeat Checked Exception Checking
8.6.10 Beware of Clashes after Erasure
8.7 Inheritance Rules for Generic Types
8.8 Wildcard Types
8.8.1 The Wildcard Concept
8.8.2 Supertype Bounds for Wildcards
8.8.3 Unbounded Wildcards
8.8.4 Wildcard Capture
8.9 Reflection and Generics
8.9.1 The Generic Class Class
8.9.2 Using Class<T> Parameters for Type Matching
8.9.3 Generic Type Information in the Virtual Machine
8.9.4 Type Literals
Chapter 9: Collections
9.1 The Java Collections Framework
9.1.1 Separating Collection Interfaces and Implementation
9.1.2 The Collection Interface
9.1.3 Iterators
9.1.4 Generic Utility Methods
9.2 Interfaces in the Collections Framework
9.3 Concrete Collections
9.3.1 Linked Lists
9.3.2 Array Lists
9.3.3 Hash Sets
9.3.4 Tree Sets
9.3.5 Queues and Deques
9.3.6 Priority Queues
9.4 Maps
9.4.1 Basic Map Operations
9.4.2 Updating Map Entries
9.4.3 Map Views
9.4.4 Weak Hash Maps
9.4.5 Linked Hash Sets and Maps
9.4.6 Enumeration Sets and Maps
9.4.7 Identity Hash Maps
9.5 Views and Wrappers
9.5.1 Small Collections
9.5.2 Subranges
9.5.3 Unmodifiable Views
9.5.4 Synchronized Views
9.5.5 Checked Views
9.5.6 A Note on Optional Operations
9.6 Algorithms
9.6.1 Why Generic Algorithms?
9.6.2 Sorting and Shuffling
9.6.3 Binary Search
9.6.4 Simple Algorithms
9.6.5 Bulk Operations
9.6.6 Converting between Collections and Arrays
9.6.7 Writing Your Own Algorithms
9.7 Legacy Collections
9.7.1 The Hashtable Class
9.7.2 Enumerations
9.7.3 Property Maps
9.7.4 Stacks
9.7.5 Bit Sets
Chapter 10: Graphical User Interface Programming
10.1 A History of Java User Interface Toolkits
10.2 Displaying Frames
10.2.1 Creating a Frame
10.2.2 Frame Properties
10.3 Displaying Information in a Component
10.3.1 Working with 2D Shapes
10.3.2 Using Color
10.3.3 Using Fonts
10.3.4 Displaying Images
10.4 Event Handling
10.4.1 Basic Event Handling Concepts
10.4.2 Example: Handling a Button Click
10.4.3 Specifying Listeners Concisely
10.4.4 Adapter Classes
10.4.5 Actions
10.4.6 Mouse Events
10.4.7 The AWT Event Hierarchy
10.5 The Preferences API
Chapter 11: User Interface Components with Swing
11.1 Swing and the Model-View-Controller Design Pattern
11.2 Introduction to Layout Management
11.2.1 Layout Managers
11.2.2 Border Layout
11.2.3 Grid Layout
11.3 Text Input
11.3.1 Text Fields
11.3.2 Labels and Labeling Components
11.3.3 Password Fields
11.3.4 Text Areas
11.3.5 Scroll Panes
11.4 Choice Components
11.4.1 Checkboxes
11.4.2 Radio Buttons
11.4.3 Borders
11.4.4 Combo Boxes
11.4.5 Sliders
11.5 Menus
11.5.1 Menu Building
11.5.2 Icons in Menu Items
11.5.3 Checkbox and Radio Button Menu Items
11.5.4 Pop-Up Menus
11.5.5 Keyboard Mnemonics and Accelerators
11.5.6 Enabling and Disabling Menu Items
11.5.7 Toolbars
11.5.8 Tooltips
11.6 Sophisticated Layout Management
11.6.1 The Grid Bag Layout
11.6.1.1 The gridx, gridy, gridwidth, and
gridheight Parameters
11.6.1.2 Weight Fields
11.6.1.3 The fill and anchor Parameters
11.6.1.4 Padding
11.6.1.5 Alternative Method to Specify the gridx, gridy,
gridwidth, and gridheight Parameters
11.6.1.6 A Grid Bag Layout Recipe
11.6.1.7 A Helper Class to Tame the Grid Bag Constraints
11.6.2 Custom Layout Managers
11.7 Dialog Boxes
11.7.1 Option Dialogs
11.7.2 Creating Dialogs
11.7.3 Data Exchange
11.7.4 File Dialogs
Chapter 12: Concurrency
12.1 What Are Threads?
12.2 Thread States
12.2.1 New Threads
12.2.2 Runnable Threads
12.2.3 Blocked and Waiting Threads
12.2.4 Terminated Threads
12.3 Thread Properties
12.3.1 Interrupting Threads
12.3.2 Daemon Threads
12.3.3 Thread Names
12.3.4 Handlers for Uncaught Exceptions
12.3.5 Thread Priorities
12.4 Synchronization
12.4.1 An Example of a Race Condition
12.4.2 The Race Condition Explained
12.4.3 Lock Objects
12.4.4 Condition Objects
12.4.5 The synchronized Keyword
12.4.6 Synchronized Blocks
12.4.7 The Monitor Concept
12.4.8 Volatile Fields
12.4.9 Final Variables
12.4.10 Atomics
12.4.11 Deadlocks
12.4.12 Thread-Local Variables
12.4.13 Why the stop and suspend Methods Are Deprecated
12.5 Thread-Safe Collections
12.5.1 Blocking Queues
12.5.2 Efficient Maps, Sets, and Queues
12.5.3 Atomic Update of Map Entries
12.5.4 Bulk Operations on Concurrent Hash Maps
12.5.5 Concurrent Set Views
12.5.6 Copy on Write Arrays
12.5.7 Parallel Array Algorithms
12.5.8 Older Thread-Safe Collections
12.6 Tasks and Thread Pools
12.6.1 Callables and Futures
12.6.2 Executors
12.6.3 Controlling Groups of Tasks
12.6.4 The Fork-Join Framework
12.7 Asynchronous Computations
12.7.1 Completable Futures
12.7.2 Composing Completable Futures
12.7.3 Long-Running Tasks in User Interface Callbacks
12.8 Processes
12.8.1 Building a Process
12.8.2 Running a Process
12.8.3 Process Handles
Appendix
Index