本书作者拥有多年教学经验，对C、C++以及Java语言都有独到、深入的见解，书中以通俗易懂且小而直接的示例阐释了一个个晦涩抽象的概念，是一本当之无愧的经典之作。本评注版讲解了Java设计、语法和库的各个方面，包括Java的运算符、控制逻辑、构造、回收、重用、接口、内部类、存储、异常、字符串、类型、泛型、数组、容器、I/O、注释、并发等内容。
对于国外技术图书，选择翻译版还是影印版，常常让人陷入两难的境地。本评注版力邀国内资深专家执笔，在英文原著基础上增加中文点评与注释，旨在融合二者之长，既保留经典的原创文字与味道，又以先行者的学研心得与实践感悟，对读者阅读与学习加以点拨、指明捷径。
经过评注的版本，更值得反复阅读与体会。希望这本书能够帮助您跨越Java的重重险阻，领略高处才有的壮美风光，做一个成功而快乐的Java程序员。

页　　数：756
第1部分  基本语法
Operators（新增批注30条） 1
Simpler print statements 1
Using Java operators 2
Precedence 2
Assignment 3
Mathematical operators 4
Unary minus and plus operators 6
Auto increment and decrement 6
Relational operators 7
Testing object equivalence 7
Logical operators 9
Literals 10
Exponential notation 11
Bitwise operators 12
Shift operators 13
Ternary if-else operator 16
String operator + and += 17
Common pitfalls when using
operators 18
Casting operators 18
Truncation and rounding 19
Promotion 20
Java has no “sizeof ” 20
Summary 20
Controlling Execution
（新增批注21条） 21
true and false 21
if-else 21
Iteration 22
do-while 23
for 23
The comma operator 24
Foreach syntax 25
return 27
break and continue 27
The infamous “goto” 29
switch 32
Summary 34
第2部分  面向对象
Initialization & Cleanup
（新增批注55条） 35
Guaranteed initialization with
the constructor 35
Method overloading 37
Distinguishing overloaded
methods 39
Overloading with primitives 39
Overloading on return values 42
Default constructors 43
The this keyword 44
Calling constructors from
constructors 46
The meaning of static 47
Cleanup: finalization and
garbage collection 47
What is finalize() for? 48
You must perform cleanup 49
The termination condition 50
How a garbage collector works 51
Member initialization 54
Specifying initialization 55
Constructor initialization 56
Order of initialization 56
static data initialization 57
Explicit static initialization 59
Non-static instance initialization 61
Array initialization 62
Variable argument lists 65
Enumerated types 70
Summary 72
Access Control
（新增批注21条） 73
package: the library unit 74
Code organization 75
Creating unique package names 76
A custom tool library 79
Java access specifiers 80
Package access 80
public: interface access 81
private: you can’t touch that! 82
protected: inheritance access 83
Interface and implementation 85
Class access 86
Summary 87
Reusing Classes
（新增批注35条） 89
Composition syntax 89
Inheritance syntax 92
Initializing the base class 94
Delegation 96
Combining composition and
inheritance 97
Guaranteeing proper cleanup 99
Name hiding 101
Choosing composition vs.
inheritance 103
protected 104
Upcasting 105
Why “upcasting”? 106
Composition vs. inheritance
revisited 106
The final keyword 107
final data 107
final methods 110
final classes 112
final caution 113
Initialization and class
loading 113
Initialization with inheritance 114
Summary 115
Interfaces
（新增批注16条） 117
Abstract classes and methods 117
Interfaces 120
“Multiple inheritance” in Java 123
Extending an interface with
inheritance 125
Name collisions when combining
interfaces 127
Fields in interfaces 127
Initializing fields in interfaces 128
Interfaces and factories 129
Summary 130
Inner Classes
（新增批注32条） 131
Creating inner classes 131
The link to the outer class 133
Using .this and .new 134
Inner classes and upcasting 135
Anonymous inner classes 137
Factory Method revisited 140
Nested classes 142
Classes inside interfaces 143
Reaching outward from a
multiply nested class 145
Why inner classes? 145
Closures & callbacks 148
Inheriting from inner classes 150
Can inner classes be
overridden? 150
Local inner classes 152
Inner-class identifiers 153
Summary 154
Error Handling with Excep- tions（新增批注52条） 155
Basic exceptions 155
Exception arguments 156
Catching an exception 157
The try block 157
Exception handlers . 157
Creating your own
exceptions 159
Exceptions and logging 161
The exception specification 164
Catching any exception 164
The stack trace 166
Rethrowing an exception 167
Exception chaining 169
Standard Java exceptions 172
Special case: RuntimeException 172
Performing cleanup with
finally 174
What’s finally for? 175
Using finally during return 177
Pitfall: the lost exception 178
Exception restrictions 180
Constructors 182
Exception matching 187
Alternative approaches 188
Passing exceptions to the console 189
Summary 189
第3部分  数据存储
Strings（新增批注53条） 191
Immutable Strings 191
Overloading ‘+’ vs.
StringBuilder 192
Unintended recursion 195
Operations on Strings 196
Formatting output 199
printf() 199
System.out.format() 199
The Formatter class 200
Format specifiers 200
Formatter conversions 202
String.format() 204
Regular expressions 205
Basics 206
Creating regular expressions 208
Quantifiers 210
Pattern and Matcher 211
split() 218
Replace operations 218
reset() 220
Regular expressions and Java I/O 221
Scanning input 222
Scanner delimiters 224
Scanning with regular
expressions 225
StringTokenizer 225
Summary 226
Arrays（新增批注36条） 227
Why arrays are special 227
Arrays are first-class objects 228
Returning an array 231
Multidimensional arrays 232
Arrays and generics 235
Creating test data 237
Arrays.fill() 238
Data Generators 239
Arrays utilities 243
Copying an array 243
Comparing arrays 244
Array element comparisons 245
Sorting an array 248
Searching a sorted array 249
Summary 251
Holding Your Objects
（新增批注35条） 253
Generics and type-safe
containers 254
Basic concepts 256
Adding groups of elements 258
Printing containers 259
List 261
Iterator 263

ListIterator 266
LinkedList 267
Stack 268
Set 270
Map 273
Queue 276
PriorityQueue 277
Collection vs. Iterator 279
Foreach and iterators 281
The Adapter Method idiom 283
Summary 286
Containers in Depth
（新增批注102条） 289
Full container taxonomy 289
Filling containers 290
A Generator solution 291
Map generators 292
Collection functionality 294
Optional operations 297
Unsupported operations 298
List functionality 300
Sets and storage order 302
SortedSet 306
Queues 307
Priority queues 308
Deques 309
Understanding Maps 310
Performance 311
SortedMap 314
LinkedHashMap 315
Hashing and hash codes 316
Understanding hashCode() 319
Hashing for speed 321
Overriding hashCode() 324
Choosing an implementation 329
A performance test framework 330
Choosing between Lists 333
Microbenchmarking dangers 338
Choosing between Sets 339
Choosing between Maps 341
Utilities 344
Sorting and searching Lists 347
Making a Collection or Map
unmodifiable 349
Synchronizing a Collection or
Map 350
Holding references 351
The WeakHashMap 353
Java 1.0/1.1 containers 355
Vector & Enumeration 355
Hashtable 356
Stack 356
BitSet 357
Summary 359
第4部分  核心功能
I/O（新增批注89条） 361
The File class 361
A directory lister 361
Directory utilities 364
Checking for and creating
directories 369
Input and output 370
Types of InputStream 371
Types of OutputStream 372
Adding attributes and useful
interfaces 373
Reading from an InputStream
with FilterInputStream 374
Writing to an OutputStream
with FilterOutputStream 375
Readers & Writers 376
Sources and sinks of data 377
Modifying stream behavior 377
Unchanged classes 378
Off by itself:
RandomAccessFile 379
Typical uses of I/O streams 379
Buffered input file 379
Input from memory 380
Formatted memory input 381
Basic file output 382
Storing and recovering data 383
Reading and writing
random-access files 385
Piped streams 386
File reading &
writing utilities 386
Reading binary files 389
Standard I/O 389
Reading from standard input 389
Changing System.out to a
PrintWriter 390
Redirecting standard I/O 391
Process control 391
New I/O 393
Converting data 396
Fetching primitives 398
View buffers 399
Data manipulation with buffers 403
Buffer details 404
Memory-mapped files 406
File locking 409
Compression 411
Simple compression with GZIP 412
Multifile storage with Zip 413
Java ARchives (JARs) 415
Object serialization 416
Finding the class 419
Controlling serialization 420
Using persistence 427
XML 432
Summary 434
Concurrency
（新增批注117条） 435
Basic threading 435
Defining tasks 435
The Thread class 436
Using Executors 438
Producing return values from
tasks 440
Sleeping 442
Priority 443
Yielding 444
Daemon threads 445
Coding variations 446
Joining a thread 450
Catching exceptions 451
Sharing resources 454
Resolving shared resource
contention 454
Atomicity and volatility 457
Atomic classes 460
Critical sections 462
Synchronizing on other objects 462
Thread local storage 463
Terminating tasks 464
The ornamental garden 465
Terminating when blocked 467
Interruption 469
Cooperation between tasks 475
wait() and notifyAll() 475
notify() vs. notifyAll() 479
Producers and consumers 482
Producer-consumers and queues 486
Using pipes for I/O between tasks 491
Deadlock 492
New library components 497
CountDownLatch 497
CyclicBarrier 499
DelayQueue 501
PriorityBlockingQueue 503
The greenhouse controller with
ScheduledExecutor 505
Semaphore 508
Exchanger 511
Simulation 513
Bank teller simulation 513
The restaurant simulation 517
Distributing work 521
Performance tuning 526
Comparing mutex technologies 526
Lock-free containers 532
ReadWriteLocks 533
Active objects 535
Summary 537
第5部分  高级特性
Type Information
（新增批注59条） 539
The need for RTTI 539
The Class object 541
Class literals 545
Generic class references 547
New cast syntax 549
Checking before a cast 550
Using class literals 555
A dynamic instanceof 557
Counting recursively 558
Registered factories 559
instanceof vs. Class
equivalence 562
Reflection: runtime class
information 563
A class method extractor 564
Dynamic proxies 566
Null Objects 570
Mock Objects & Stubs 575
Interfaces and type
information 576
Summary 580
Generics
（新增批注126条） 583
Comparison with C++ 584
Simple generics 584
A tuple library 586
A stack class 588
RandomList 589
Generic interfaces 590
Generic methods 593
Leveraging type argument
inference 594
Varargs and generic methods 596
A generic method to use with
Generators 596
A general-purpose Generator 597
Simplifying tuple use 598
A Set utility 600
Anonymous inner classes 603
Building complex models 604
The mystery of erasure 606
The C++ approach 607
Migration compatibility 609
The problem with erasure 611
The action at the boundaries 612
Compensating for erasure 615
Creating instances of types 616
Arrays of generics 618
Bounds 622
Wildcards 625
How smart is the compiler? 628
Contravariance 629
Unbounded wildcards 632
Capture conversion 636
Issues 637
No primitives as type parameters 637
Implementing parameterized
interfaces 639
Casting and warnings 640
Overloading 641
Base class hijacks an interface 642
Self-bounded types 642
Curiously-recurring generics 643
Self-bounding 644
Argument covariance 646
Dynamic type safety 649
Exceptions 650
Mixins 651
Mixins in C++ 651
Mixing with interfaces 653
Using the Decorator pattern 654
Mixins with dynamic proxies 655
Latent typing 657
Compensating for the lack of
latent typing 660
Reflection 661
Applying a method to a sequence 662
When you don’t happen
to have the right interface 664
Simulating latent typing
with adapters 665
Using function objects as
strategies 668
Summary: Is casting really
so bad? 672
Enumerated Types
（新增批注55条） 675
Basic enum features 675
Using static imports with enums 676
Adding methods to an enum 677
Overriding enum methods 678
enums in switch statements 678
The mystery of values() 679
Implements, not inherits 681
Random selection 682
Using interfaces for
organization 683
Using EnumSet instead of
flags 686
Using EnumMap 688
Constant-specific methods 689
Chain of Responsibility with
enums 692
State machines with enums 695
Multiple dispatching 700
Dispatching with enums 702
Using constant-specific methods 704
Dispatching with EnumMaps 705
Using a 2-D array 706
Summary 707
Annotations
（新增批注51条） 709
Basic syntax 710
Defining annotations 710
Meta-annotations 712
Writing annotation processors 712
Annotation elements 713
Default value constraints 713
Generating external files 714
Annotations don’t
support inheritance 717
Implementing the processor 717
Using apt to process
annotations 719
Using the Visitor pattern with
apt 723
Annotation-based unit testing 726
Using @Unit with generics 733
No “suites” necessary 735
Implementing @Unit 735
Removing test code 741
Sum

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