The Java Language Specification, Third Edition

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4.5.1 Type Arguments and Wildcards TYPES, VALUES, AND VARIABLES 54 throws type. In the absence of such interdependency, generic methods are considered bad style, and wildcards are preferred. Unlike ordinary type variables declared in a method signature, no type inference is required when using a wildcard. Consequently, it is permissible to declare lower bounds on a wildcard, using the syntax: ? super B , where B is a lower bound. DISCUSSION Example: Lower bounds on wildcards. Reference(T referent, ReferenceQueue
TYPES, VALUES, AND VARIABLES Members and Constructors of Parameterized Types 4.5.2 DISCUSSION Historically, wildcards are a direct descendant of the work by Atsushi Igarashi and Mirko Viroli. This work itself builds upon earlier work by Kresten Thorup and Mads Torgersen ("Unifying Genericity", ECOOP 99), as well as a long tradition of work on declaration based variance that goes back to Pierre America’s work on POOL (OOPSLA 89) 4.5.1.1 Type Argument Containment and Equivalence A type argument TA1 is said to contain another type argument TA2, written TA2
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The Java Language Specification Th
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The Java Language Specification Th
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Copyright © 1996-2005 Sun Microsys
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“When I use a word,” Humpty Dum
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Preface XXIII Preface to the Second
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5.4 String Conversion 101 5.5 Casti
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8.2.1.3 Inheritance with private 19
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10 Arrays 287 10.1 Array Types 288
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14 Blocks and Statements 359 14.1 N
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15.12.4.4 Locate Method to Invoke 4
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17.4.2 Actions 558 17.4.3 Programs
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Preface THE Java programming langua
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PREFACE was invaluable to us during
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Preface to the Second Edition ... t
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PREFACE TO THE SECOND EDITION Trici
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Preface to the Third Edition This e
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PREFACE TO THE THIRD EDITION Joe Da
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1.0 CHAPTER1 Introduction If I have
Page 37 and 38: INTRODUCTION Introduction 1 declare
Page 39 and 40: INTRODUCTION Example Programs 1.1 B
Page 41 and 42: INTRODUCTION References 1.4 Goldber
Page 43 and 44: CHAPTER2 Grammars Grammar, which kn
Page 45 and 46: GRAMMARS Grammar Notation 2.4 actua
Page 47 and 48: CHAPTER3 Lexical Structure Lexicogr
Page 49 and 50: LEXICAL STRUCTURE Unicode Escapes 3
Page 51 and 52: LEXICAL STRUCTURE Input Elements an
Page 53 and 54: LEXICAL STRUCTURE Identifiers 3.8 E
Page 55 and 56: LEXICAL STRUCTURE Literals 3.10 3.9
Page 57 and 58: LEXICAL STRUCTURE Integer Literals
Page 59 and 60: LEXICAL STRUCTURE Floating-Point Li
Page 61 and 62: LEXICAL STRUCTURE Character Literal
Page 63 and 64: LEXICAL STRUCTURE String Literals 3
Page 65 and 66: LEXICAL STRUCTURE Operators 3.12 3.
Page 67 and 68: CHAPTER4 Types, Values, and Variabl
Page 69 and 70: TYPES, VALUES, AND VARIABLES Integr
Page 71 and 72: TYPES, VALUES, AND VARIABLES Floati
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Page 79 and 80: TYPES, VALUES, AND VARIABLES Object
Page 81 and 82: TYPES, VALUES, AND VARIABLES The Cl
Page 83 and 84: TYPES, VALUES, AND VARIABLES Type V
Page 85 and 86: TYPES, VALUES, AND VARIABLES Parame
Page 87: TYPES, VALUES, AND VARIABLES Type A
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Page 97 and 98: TYPES, VALUES, AND VARIABLES Subtyp
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Page 101 and 102: TYPES, VALUES, AND VARIABLES Variab
Page 103 and 104: TYPES, VALUES, AND VARIABLES Kinds
Page 105 and 106: TYPES, VALUES, AND VARIABLES Initia
Page 107 and 108: TYPES, VALUES, AND VARIABLES Types,
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Page 111 and 112: CHAPTER5 Conversions and Promotions
Page 113 and 114: CONVERSIONS AND PROMOTIONS Conversi
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Page 117 and 118: CONVERSIONS AND PROMOTIONS Narrowin
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Page 121 and 122: CONVERSIONS AND PROMOTIONS Boxing C
Page 123 and 124: CONVERSIONS AND PROMOTIONS Capture
Page 125 and 126: CONVERSIONS AND PROMOTIONS Capture
Page 127 and 128: CONVERSIONS AND PROMOTIONS Assignme
Page 133 and 134: CONVERSIONS AND PROMOTIONS Method I
Page 135 and 136: CONVERSIONS AND PROMOTIONS Casting
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CONVERSIONS AND PROMOTIONS Casting
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CONVERSIONS AND PROMOTIONS Casting
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CONVERSIONS AND PROMOTIONS Unary Nu
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CONVERSIONS AND PROMOTIONS Binary N
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CHAPTER6 Names The Tao that can be
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NAMES Names and Identifiers 6.2 ❖
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NAMES Scope of a Declaration 6.3 in
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NAMES Shadowing Declarations 6.3.1
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NAMES Shadowing Declarations 6.3.1
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NAMES The Members of a Class Type 6
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NAMES The Members of an Array Type
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NAMES Syntactic Classification of a
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NAMES Reclassification of Contextua
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NAMES Meaning of Package Names 6.5.
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NAMES Meaning of Type Names 6.5.5 a
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NAMES Meaning of Expression Names 6
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NAMES Meaning of Method Names 6.5.7
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NAMES Details on protected Access 6
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NAMES Example: Access to public and
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NAMES Example: protected Fields, Me
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NAMES Fully Qualified Names and Can
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NAMES Class and Interface Type Name
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NAMES Method Names 6.8.4 DISCUSSION
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NAMES Local Variable and Parameter
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CHAPTER7 Packages Good things come
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PACKAGES Storing Packages in a File
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PACKAGES Compilation Units 7.3 7.2.
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PACKAGES Unnamed Packages 7.4.2 on
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PACKAGES Single-Type-Import Declara
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PACKAGES Type-Import-on-Demand Decl
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PACKAGES A Strange Example 7.5.6 7.
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PACKAGES Top Level Type Declaration
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PACKAGES Unique Package Names 7.7 t
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PACKAGES Unique Package Names 7.7 o
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CHAPTER8 Classes Origins: A Short E
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CLASSES Class Modifiers 8.1.1 8.1 C
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CLASSES Class Modifiers 8.1.1 class
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CLASSES Generic Classes and Type Pa
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CLASSES Inner Classes and Enclosing
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CLASSES Inner Classes and Enclosing
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CLASSES Superclasses and Subclasses
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CLASSES Superinterfaces 8.1.5 resul
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CLASSES Class Body and Member Decla
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CLASSES Class Members 8.2 Construct
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CLASSES Examples of Inheritance 8.2
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CLASSES Examples of Inheritance 8.2
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CLASSES Field Modifiers 8.3.1 If a
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CLASSES Field Modifiers 8.3.1 of ac
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CLASSES Initialization of Fields 8.
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CLASSES Initialization of Fields 8.
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CLASSES Examples of Field Declarati
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CLASSES Examples of Field Declarati
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CLASSES Method Declarations 8.4 fie
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CLASSES Formal Parameters 8.4.1 of
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CLASSES Method Signature 8.4.2 Two
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CLASSES Method Modifiers 8.4.3 an i
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CLASSES Method Modifiers 8.4.3 resp
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CLASSES Method Modifiers 8.4.3 Thes
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CLASSES Method Throws 8.4.6 • If
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CLASSES Method Body 8.4.7 Object do
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CLASSES Inheritance, Overriding, an
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CLASSES Inheritance, Overriding, an
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CLASSES Overloading 8.4.9 DISCUSSIO
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CLASSES Examples of Method Declarat
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CLASSES Member Type Declarations 8.
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CLASSES Static Initializers 8.7 aga
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CLASSES Constructor Modifiers 8.8.3
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CLASSES Constructor Body 8.8.7 clas
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CLASSES Constructor Body 8.8.7 •
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CLASSES Default Constructor 8.8.9 8
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CLASSES Enums 8.9 8.9 Enums An enum
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CLASSES Enums 8.9 DISCUSSION This i
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CLASSES Enums 8.9 Note that the exa
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CLASSES Enums 8.9 DIME: 10¢ SILVER
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CLASSES Enums 8.9 public static voi
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CHAPTER9 Interfaces My apple trees
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INTERFACES Superinterfaces and Subi
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INTERFACES Interface Members 9.2 9.
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INTERFACES Examples of Field Declar
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INTERFACES Inheritance and Overridi
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INTERFACES Examples of Abstract Met
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INTERFACES Annotation Types 9.6 DIS
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INTERFACES Predefined Annotation Ty
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INTERFACES Predefined Annotation Ty
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INTERFACES Annotations 9.7 • The
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INTERFACES Annotations 9.7 TypeName
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INTERFACES Annotations 9.7 The seco
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CHAPTER10 Arrays Even Solomon in al
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ARRAYS Array Access 10.4 Here are s
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ARRAYS Array Initializers 10.6 Arra
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ARRAYS Class Objects for Arrays 10.
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ARRAYS Array Store Exception 10.10
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CHAPTER11 Exceptions If anything ca
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EXCEPTIONS Exception Analysis of Ex
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EXCEPTIONS Why Runtime Exceptions a
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EXCEPTIONS Handling Asynchronous Ex
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EXCEPTIONS An Example of Exceptions
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EXCEPTIONS Virtual Machine Errors 1
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CHAPTER12 Execution We must all han
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EXECUTION Initialize Test: Execute
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EXECUTION The Loading Process 12.2.
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EXECUTION Resolution of Symbolic Re
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EXECUTION When Initialization Occur
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EXECUTION Detailed Initialization P
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EXECUTION Initialization: Implicati
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EXECUTION Creation of New Class Ins
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EXECUTION Finalization of Class Ins
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EXECUTION Implementing Finalization
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EXECUTION Finalizer Invocations are
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EXECUTION Program Exit 12.8 ers. A
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CHAPTER13 Binary Compatibility Desp
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BINARY COMPATIBILITY The Form of a
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BINARY COMPATIBILITY The Form of a
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BINARY COMPATIBILITY What Binary Co
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BINARY COMPATIBILITY Superclasses a
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BINARY COMPATIBILITY Class Body and
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BINARY COMPATIBILITY Field Declarat
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BINARY COMPATIBILITY final Fields a
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BINARY COMPATIBILITY static Fields
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BINARY COMPATIBILITY Method and Con
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BINARY COMPATIBILITY final Methods
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BINARY COMPATIBILITY Method and Con
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BINARY COMPATIBILITY Interface Form
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CHAPTER14 Blocks and Statements He
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BLOCKS AND STATEMENTS Local Class D
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BLOCKS AND STATEMENTS Local Variabl
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BLOCKS AND STATEMENTS Scope of Loca
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BLOCKS AND STATEMENTS Execution of
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BLOCKS AND STATEMENTS Statements 14
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BLOCKS AND STATEMENTS Expression St
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BLOCKS AND STATEMENTS The assert St
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BLOCKS AND STATEMENTS The assert St
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BLOCKS AND STATEMENTS The switch St
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BLOCKS AND STATEMENTS The switch St
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BLOCKS AND STATEMENTS Abrupt Comple
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BLOCKS AND STATEMENTS Example of do
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BLOCKS AND STATEMENTS The basic for
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BLOCKS AND STATEMENTS The enhanced
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BLOCKS AND STATEMENTS The break Sta
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BLOCKS AND STATEMENTS The continue
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BLOCKS AND STATEMENTS The throw Sta
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BLOCKS AND STATEMENTS The synchroni
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BLOCKS AND STATEMENTS The try state
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BLOCKS AND STATEMENTS Unreachable S
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CHAPTER15 Expressions When you can
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EXPRESSIONS Expressions and Run-Tim
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EXPRESSIONS Normal and Abrupt Compl
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EXPRESSIONS Evaluate Left-Hand Oper
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EXPRESSIONS Evaluation Respects Par
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EXPRESSIONS Evaluation Order for Ot
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EXPRESSIONS this 15.8.3 ing-point l
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EXPRESSIONS Class Instance Creation
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EXPRESSIONS Determining Enclosing I
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EXPRESSIONS Choosing the Constructo
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EXPRESSIONS Anonymous Class Declara
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EXPRESSIONS Array Creation Expressi
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EXPRESSIONS Example: Array Creation
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EXPRESSIONS Field Access Using a Pr
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EXPRESSIONS Field Access Using a Pr
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EXPRESSIONS Accessing Superclass Me
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EXPRESSIONS Compile-Time Step 1: De
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EXPRESSIONS Compile-Time Step 3: Is
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EXPRESSIONS Runtime Evaluation of M
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EXPRESSIONS Examples: Array Access
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EXPRESSIONS Postfix Increment Opera
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EXPRESSIONS Prefix Increment Operat
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EXPRESSIONS Unary Minus Operator -
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EXPRESSIONS Multiplicative Operator
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EXPRESSIONS Division Operator / 15.
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EXPRESSIONS Remainder Operator % 15
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EXPRESSIONS String Concatenation Op
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EXPRESSIONS String Concatenation Op
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EXPRESSIONS Additive Operators (+ a
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EXPRESSIONS Numerical Comparison Op
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EXPRESSIONS Equality Operators 15.2
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EXPRESSIONS Reference Equality Oper
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EXPRESSIONS Conditional-Or Operator
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EXPRESSIONS Conditional Operator ?
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EXPRESSIONS Simple Assignment Opera
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EXPRESSIONS Compound Assignment Ope
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EXPRESSIONS Constant Expression 15.
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CHAPTER16 Definite Assignment All t
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DEFINITE ASSIGNMENT Definite Assign
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DEFINITE ASSIGNMENT The Boolean Ope
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DEFINITE ASSIGNMENT Assignment Expr
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DEFINITE ASSIGNMENT Other Expressio
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DEFINITE ASSIGNMENT Local Variable
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DEFINITE ASSIGNMENT switch Statemen
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DEFINITE ASSIGNMENT for Statements
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DEFINITE ASSIGNMENT try Statements
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CHAPTER17 Threads and Locks And oft
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THREADS AND LOCKS Incorrectly Synch
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THREADS AND LOCKS Memory Model 17.4
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THREADS AND LOCKS Actions 17.4.2
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THREADS AND LOCKS Happens-before Or
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THREADS AND LOCKS Executions 17.4.6
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THREADS AND LOCKS Executions and Ca
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THREADS AND LOCKS Observable Behavi
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THREADS AND LOCKS Final Field Seman
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THREADS AND LOCKS Semantics of Fina
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THREADS AND LOCKS Subsequent Modifi
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THREADS AND LOCKS Non-atomic Treatm
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THREADS AND LOCKS Notification 17.8
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THREADS AND LOCKS Sleep and Yield 1
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CHAPTER18 Syntax Is there grammar i
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SYNTAX The Grammar of the Java Prog
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A abrupt completion See completion,
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definite assignment before, 548 det
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See also numbers literals, term def
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See local class member See member c
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See also hiding; obscuring; scope;
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in assignment conversion context, 9
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of blank final class variables, 199
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interface, multiply inherited, 266
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division, evaluation, 493 equality
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easons why constructors cannot be,
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identity conversion in assignment c
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order, 428 expressions as statement
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L labeled statements identifiers in
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term definition, 122 type, 44 memor
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class, 175 constructor, 241 declara
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conversions of and to See conversio
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importing all public types from a,
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Q superclasses, accessing instances
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internal symbolic reference table,
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declaring class methods with, 216 h
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applicable by subtyping, 445 applic
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unchecked, 301 executed, 409 exit o
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precision, loss of, 81 preparation,
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termination and virtual machine exi
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members and constructors, 55 reifia
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of binary representation, of classe
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Colophon CAMERA-READY electronic co
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The Java Language Specification, Third Edition

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