The Java® Language Specification

List of Examples示例清单

3.10.5-1. String Literals字符串字面量

3.10.6-1. Text Blocks文本块

3.10.6-2. Escape sequences in text blocks文本块中的转义序列

3.10.6-3. Order of transformations on text block content文本块内容的转换顺序

3.10.6-4. Text blocks evaluate to String文本块计算为String

4.2.2-1. Integer Operations整数运算

4.2.4-1. Floating-point Operations浮点运算

4.3.1-1. Object Creation对象创建

4.3.1-2. Primitive and Reference Identity本原与参照恒等式

4.4-1. Members of a Type Variable类型变量的成员

4.5.1-1. Unbounded Wildcards无界通配符

4.5.1-2. Bounded Wildcards有界通配符

4.8-1. Raw Types原始类型

4.8-2. Raw Types and Inheritance原始类型和继承

4.11-1. Usage of a Type类型的用法

4.12.3-1. Different Kinds of Variables不同类型的变量

4.12.4-1. Final Variables最终变量

4.12.5-1. Initial Values of Variables变量的初始值

4.12.6-1. Type of a Variable versus Class of an Object变量的类型与对象的类

5.0-1. Conversions at Compile Time and Run Time编译时和运行时的转换

5.0-2. Conversions In Various Contexts不同语境下的转换

5.1.2-1. Widening Primitive Conversion扩大原语转换

5.1.3-1. Narrowing Primitive Conversion基本类型转换

5.1.3-2. Narrowing Primitive Conversions that lose information缩小丢失信息的原语转换范围

5.2-1. Assignment for Primitive Types基元类型的赋值

5.2-2. Assignment for Reference Types引用类型的赋值

5.2-3. Assignment for Array Types数组类型的赋值

5.5-1. Casting for Reference Types引用类型的转换

5.5-2. Casting for Array Types数组类型的强制转换

5.5-3. Casting Incompatible Types at Run Time在运行时强制转换不兼容的类型

5.6-1. Unary Numeric Promotion一元数字提升

5.6-2. Binary Numeric Promotion二进制数字升级

6.1-1. Unique Package Names唯一的包名称

6.1-2. Unique Module Names唯一模块名

6.1-3. Descriptive Class Names描述性类名

6.1-4. Conventional Type Variable Names常规类型变量名

6.3-1. Scope of Class Declarations类声明的范围

6.3-2. Scope of Local Variable Declarations局部变量声明的范围

6.4-1. Attempted Shadowing Of A Local Variable试图隐藏局部变量

6.4.1-1. Shadowing of a Field Declaration by a Local Variable Declaration局部变量声明对字段声明的隐藏

6.4.1-2. Shadowing of a Type Declaration by Another Type Declaration另一个类型声明对一个类型声明的隐藏

6.5.2-1. Reclassification of Contextually Ambiguous Names上下文歧义名称的重新分类

6.5.5.1-1. References to Type Parameters对类型参数的引用

6.5.5.2-1. Qualified Type Names限定类型名

6.5.6.1-1. Simple Expression Names简单表达式名称

6.5.6.1-2. References to Instance Variables对实例变量的引用

6.5.6.1-3. References to Local Variables and Formal Parameters对局部变量和形式参数的引用

6.5.6.2-1. Qualified Expression Names限定表达式名

6.5.6.2-2. Qualifying an Expression with a Type Name使用类型名称限定表达式

6.5.7.1-1. Simple Method Names简单方法名

6.6-1. Access Control访问控制

6.6-2. Access to public Fields, Methods, and Constructors对public字段、方法和构造函数的访问

6.6-3. Access to public and Non-public Classes访问public和非public类

6.6-4. Access to Package-Access Fields, Methods, and Constructors对包访问字段、方法和构造函数的访问

6.6-5. Access to private Fields, Methods, and Constructors对private字段、方法和构造函数的访问

6.6.2-1. Access to protected Fields, Methods, and Constructors对protected字段、方法和构造函数的访问

6.7-1. Fully Qualified Names完全限定名

6.7-2. Fully Qualified Names v. Canonical Name完全限定名与典名的对比

7.4.2-1. Unnamed Package未命名包

7.5.1-1. Single-Type-Import单一类型导入

7.5.1-2. Duplicate Class Declarations重复的类声明

7.5.1-3. No Import of a Subpackage不导入子包

7.5.1-4. Importing a Type Name that is also a Package Name导入同时也是包名称的类型名称

7.5.2-1. Type-Import-on-Demand类型按需导入

7.6-1. Conflicting Top Level Class and Interface Declarations冲突的顶级类和接口声明

7.6-2. Scope of Top Level Classes and Interfaces顶级类和接口的范围

7.6-3. Fully Qualified Names完全限定名

7.1.1-1. Resolution of requires transitive directivesrequires transitive指令的解决

8.1.1.1-1. Abstract Class Declaration抽象类声明

8.1.1.1-2. Abstract Class Declaration that Prohibits Subclasses禁止子类的抽象类声明

8.1.2-1. Mutually Recursive Type Variable Bounds互递归型变量界

8.1.2-2. Nested Generic Classes嵌套泛型类

8.1.3-1. Inner Class Declarations and Static Members内部类声明和静态成员

8.1.3-2. Inner Class Declarations内部类声明

8.1.4-1. Direct Superclasses and Subclasses直接超类和子类

8.1.4-2. Superclasses and Subclasses超类和子类

8.1.4-3. Class Depends on Itself阶级自立

8.1.5-1. Illegal Superinterfaces非法超级接口

8.1.5-2. Superinterfaces超接口

8.1.5-3. Illegal Multiple Inheritance of an Interface接口的非法多重继承

8.1.5-4. Implementing Methods of a Superinterface超接口的实现方法

8.2-1. Use of Class Members使用类成员

8.2-2. Inheritance of Class Members with Package Access具有包访问权限的类成员的继承

8.2-3. Inheritance of public and protected Class Memberspublic类成员和protected类成员的继承

8.2-4. Inheritance of private Class Membersprivate类成员的继承

8.2-5. Accessing Members of Inaccessible Classes访问不可访问类的成员

8.3-1. Multiply Inherited Fields多重继承字段

8.3-2. Re-inheritance of Fields字段的重新继承

8.3.1.1-1. static Fields字段

8.3.1.1-2. Hiding of Class Variables类变量的隐藏

8.3.1.1-3. Hiding of Instance Variables实例变量的隐藏

8.3.1.3-1. Persistence of transient Fieldstransient字段的持续性

8.3.1.4-1. volatile Fields字段

8.3.2-1. Field Initialization字段初始化

8.3.2-2. Forward Reference to a Class Variable对类变量的正向引用

8.3.3-1. Restrictions on Field References对字段引用的限制

8.4.2-1. Override-Equivalent Signatures覆盖等效签名

8.4.3.1-1. Abstract/Abstract Method Overriding抽象/抽象方法重写

8.4.3.1-2. Abstract/Non-Abstract Overriding抽象/非抽象重写

8.4.3.6-1. synchronized Monitors监视器

8.4.3.6-2. synchronized Methods方法

8.4.6-1. Type Variables as Thrown Exception Types类型变量作为抛出的异常类型

8.4.8-1. Inheritance继承

8.4.8.1-1. Overriding重写

8.4.8.1-2. Overriding重写

8.4.8.2-1. Invocation of Hidden Class Methods调用隐藏类方法

8.4.8.3-1. Covariant Return Types协变返回类型

8.4.8.3-2. Unchecked Warning from Return Type来自返回类型的未选中警告

8.4.8.3-3. Incorrect Overriding because of throws由于Throw引发的错误重写

8.4.8.3-4. Erasure Affects Overriding擦除影响覆盖

8.4.9-1. Overloading重载

8.4.9-2. Overloading, Overriding, and Hiding重载、重写和隐藏

8.8-1. Constructor Declarations构造函数声明

8.8.7-1. Constructor Bodies构造体

8.8.7.1-1. Restrictions on Explicit Constructor Invocation Statements显式构造函数调用语句的限制

8.8.7.1-2. Qualified Superclass Constructor Invocation限定超类构造函数调用

8.8.9-1. Default Constructors默认构造函数

8.8.9-2. Accessibility of Constructors v. Classes构造函数和类的可访问性对比

8.8.10-1. Preventing Instantiation via Constructor Accessibility防止通过构造函数可访问性进行实例化

8.9.2-1. Enum Body Declarations枚举体声明

8.9.2-2. Restriction On Enum Constant Self-Reference枚举常量自引用的限制

8.9.3-1. Iterating Over Enum Constants With An Enhanced for Loop使用增强的for循环迭代枚举常量

8.9.3-2. Switching Over Enum Constants切换枚举常量

8.9.3-3. Enum Constants with Class Bodies带有类主体的枚举常量

8.9.3-4. Multiple Enum Classes多个枚举类

9.3-1. Ambiguous Inherited Fields不明确的继承字段

9.3-2. Multiply Inherited Fields多重继承字段

9.3.1-1. Forward Reference to a Field对字段的正向引用

9.4.2-1. Overloading an abstract Method Declarationabstract抽象方法声明

9.6.1-1. Annotation Interface Declaration注释接口声明

9.6.1-2. Marker Annotation Interface Declaration标记注释接口声明

9.6.1-3. Single-Element Annotation Interface Declarations单元素注释接口声明

9.6.2-1. Annotation Interface Declaration With Default Values带有默认值的注释接口声明

9.6.3-1. Ill-formed Containing Annotation Interface包含注释接口的格式错误

9.6.3-2. Restricting Where Annotations May Repeat限制注释可能重复的位置

9.6.3-3. A Repeatable Containing Annotation Interface可重复的包含注释的接口

9.7.1-1. Normal Annotations正常注释

9.7.2-1. Marker Annotations标记注释

9.7.3-1. Single-Element Annotations单元素注释

9.8-1. Functional Interfaces功能接口

9.8-2. Functional Interfaces and Erasure功能接口和擦除

9.8-3. Generic Functional Interfaces通用功能接口

9.9-1. Function Types函数类型

9.9-2. Generic Function Types泛型函数类型

10.2-1. Declarations of Array Variables数组变量的声明

10.2-2. Array Variables and Array Types数组变量和数组类型

10.4-1. Array Access阵列访问

10.5-1. ArrayStoreException

10.6-1. Array Initializers数组初始值设定项

10.7-1. Arrays Are Cloneable数组是可克隆的

10.7-2. Shared Subarrays After A Clone克隆后的共享子阵列

10.8-1. Class Object Of Array数组的Class对象

10.8-2. Array Class Objects Are Shared数组Class对象是共享的

11.2.3-1. Catching Checked Exceptions捕获已检查的异常

11.3-1. Throwing and Catching Exceptions抛出和捕获异常

12.4.1-1. Superclasses Are Initialized Before Subclasses超类在子类之前初始化

12.4.1-2. Only The Class That Declares static Field Is Initialized仅初始化声明static字段的类

12.4.1-3. Interface Initialization Does Not Initialize Superinterfaces接口初始化不初始化超级接口

12.5-1. Evaluation of Instance Creation实例创建的评估

12.5-2. Dynamic Dispatch During Instance Creation实例创建期间的动态调度

13.4.4-1. Changing A Superclass更改超类

13.4.4-2. Introducing a Superclass引入超类

13.4.6-1. Changing A Class Body更改类体

13.4.6-2. Changing A Superclass更改超类

13.4.7-1. Changing Accessibility更改可访问性

13.4.8-1. Adding A Field Declaration添加字段声明

13.4.9-1. Changing A Variable To Be final将变量更改为final变量

13.4.16-1. Changing A Method To Be abstract将方法更改为abstract方法

13.4.17-1. Changing A Method To Be final将方法更改为final方法

13.4.23-1. Adding An Overloaded Method添加重载方法

13.5.4-1. Deleting An Interface Member删除接口成员

13.5.7-1. Adding A Default Method添加默认方法

14.3-1. Local Class Declarations局部类声明

14.4-1. Local Variables Declared With var用var声明的局部变量

14.4.1-1. Type of Local Variables Declared With var使用var声明的局部变量的类型

14.7-1. Labels and Identifiers标签和标识符

14.11.3-1. Fall-Through in the switch Statementswitch语句中的Fall-Through

14.13-1. The do Statementdo语句

14.14-1. Enhanced for And Arrays增强的for和数组

14.14-2. Enhanced for And Unboxing Conversion增强的for和拆箱转换

14.15-1. The break Statementbreak语句

14.16-1. The continue Statementcontinue语句

14.19-1. The synchronized Statementsynchronized语句

14.20.1-1. Catching An Exception捕捉异常

14.20.2-1. Handling An Uncaught Exception With finally使用finally处理未捕获的异常

14.21-1. The yield Statementyield语句

14.22-1. Conditional Compilation条件编译

15.7.1-1. Left-Hand Operand Is Evaluated First首先计算左手操作数

15.7.1-2. Implicit Left-Hand Operand In Operator Of Compound Assigment复合赋值运算符中的隐式左手操作数

15.7.1-3. Abrupt Completion of Evaluation of the Left-Hand Operand左侧操作数求值的突然完成

15.7.2-1. Evaluation of Operands Before Operation运算前操作数的求值

15.7.4-1. Evaluation Order At Method Invocation方法调用时的求值顺序

15.7.4-2. Abrupt Completion of Argument Expression论元表达式的突然完成

15.8.3-1. The this Expressionthis表达式

15.9.4-1. Evaluation Order and Out-Of-Memory Detection评估顺序和内存不足检测

15.10.2-1. Array Creation Evaluation数组创建评估

15.10.2-2. Multi-Dimensional Array Creation多维数组创建

15.10.2-3. OutOfMemoryError and Dimension Expression Evaluation和维表达式求值

15.10.4-1. Array Reference Is Evaluated First首先计算数组引用

15.10.4-2. Abrupt Completion of Array Reference Evaluation阵列参考评估的突然完成

15.10.4-3. null Array Reference数组引用

15.11.1-1. Static Binding for Field Access用于字段访问的静态绑定

15.11.1-2. Receiver Variable Is Irrelevant For static Field Access接收器变量与static字段访问无关

15.11.2-1. The super Expressionsuper表达式

15.12.2-1. Method Applicability方法适用性

15.12.2-2. Return Type Not Considered During Method Selection方法选择期间未考虑返回类型

15.12.2-3. Choosing The Most Specific Method选择最具体的方法

15.12.4.1-1. Target References and static Methods目标引用和static方法

15.12.4.1-2. Evaluation Order During Method Invocation方法调用期间的求值顺序

15.12.4.4-1. Overriding and Method Invocation重写和方法调用

15.12.4.4-2. Method Invocation Using super使用super调用方法

15.12.4.5-1. Invoked Method Signature Has Different Erasure Than Compile-Time Method Signature调用的方法签名与编译时方法签名具有不同的擦除

15.17.3-1. Integer Remainder Operator整数余数运算符

15.17.3-2. Floating-Point Remainder Operator浮点余数运算符

15.18.1-1. String Concatenation字符串串联

15.18.1-2. String Concatenation and Conditionals字符串连接和条件

15.20.2-1. The Type Comparison Operator类型比较运算符

15.26.1-1. Simple Assignment To An Array Component数组组件的简单赋值

15.26.2-1. Compound Assignment To An Array Component对数组组件的复合赋值

15.26.2-2. Value Of Left-Hand Side Of Compound Assignment Is Saved Before Evaluation Of Right-Hand Side复合赋值的左侧值在右侧求值之前保存

15.29-1. Constant Expressions常量表达式

16-1. Definite Assignment Considers Structure of Statements and Expressions定赋值考虑语句和表达式的结构

16-2. Definite Assignment Does Not Consider Values of Expressions明确赋值不考虑表达式的值

16-3. Definite Unassignment确定取消分配

17.4-1. Incorrectly Synchronized Programs May Exhibit Surprising Behavior不正确同步的程序可能会表现出令人惊讶的行为

17.4.5-1. Happens-before Consistency发生在一致性之前

17.4.8-1. Happens-before Consistency Is Not Sufficient在一致性不足之前发生

17.5-1. final Fields In The Java Memory ModelJava内存模型中的final字段

17.5-2. final Fields For Security为了安全性的final字段

17.5.3-1. Aggressive Optimization of final Fieldsfinal字段的渐进优化

17.6-1. Detection of Word Tearing单词撕裂检测