Java语言编码规范- 副本

Java语言编码规范

Java语言编码规范 (Java Code Conventions)

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Java语言编码规范

目 录

一、 规范简介 .................................................................................................... 4

1 目的 .................................................................................................................................................. 4 2 范围 .................................................................................................................................................. 4 3 参考文档 .......................................................................................................................................... 4 4 说明 .................................................................................................................................................. 4

二、 通用命名规则 ............................................................................................. 4

1.1 包(package) .............................................................................................. 4 1.2 类(class) ................................................................................................... 4 1.3 接口(interface) .......................................................................................... 2 1.4 方法(method) ............................................................................................ 2 1.5 变量(variable) ........................................................................................... 2 1.6 常量(constant) .......................................................................................... 2

三、 CHECKITEM、CHECKLINE的标记 ......................................................... 2 四、 JAVA编码规范 .......................................................................................... 3

1 文件 .................................................................................................................................................. 3

1.1 文件布局格式设置 ..................................................................................... 3 1.2 类的设计 ................................................................................................... 3 1.3 包和引用(package & import) ..................................................................... 4 1.4 注释(comment) ......................................................................................... 4

2 声明(DECLARATIONS)........................................................................................................................... 5

2.1 每行声明变量的数量(Number Per Line) ................................................... 5 2.2 初始化(Initialization) .......................................................................... 5 2.3 布局(Placement) ...................................................................................... 5

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Java语言编码规范

2.4 类和接口的声明(Class and Interface Declarations) ............................ 6

3 语法规则 .......................................................................................................................................... 6

1. 关于循环语句 ............................................................................................... 7 2. 关于条件语句 ............................................................................................... 7 3. 关于变量 ...................................................................................................... 8 4. 关于类型转换 ............................................................................................... 8 5. 关于try /catch ............................................................................................... 9 6. 关于return .................................................................................................... 9 7. 杂项 ............................................................................................................. 9

8. 空白(White Space) .............................................................................. 10

空行(Blank Lines) ........................................................................................ 10 空格(Blank Spaces) ...................................................................................... 10

4 编程惯例(PROGRAMMING PRACTICES) .................................................................................................. 11

4.1 提供对实例以及类变量的访问控制(Providing Access to Instance and Class Variables) .......................................................................................... 11 4.2 引用类变量和类方法(Referring to Class Variables and Methods) ..... 11 4.3 常量(Constants) .................................................................................... 11 4.4 变量赋值(Variable Assignments) .......................................................... 11 4.5 其它惯例(Miscellaneous Practices) ..................................................... 12

5 性能考虑 ........................................................................................................................................ 13

5.1 使用 StringBuffer 对象 ........................................................................ 13 5.2 可移植性 ................................................................................................. 13 5.3 换行 ........................................................................................................ 13 5.4 PrintStream ........................................................................................... 14

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