8、变量(Variable)、常量(Constant)、命名规范(Naming Convention) 8.1、变量(Variable) 变量就是可以变化的量。Java是一种强类型语言,每个变量都必须声明其类型。Java变量是程序中最基本的存储单元,其要素包括“变量类型(Variable Type)、变量名(Variable Name)、作用域(Action Scope)”。
Java Variable Naming Convention: Best Practices for Readable and Maintainable Code Variables naming cannot contain white spaces, for example:int num ber = 100; is invalid because the variable name has space in it. Variables should not start with a digit or contain special characters like@,#,$,...
Kebab caserefers to a naming convention in which each word in the variable's name is separated by a dash, similar to the snake case. However, there is no artifact in the Java programming language for whichkebab caseis recommended. Mainly, the problem is that the dash in a kebab-cased va...
Checkstyle规则示例: <modulename="Checker"><modulename="TreeWalker"><modulename="VariableNamingConvention"><propertyname="format"value="^[a-z][a-zA-Z0-9]*$"/><propertyname="applyToPrivate"value="true"/></module></module></module> 1. 2. 3. 4. 5. 6. 7. 8. 以上配置要求变量名称必...
some languages where, the way you name your variables, indicates to the compiler what type of variable it is. For instance, in Ruby, for declaring a constant variable you have to use only Uppercase for entire name of the variable. Ruby compiler identifies constant variables in that way only...
规范驼峰命名使用: 提示信息 Local variable and method parameter names should comply with a naming convention 代码片段 Map<String, List<ExcelExportColumn>>ColumnMap=newHashMap<>(16);ColumnMap.put("客诉权重KPI", exportColumnList); excelGenerator.generateExcelSheet(excelData,ColumnMap,"客诉权重KPI.xl...
Variable names should be short yet meaningful. The choice of a variable name should be mnemonic- that is, designed to indicate to the casual observer the intent of its use. One-character variable names should be avoided except for temporary "throwaway" variables. Common names for temporary varia...
data_type variable = value; Example: int x = 99; Variable Naming Convention in Java: Earlier we have learnt that Java is a Case Sensitive Language. Even variables have their own naming convention to follow. 1. Variable name can starts with special characters such as _ or $ ...
/** Hyphenated variable naming convention, e.g., "lower-hyphen". */ 代表连字符的变量命名规范,例如user-name,user-age等。 为了减少大家的阅读源码的工作量,这里把5个枚举及意义都拿出来说一下。 | 枚举变量 | 说明 | | --- | --- | | CaseFormat.LOWER_HYPHEN | 连字符的变量命名规范,形式lower...
9. 命名规范(Naming Convention) 8 10. 编程惯例(Programming Practices) 8 10.1 提供对实例以及类变量的访问控制(Providing Access to Instance and Class Variables) 8 10.2 引用类变量和类方法(Referring to Class Variables and Methods) 8 10.4 变量赋值(Variable Assignments) 8 ...