摘要: 运算符:对字面量或者变量进行操作的符号 表达式:用运算符把字面量或者变量连接起来,符合java语法的式子就可以成为表达式。 1.算数运算符: int c = a + b; +:是运算符,并且为算数运算符; a + b 是表达式,由于+时算数运算符,所以这个表达式为算术表达式 (1) 类型转换的分类: 阅读全文
posted @ 2025-10-10 23:30 chen1chen 阅读(1) 评论(0) 推荐(0)
摘要: 1.字面量分类 整型:默认int类型,如42、0x2F(十六进制);长整型需要加L,如100L 浮点型:默认double类型,float类型需要加F 字符型:单引号包裹;支持 Unicode 转义(如 '\u0041' 表示 'A') 布尔型:true、false,不可用0/1代替 字符串:双引号包 阅读全文
posted @ 2025-10-09 16:57 chen1chen 阅读(6) 评论(0) 推荐(0)
摘要: Unit Testing vs. Integration Testing 单元测试与集成测试 Unit testing: Test an Individual Unit or Basic Component of the System before Integration. 单元测试:在集成之前测试 阅读全文
posted @ 2023-02-27 22:46 chen1chen 阅读(498) 评论(0) 推荐(1)
摘要: Functional Testing: A program can be considered as a function that has inputs as a domain and outputs as a range. 功能测试: 一个程序可以被看作是一个函数,它的输入是一个域,输出是一个范 阅读全文
posted @ 2023-02-27 22:33 chen1chen 阅读(363) 评论(0) 推荐(0)
摘要: Data Flow Testing 数据流测试 Data flow testing is a form of structural testing techniques that focuses on the points in code where variables obtain valus ( 阅读全文
posted @ 2023-02-27 22:26 chen1chen 阅读(648) 评论(4) 推荐(0)
摘要: Connectedeness, Components and Cyclomatic Number 连通性、组件和循环数 Two nodes are connected if they are on ther same path. 如果两个节点在同一条路径上,它们就是相连的。 A component 阅读全文
posted @ 2023-02-27 22:25 chen1chen 阅读(464) 评论(0) 推荐(0)
摘要: What is Software Engineering? 什么是软件工程 The process of solving customers' problems by the systematic development and evolution of large, high-quality so 阅读全文
posted @ 2023-02-27 22:21 chen1chen 阅读(310) 评论(0) 推荐(0)