Effective Java第三版1
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2022-08-08
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《Effective Java》第三版中文版
目录
第一章 介绍 ............................................................................................................................................1
第二章 创建和销毁对象 ........................................................................................................................4
1 考虑用静态工厂方法替换构造器..............................................................................................4
2 当遇到多个构造器参数时考虑用构建器(建造者)替换...........................................................7
3 用私有构造器或者枚举类型强化单例属性............................................................................18
4 通过私有构造器强化不可实例化的能力................................................................................21
5 依赖注入优先硬连接资源 @ ................................................................................................22
6 避免创建不必要的对象............................................................................................................24
8 避免使用终结方法和清理器....................................................................................................30
9 try-with-resources 优先 try-finally @....................................................................................35
第三章 对所有对象都通用的方法 ......................................................................................................37
10 覆写 equals 时候遵守通用规定.............................................................................................37
11 覆写 equals 时候总要覆写 hashCode ................................................................................53
12 始终覆写 toString...................................................................................................................56
13 小心覆写 clone.......................................................................................................................58
14 考虑实现 Comparable 接口..................................................................................................64
第四章 类和接口 ..................................................................................................................................70
15 使类和成员可见性最小...........................................................................................................70
16 公有类中使用访问方法而非公有域 .....................................................................................73
17 使可变性最小 .........................................................................................................................75
18 组合优于继承 .........................................................................................................................82
19 要么为继承而设计并提供文档，要么禁止继承 .................................................................88
20 接口优于抽象类 .....................................................................................................................93
21 为后代设计接口 @ ...............................................................................................................97
22 接口只用于定义类型 .............................................................................................................99
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