Java常用类库comparable 的相关内容

文章 2023-08-08 来自：开发者社区

Java常用类库中（ThreadLocal、Comparable比较器、AutoCloseable、Optional空处理）附带相关面试题

1.ThreadLocal线程独立如果说每一个用户代表一个线程，那么当用户去访问自己的独有的比如id时候就应该正确返回自己的id。ThreadLocal就好比一个大储物柜里面有许多小的储物柜，每一个线程拥有自己的储物柜，方便自己拿取自己的东西，这样就能保证数据之间的独立与安全ThreadLocal类常用的方法：方法描述T get()返回当前线程关联的变量副本的值。如果没有设置过，则返回null。....

文章 2018-09-27 来自：开发者社区

Java 常用类库之比较类 Comparable

http://www.verejava.com/?id=169930999133100 /** 知识点：比较类 Comparable 题目: 将某班学生按数学成绩从小到大排序思路: 1. 抽象出类: 1.1 班级(ClassSet) 1.2 学生(Student) 2. 找出类关系: ...

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更新时间 2023-11-14 13:39:20

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