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集合中的类--->你关注过那些是线程安全的吗?
2022-06-22 09:10:00 【C_x_330】
在集合框架中,有些类是线程安全的,这些都是jdk1.1中的出现的。在jdk1.2之后,就出现许许多多非线程安全的类。 下面是这些线程安全的同步的类:
vector:就比arraylist多了个同步化机制(线程安全),因为效率较低,现在已经不太建议使用。在web应用中,特别是前台页面,往往效率(页面响应速度)是优先考虑的。
statck:堆栈类,先进后出
hashtable:就比hashmap多了个线程安全
enumeration:枚举,相当于迭代器
除了这些之外,其他的都是非线程安全的类和接口。
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