java.util.Vector - 替代品 [英] java.util.Vector - alternatives

问题描述

以前我一直认为当长度未知时，Vector可以用于非描述对象。据我所知，我认为它也是线程安全的

Previously I would always have thought a Vector was good to use for non-descript objects when length was unknown. As far as I was aware I thought it was thread-safe too

什么会改变 Vector 不应该是否可以使用？

What would change that Vector shouldn't be used anymore, and what is the alternative?

推荐答案

你应该使用 ArrayList 而不是 Vector 。 Vector 使用了内部同步，但这对于实际的一致性来说很少有用，并且只在不需要时才会减慢执行速度。

You should use ArrayList instead of Vector. Vector used internal synchronisation, but that is rarely good enough for actual consistency, and only slows down execution when it is not really needed.

另见此stackoverflow问题 。

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