The Java™ Tutorials — Concurrency ：Joins 插入

The Java™ Tutorials — Concurrency ：Joins 插入

原文地址：https://docs.oracle.com/javase/tutorial/essential/concurrency/join.html

关键点

join定义：

t.join()

会引起当前线程暂停执行直到t线程执行完毕
join也会抛出InterruptedException
join的等待时间也是不精确的

全文翻译

The join method allows one thread to wait for the completion of another. If t is a Thread object whose thread is currently executing,

join 方法可以让一个线程等待另一线程的完成。如果t是一个Thread对象，而且为正在执行的对象，

t.join()

causes the current thread to pause execution until t’s thread terminates. Overloads of join allow the programmer to specify a waiting period. However, as with sleep, join is dependent on the OS for timing, so you should not assume that join will wait exactly
as long as you specify.

会引起当前线程暂停执行直到t线程执行完毕。join的重载允许开发者指定等待时间。然而，同sleep一样，join的实际等待时间同样依赖于操作系统，所以你不应该假定join的等待时长会精确地等于你所指定的时间。

Like sleep, join responds to an interrupt by exiting with an InterruptedException.

类似sleep，join在响应中断时，会退出并抛出InterruptedException异常。