Do not include synchronized methods into a loop structure.

不要将同步方法放到循环结构中。

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Recall that the methods of the Vector class are nearly all synchronized.

回想一下，vector类的方法几乎都是同步的。

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Recall that the methods of the Vector class are nearly all synchronized.

回想一下，vector类的方法几乎都是同步的。

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