缓冲与非缓冲，使用哪个? [英] Buffered vs non buffered, which one to use?

问题描述

很抱歉，如果这是重复的，但我无法找到每种类型的最佳实践的明确答案.

I am sorry if this is a duplicate but I was not able to find a definitive answer to what is the best practice for each type.

我想知道什么条件定义了何时使用BufferedReader与FileReader或BufferedInput/OutputStream与FileInput/OutputStream?有没有一种公式可以始终告诉您什么是合适的?

I would like to know what the appropriate conditions are that define when to use BufferedReader vs FileReader or BufferedInput/OutputStream vs FileInput/OutputStream? Is there a formula of sorts that will always tell you what is appropriate?

我应该一直使用缓冲吗?

Should I just always used buffered?

谢谢

推荐答案

如果流将具有许多小的访问权限，请使用缓冲区.如果要访问的访问量相对较少，相对较大，请使用无缓冲.

Use a buffer if the stream is going to have lots of small access. Use unbuffered if you are going to have relatively few, relatively large accesses.

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