本文介绍了关闭ByteArrayOutputStream无效?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

这句话是什么,关闭 ByteArrayOutputStream 无效()是什么意思?

What does this statement, "Closing a ByteArrayOutputStream has no effect" (http://java.sun.com/javase/6/docs/api/java/io/ByteArrayOutputStream.html#close()) mean?

我想确保释放 ByteArrayOutputStream 中的内存。 ByteArrayOutputStream.close()真的释放内存吗?

I want to make sure the memory in ByteArrayOutputStream gets released. Does ByteArrayOutputStream.close() really release the memory?

谢谢。

推荐答案

没有。它什么都没做。您可以查看其源代码:

No. It does absolutely nothing. You can look at its source code:

public void close() throws IOException {
}

要释放内存,请确保没有引用它并让垃圾收集器执行其操作。就像任何其他普通对象一样。

To release the memory, make sure there are no references to it and let the Garbage Collector do its thing. Just like with any other normal object.

基于文件和套接字的流是特殊的,因为它们使用非内存操作系统资源(文件句柄),你可以用完独立的记忆。这就是为什么明确地关闭它们很重要。但这不适用于纯粹基于内存的 ByteArrayOutputStream

File- and Socket-based streams are special because they use non-memory OS resources (file handles) that you can run out of independantly of memory. That's why closing them explicitly is important. But this does not apply to the purely memory-based ByteArrayOutputStream.

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10-15 03:40