BufferedReader默认缓冲区大小? [英] BufferedReader default buffer size?
问题描述
根据文档, BufferedReader(Reader)
使用默认缓冲区大小,而第二个构造函数 BufferedReader(Reader,int)
允许设置缓冲区大小。
According to the documentation, BufferedReader(Reader)
uses a default buffer size, while the second constructor, BufferedReader(Reader, int)
allows the buffer size to be set.
public BufferedReader(Reader in)
public BufferedReader(Reader in)
创建一个使用默认大小的输入缓冲区的缓冲字符输入流。
Creates a buffering character-input stream that uses a default-sized input buffer.
然而,文档并没有提到什么默认缓冲区大小为。
However, the docs do not not mention what the default buffer size is.
BufferedReader的默认缓冲区大小是什么?
推荐答案
默认缓冲区大小为8192个字符
The default buffer size is 8192 characters
http://developer.android.com/reference/java/io/BufferedReader.html
BufferedReader(Reader in)
Constructs a new BufferedReader, providing in with a buffer of 8192 characters.
除了这个文档,我已经提取了rt.jar档案,并使用 JD-GUI 从java.io. *反编译BufferedReader.class,这是我在类定义中发现的:
Besides this documentation, I've extraced the rt.jar archive, and decompiled the BufferedReader.class from java.io.* using JD-GUI, this is what I found in the class definition:
private static int defaultCharBufferSize = 8192;
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