一个非常简单的问题,谁能告诉我这个Read()读出的是些什么东西?

2002-09-10 09:07:29 70 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

Java输入流read()和readline()方法对比分析【实例讲解】即读取时间超时，但是从服务器发送过来的数据并不很长，所以按照正常情况下读取超时的情况一般是不会出现的，经过仔细研究发现是因为read()方法读取的是单个字符，会以流末尾作为结束，也就是说只要连接方一直在重复的发送数据，那么read()就会一直在读取一个很长的输入流，这样的话当然就会很容易造成读取超时的问题了，而我做的测试也正是让服务器端一直在向客户端发送相同的数据。也不要因为面试通过而沾沾自喜，等待你的将是更美好的未来，继续加油！//由于信息的传输是以二进制的形式，所以要以二进制的形式进行数据的读取。阅读详情

我想问一下Java.IO下边的*Reader中的Read()方法到底是读出的么东西,越清楚越透彻越好!
谢谢了.

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Python中read,readline,readlines三者的区别 read,readline,readlines三者的区别文件准备readreadlinereadlines总结 As we all know，python中读取文件常用的三种方法：read(),readline(),readlines();在一些互联网大中厂的面试或笔试中存在着这样的考题，询问三者的区别。以前看书的时候觉得这东西很简单，一眼扫过，根本没有用心去记它，直到真正使用或者被询问的时候，发... 阅读详情

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CatLuDn 2002-09-10

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没看明白的请看看java的文档,比较一下.net 的文档,你能看出两个写的有么不同吗?但是在读取非法字符时(我是所当前编码中)C#读取合理性竟然比java的好上很多!

CatLuDn 2002-09-10

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这些,我都知道.
来了这么多人,我就顺便问问--它与C#的system.io中的各reader的Read()方法有什么不同,没试过课千万不要做答啊!
原来看来一样的东西会有很多区别的啊!

netstarry 2002-09-10

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什么*reader?
看Returns:
The character read, as an integer in the range 0 to 65535 (0x00-0xffff), or -1 if the end of the stream has been reached
就知道这个函数返回什么了

namowen 2002-09-10

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返回输入流中当前可用字符的整数表示。如果到达文件结尾，返回-1。
也就是这样了，不知道怎么再详细了。：）

wjmmml 2002-09-10

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read
public int read()
throws IOException
Read a single character. This method will block until a character is available, an I/O error occurs, or the end of the stream is reached.
Subclasses that intend to support efficient single-character input should override this method.

Returns:
The character read, as an integer in the range 0 to 65535 (0x00-0xffff), or -1 if the end of the stream has been reached
Throws:
IOException - If an I/O error occurs

--------------------------------------------------------------------------------

read
public int read(char[] cbuf)
throws IOException
Read characters into an array. This method will block until some input is available, an I/O error occurs, or the end of the stream is reached.

Parameters:
cbuf - Destination buffer
Returns:
The number of characters read, or -1 if the end of the stream has been reached
Throws:
IOException - If an I/O error occurs

--------------------------------------------------------------------------------

read
public abstract int read(char[] cbuf,
int off,
int len)
throws IOException
Read characters into a portion of an array. This method will block until some input is available, an I/O error occurs, or the end of the stream is reached.

Parameters:
cbuf - Destination buffer
off - Offset at which to start storing characters
len - Maximum number of characters to read
Returns:
The number of characters read, or -1 if the end of the stream has been reached
Throws:
IOException - If an I/O error occurs

cat_hangzhou 2002-09-10

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倒,真的是很简单，不会看api啊：（
read
public int read()
throws IOExceptionRead a single character. This method will block until a character is available, an I/O error occurs, or the end of the stream is reached.
Subclasses that intend to support efficient single-character input should override this method.

Returns:
The character read, as an integer in the range 0 to 65535 (0x00-0xffff), or -1 if the end of the stream has been reached
Throws:
IOException - If an I/O error occurs
为什么是*Reader？指的事reader派生出来的类？嘿嘿，那有没有重载就要看不同的类了

一个非常简单的问题,谁能告诉我这个Read()读出的是些什么东西?

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