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?

[CatLuDn]

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.

[cat_hangzhou]

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

[wjmmml]

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

[namowen]

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。：）

[netstarry]

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

[CatLuDn]

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!

[CatLuDn]

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!