Package Summary Overview Summary

class:Readable [NONE]

All Known Implementing Classes:

BufferedReader, CharArrayReader, CharBuffer, FileReader, FilterReader, InputStreamReader, LineNumberReader, PipedReader, PushbackReader, Reader, StringReader
```
public interface Readable
```
A Readable is a source of characters. Characters from a Readable are made available to callers of the read method via a CharBuffer.

Since:

1.5

method:read(java.nio.CharBuffer) [NONE]

read
```
int read(CharBuffer cb)
  throws IOException
```
Attempts to read characters into the specified character buffer. The buffer is used as a repository of characters as-is: the only changes made are the results of a put operation. No flipping or rewinding of the buffer is performed.

Parameters:

cb - the buffer to read characters into

Returns:

The number of char values added to the buffer, or -1 if this source of characters is at its end

Throws:

IOException - if an I/O error occurs

NullPointerException - if cb is null

ReadOnlyBufferException - if cb is a read only buffer

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