22.7

java.io.StringBufferInputStream

THE PACKAGE JAVA.IO

22.7 The Class

java.io.StringBufferInputStream

A

StringBufferInputStream

 contains an internal buffer that contains bytes that

may be read from the stream. An internal counter keeps track of the next byte to

be supplied by the

read

 method. See also

ByteArrayInputStream

 ( 22.6).

public class StringBufferInputStream extends InputStream {

protected String buffer;

protected int pos;

protected int count;

public StringBufferInputStream(String s)

throws NullPointerException;

public int read();

public int read(byte[] b, int off, int len)

throws NullPointerException, IndexOutOfBoundsException;

public long skip(long n);

public int available();

public void reset();

}

Note that bytes read from a

StringBufferInputStream

 are the low order

eight bits of each character in the string; the high order eight bits of each character

are ignored.

22.7.1

protected String buffer;

A

String

 that was provided by the creator of the stream. Elements

buffer[0]

through

buffer[count 1]

 are the only bytes that can ever be read from this

stream; element

buffer[pos]

 is the next byte to be read.

22.7.2

protected int pos;

This value should always be nonnegative and not larger than the value of

count

.

The next byte to be read from this stream will be

buffer[pos]

.

22.7.3

protected int count;

This value equals the length of

buffer

. It is the number of bytes of data in

buffer

 that can ever be read from this stream.

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