java.io
Class ByteArrayOutputStream

java.lang.Object
  java.io.OutputStream
      java.io.ByteArrayOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class ByteArrayOutputStream
extends OutputStream

Field Summary

protected byte[]	buf
protected int	count

Constructor Summary

ByteArrayOutputStream()

ByteArrayOutputStream(int size)

Method Summary

void	close() Closes this output stream and releases any system resources associated with this stream.
void	ensureCapacity(int minCapacity)
void	reset()
int	size()
byte[]	toByteArray()
String	toString()
String	toString(int hibyte) Deprecated. use toString(String) instead
String	toString(String charset)
void	write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this output stream.
void	write(int b) Writes the specified byte to this output stream.
void	writeTo(OutputStream os)

Methods inherited from class java.io.OutputStream

flush, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

buf

protected byte[] buf

count

protected int count

Constructor Detail

ByteArrayOutputStream

public ByteArrayOutputStream()

ByteArrayOutputStream

public ByteArrayOutputStream(int size)

Method Detail

ensureCapacity

public void ensureCapacity(int minCapacity)

close

public void close()

Description copied from class: OutputStream

Closes this output stream and releases any system resources associated with this stream. The general contract of close is that it closes the output stream. A closed stream cannot perform output operations and cannot be reopened.

The close method of OutputStream does nothing.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class OutputStream

reset

public void reset()

size

public int size()

toByteArray

public byte[] toByteArray()

toString

public String toString()

Overrides:

toString in class Object

toString

@Deprecated
public String toString(int hibyte)

Deprecated. use toString(String) instead

toString

public String toString(String charset)

write

public void write(byte[] b,
                  int off,
                  int len)

Description copied from class: OutputStream

Writes len bytes from the specified byte array starting at offset off to this output stream. The general contract for write(b, off, len) is that some of the bytes in the array b are written to the output stream in order; element b[off] is the first byte written and b[off+len-1] is the last byte written by this operation.

The write method of OutputStream calls the write method of one argument on each of the bytes to be written out. Subclasses are encouraged to override this method and provide a more efficient implementation.

If b is null, a NullPointerException is thrown.

If off is negative, or len is negative, or off+len is greater than the length of the array b, then an IndexOutOfBoundsException is thrown.

Overrides:

write in class OutputStream

Parameters:

b - the data.

off - the start offset in the data.

len - the number of bytes to write.

write

public void write(int b)

Description copied from class: OutputStream

Writes the specified byte to this output stream. The general contract for write is that one byte is written to the output stream. The byte to be written is the eight low-order bits of the argument b. The 24 high-order bits of b are ignored.

Subclasses of OutputStream must provide an implementation for this method.

Specified by:

write in class OutputStream

Parameters:

b - the byte.

writeTo

public void writeTo(OutputStream os)
             throws IOException

Throws:

IOException