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java.lang.Object
|
+--java.io.OutputStream
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+--java.io.ByteArrayOutputStream
This class implements an output stream in which the data is
written into a byte array. The buffer automatically grows as data
is written to it.
The data can be retrieved using toByteArray() and
toString().
| Field Summary | ||
protected byte[] |
buf
The buffer where data is stored. |
|
protected int |
count
The number of valid bytes in the buffer. |
|
| Constructor Summary | ||
ByteArrayOutputStream()
Creates a new byte array output stream. |
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ByteArrayOutputStream(int size)
Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes. |
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| Method Summary | ||
void |
close()
Closes this output stream and releases any system resources associated with this stream. |
|
void |
reset()
Resets the count field of this byte array output
stream to zero, so that all currently accumulated output in the
output stream is discarded. |
|
int |
size()
Returns the current size of the buffer. |
|
byte[] |
toByteArray()
Creates a newly allocated byte array. |
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String |
toString()
Converts the buffer's contents into a string, translating bytes into characters according to the platform's default character encoding. |
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void |
write(byte[] b,
int off,
int len)
Writes len bytes from the specified byte array
starting at offset off to this byte array output stream. |
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void |
write(int b)
Writes the specified byte to this byte array output stream. |
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| Methods inherited from class java.io.OutputStream |
flush, write |
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Field Detail |
| Constructor Detail |
public ByteArrayOutputStream()
public ByteArrayOutputStream(int size)
size - the initial size.IllegalArgumentException - if size is negative.| Method Detail |
public void close()
throws IOException
close in class OutputStream
OutputStreamIOException - if an I/O error occurs.public void reset()
count field of this byte array output
stream to zero, so that all currently accumulated output in the
output stream is discarded. The output stream can be used again,
reusing the already allocated buffer space.ByteArrayInputStream.countpublic int size()
count field, which is the number
of valid bytes in this output stream.countpublic byte[] toByteArray()
size()
public void write(byte[] b,
int off,
int len)
len bytes from the specified byte array
starting at offset off to this byte array output stream.write in class OutputStreamb - the data.off - the start offset in the data.len - the number of bytes to write.public void write(int b)
write in class OutputStreamb - the byte to be written.
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Copyright 1999-2007 Research In Motion Limited. 295 Phillip Street, Waterloo, Ontario, Canada, N2L 3W8. All Rights Reserved.
Copyright 1993-2003 Sun Microsystems, Inc. 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
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