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java.lang.Object java.io.OutputStream java.io.ByteArrayOutputStream
public class ByteArrayOutputStream
Field Summary | |
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protected byte[] |
buf
|
protected int |
count
|
Constructor Summary | |
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ByteArrayOutputStream()
|
|
ByteArrayOutputStream(int size)
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Method Summary | |
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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 |
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flush, write |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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protected byte[] buf
protected int count
Constructor Detail |
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public ByteArrayOutputStream()
public ByteArrayOutputStream(int size)
Method Detail |
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public void ensureCapacity(int minCapacity)
public void close()
OutputStream
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.
close
in class OutputStream
public void reset()
public int size()
public byte[] toByteArray()
public String toString()
toString
in class Object
@Deprecated public String toString(int hibyte)
toString(String)
instead
public String toString(String charset)
public void write(byte[] b, int off, int len)
OutputStream
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.
write
in class OutputStream
b
- the data.off
- the start offset in the data.len
- the number of bytes to write.public void write(int b)
OutputStream
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.
write
in class OutputStream
b
- the byte
.public void writeTo(OutputStream os) throws IOException
IOException
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