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| java.lang.Object
 java.io.OutputStream
java.io.FilterOutputStream
java.io.DataOutputStream
| DataOutputStream | | public class DataOutputStream extends FilterOutputStream implements DataOutput(Code) | | DataOutputStream is a filter class which can write typed data to a Stream.
Typically, this stream can be read in by a DataInputStream. Types that can be
written include byte, 16-bit short, 32-bit int, 32-bit float, 64-bit long,
64-bit double, byte strings, and UTF Strings.
See Also: DataInputStream |
| Constructor Summary | |
| public | DataOutputStream(OutputStream out)
Constructs a new DataOutputStream on the OutputStream out.
All writes can now be filtered through this stream. |
| Method Summary | |
| long | countUTFBytes(String str)
| | public void | flush()
Flush this DataOutputStream to ensure all pending data is sent out to the
target OutputStream. | | final public int | size()
Answers the total number of bytes written to this stream thus far. | | public void | write(byte buffer, int offset, int count)
Writes count bytes from the byte array
buffer starting at offset index to the
OutputStream. | | public void | write(int oneByte)
Writes the specified byte to the OutputStream. | | final public void | writeBoolean(boolean val)
Writes a boolean to this output stream. | | final public void | writeByte(int val)
Writes a 8-bit byte to this output stream. | | final public void | writeBytes(String str)
Writes the low order 8-bit bytes from a String to this output stream. | | final public void | writeChar(int val)
Writes the specified 16-bit character to the OutputStream. | | final public void | writeChars(String str)
Writes the specified 16-bit characters contained in str to the
OutputStream. | | final public void | writeDouble(double val)
Writes a 64-bit double to this output stream. | | final public void | writeFloat(float val)
Writes a 32-bit float to this output stream. | | final public void | writeInt(int val)
Writes a 32-bit int to this output stream. | | final public void | writeLong(long val)
Writes a 64-bit long to this output stream. | | final public void | writeShort(int val)
Writes the specified 16-bit short to the OutputStream. | | final public void | writeUTF(String str)
Writes the specified String out in UTF format. | | void | writeUTFBytes(String str, long count)
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| written | | protected int written(Code) | | The number of bytes written out so far
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| DataOutputStream | | public DataOutputStream(OutputStream out)(Code) | | Constructs a new DataOutputStream on the OutputStream out.
All writes can now be filtered through this stream. Note that data
written by this Stream is not in a human readable format but can be
reconstructed by using a DataInputStream on the resulting output.
Parameters:
out - the target OutputStream to filter writes on. |
| flush | | public void flush() throws IOException(Code) | | Flush this DataOutputStream to ensure all pending data is sent out to the
target OutputStream. This implementation flushes the target OutputStream.
throws:
IOException - If an error occurs attempting to flush this DataOutputStream. |
| size | | final public int size()(Code) | | Answers the total number of bytes written to this stream thus far.
the number of bytes written to this DataOutputStream. |
| write | | public void write(byte buffer, int offset, int count) throws IOException(Code) | | Writes count bytes from the byte array
buffer starting at offset index to the
OutputStream.
Parameters:
buffer - the buffer to be written
Parameters:
offset - offset in buffer to get bytes
Parameters:
count - number of bytes in buffer to write
throws:
IOException - If an error occurs attempting to write to thisDataOutputStream.
See Also: DataInput.readFully(byte[])
See Also: DataInput.readFully(byte[]intint) |
| write | | public void write(int oneByte) throws IOException(Code) | | Writes the specified byte to the OutputStream.
Parameters:
oneByte - the byte to be written
throws:
IOException - If an error occurs attempting to write to thisDataOutputStream.
See Also: DataInput.readByte |
| writeBoolean | | final public void writeBoolean(boolean val) throws IOException(Code) | | Writes a boolean to this output stream.
Parameters:
val - the boolean value to write to the OutputStream
throws:
IOException - If an error occurs attempting to write to thisDataOutputStream.
See Also: DataInput.readBoolean |
| writeChar | | final public void writeChar(int val) throws IOException(Code) | | Writes the specified 16-bit character to the OutputStream. Only the lower
2 bytes are written with the higher of the 2 bytes written first. This
represents the Unicode value of val.
Parameters:
val - the character to be written
throws:
IOException - If an error occurs attempting to write to thisDataOutputStream.
See Also: DataInput.readChar |
| writeChars | | final public void writeChars(String str) throws IOException(Code) | | Writes the specified 16-bit characters contained in str to the
OutputStream. Only the lower 2 bytes of each character are written with
the higher of the 2 bytes written first. This represents the Unicode
value of each character in str.
Parameters:
str - the String whose characters are to be written.
throws:
IOException - If an error occurs attempting to write to thisDataOutputStream.
See Also: DataInput.readChar |
| writeDouble | | final public void writeDouble(double val) throws IOException(Code) | | Writes a 64-bit double to this output stream. The resulting output is the
8 bytes resulting from calling Double.doubleToLongBits().
Parameters:
val - the double to be written.
throws:
IOException - If an error occurs attempting to write to thisDataOutputStream.
See Also: DataInput.readDouble |
| writeFloat | | final public void writeFloat(float val) throws IOException(Code) | | Writes a 32-bit float to this output stream. The resulting output is the
4 bytes resulting from calling Float.floatToIntBits().
Parameters:
val - the float to be written.
throws:
IOException - If an error occurs attempting to write to thisDataOutputStream.
See Also: DataInput.readFloat |
| writeInt | | final public void writeInt(int val) throws IOException(Code) | | Writes a 32-bit int to this output stream. The resulting output is the 4
bytes, highest order first, of val.
Parameters:
val - the int to be written.
throws:
IOException - If an error occurs attempting to write to thisDataOutputStream.
See Also: DataInput.readInt |
| writeLong | | final public void writeLong(long val) throws IOException(Code) | | Writes a 64-bit long to this output stream. The resulting output is the 8
bytes, highest order first, of val.
Parameters:
val - the long to be written.
throws:
IOException - If an error occurs attempting to write to thisDataOutputStream.
See Also: DataInput.readLong |
| writeShort | | final public void writeShort(int val) throws IOException(Code) | | Writes the specified 16-bit short to the OutputStream. Only the lower 2
bytes are written with the higher of the 2 bytes written first.
Parameters:
val - the short to be written
throws:
IOException - If an error occurs attempting to write to thisDataOutputStream.
See Also: DataInput.readShort
See Also: DataInput.readUnsignedShort |
| writeUTF | | final public void writeUTF(String str) throws IOException(Code) | | Writes the specified String out in UTF format.
Parameters:
str - the String to be written in UTF format.
throws:
IOException - If an error occurs attempting to write to thisDataOutputStream.
See Also: DataInput.readUTF |
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