java.io
Interface DataOutput

All Known Implementing Classes:

DataOutputStream

public interface DataOutput

Author:

Sven Köhler

Method Summary

void	write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to the underlying output stream.
void	write(int b) Writes the specified byte (the low eight bits of the argument b) to the underlying output stream.
void	writeBoolean(boolean v) Writes a boolean to the underlying output stream as a 1-byte value.
void	writeByte(int v) Writes out a byte to the underlying output stream as a 1-byte value.
void	writeBytes(String s)
void	writeChar(int v) Writes a char to the underlying output stream as a 2-byte value, high byte first.
void	writeChars(String s)
void	writeDouble(double v) Converts the double argument to a long using the doubleToLongBits method in class Double, and then writes that long value to the underlying output stream as an 8-byte quantity, high byte first.
void	writeFloat(float v) Converts the float argument to an int using the floatToIntBits method in class Float, and then writes that int value to the underlying output stream as a 4-byte quantity, high byte first.
void	writeInt(int v) Writes an int to the underlying output stream as four bytes, high byte first.
void	writeLong(long v) Writes a long to the underlying output stream as eight bytes, high byte first.
void	writeShort(int v) Writes a short to the underlying output stream as two bytes, high byte first.
void	writeUTF(String s)

Method Detail

write

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

Writes len bytes from the specified byte array starting at offset off to the underlying output stream. If no exception is thrown, the counter written is incremented by len.

Parameters:

b - the data.

off - the start offset in the data.

len - the number of bytes to write.

Throws:

IOException - if an I/O error occurs.

See Also:

FilterOutputStream.out

write

void write(int b)
           throws IOException

Writes the specified byte (the low eight bits of the argument b) to the underlying output stream. If no exception is thrown, the counter written is incremented by 1.

Implements the write method of OutputStream.

Parameters:

b - the byte to be written.

Throws:

IOException - if an I/O error occurs.

See Also:

FilterOutputStream.out

writeBoolean

void writeBoolean(boolean v)
                  throws IOException

Writes a boolean to the underlying output stream as a 1-byte value. The value true is written out as the value (byte)1; the value false is written out as the value (byte)0. If no exception is thrown, the counter written is incremented by 1.

Parameters:

v - a boolean value to be written.

Throws:

IOException - if an I/O error occurs.

See Also:

FilterOutputStream.out

writeByte

void writeByte(int v)
               throws IOException

Writes out a byte to the underlying output stream as a 1-byte value. If no exception is thrown, the counter written is incremented by 1.

Parameters:

v - a byte value to be written.

Throws:

IOException - if an I/O error occurs.

See Also:

FilterOutputStream.out

writeBytes

void writeBytes(String s)
                throws IOException

Throws:

IOException

writeChar

void writeChar(int v)
               throws IOException

Writes a char to the underlying output stream as a 2-byte value, high byte first. If no exception is thrown, the counter written is incremented by 2.

Parameters:

v - a char value to be written.

Throws:

IOException - if an I/O error occurs.

See Also:

FilterOutputStream.out

writeChars

void writeChars(String s)
                throws IOException

Throws:

IOException

writeDouble

void writeDouble(double v)
                 throws IOException

Converts the double argument to a long using the doubleToLongBits method in class Double, and then writes that long value to the underlying output stream as an 8-byte quantity, high byte first. If no exception is thrown, the counter written is incremented by 8.

Parameters:

v - a double value to be written.

Throws:

IOException - if an I/O error occurs.

See Also:

FilterOutputStream.out, Double.doubleToLongBits(double)

writeFloat

void writeFloat(float v)
                throws IOException

Converts the float argument to an int using the floatToIntBits method in class Float, and then writes that int value to the underlying output stream as a 4-byte quantity, high byte first. If no exception is thrown, the counter written is incremented by 4.

Parameters:

v - a float value to be written.

Throws:

IOException - if an I/O error occurs.

See Also:

FilterOutputStream.out, Float.floatToIntBits(float)

writeInt

void writeInt(int v)
              throws IOException

Writes an int to the underlying output stream as four bytes, high byte first. If no exception is thrown, the counter written is incremented by 4.

Parameters:

v - an int to be written.

Throws:

IOException - if an I/O error occurs.

See Also:

FilterOutputStream.out

writeLong

void writeLong(long v)
               throws IOException

Writes a long to the underlying output stream as eight bytes, high byte first. In no exception is thrown, the counter written is incremented by 8.

Parameters:

v - a long to be written.

Throws:

IOException - if an I/O error occurs.

See Also:

FilterOutputStream.out

writeShort

void writeShort(int v)
                throws IOException

Writes a short to the underlying output stream as two bytes, high byte first. If no exception is thrown, the counter written is incremented by 2.

Parameters:

v - a short to be written.

Throws:

IOException - if an I/O error occurs.

See Also:

FilterOutputStream.out

writeUTF

void writeUTF(String s)
              throws IOException

Throws:

IOException