Summary: Methods | [Expand All]
Since: API Level 1
public interface

DataOutput

java.io.DataOutput
Known Indirect Subclasses

Class Overview

Defines an interface for classes that are able to write typed data to some target. Typically, this data can be read in by a class which implements DataInput. 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 MUTF-8 encoded strings.

See Also

Summary

Public Methods
abstract void write(int oneByte)
Writes the specified 8-bit byte.
abstract void write(byte[] buffer, int offset, int count)
Writes count bytes from the byte array buffer starting at offset index.
abstract void write(byte[] buffer)
Writes the entire contents of the byte array buffer to this stream.
abstract void writeBoolean(boolean val)
Writes the specified boolean.
abstract void writeByte(int val)
Writes the specified 8-bit byte.
abstract void writeBytes(String str)
Writes the low order 8-bit bytes from the specified string.
abstract void writeChar(int val)
Writes the specified 16-bit character.
abstract void writeChars(String str)
Writes the 16-bit characters contained in str.
abstract void writeDouble(double val)
Writes the specified 64-bit double.
abstract void writeFloat(float val)
Writes the specified 32-bit float.
abstract void writeInt(int val)
Writes the specified 32-bit int.
abstract void writeLong(long val)
Writes the specified 64-bit long.
abstract void writeShort(int val)
Writes the specified 16-bit short.
abstract void writeUTF(String str)
Writes the specified string encoded in modified UTF-8.

Public Methods

public abstract void write (int oneByte)

Since: API Level 1

Writes the specified 8-bit byte.

Parameters
oneByte the byte to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void write (byte[] buffer, int offset, int count)

Since: API Level 1

Writes count bytes from the byte array buffer starting at offset index.

Parameters
buffer the buffer to write.
offset the index of the first byte in buffer to write.
count the number of bytes from the buffer to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void write (byte[] buffer)

Since: API Level 1

Writes the entire contents of the byte array buffer to this stream.

Parameters
buffer the buffer to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void writeBoolean (boolean val)

Since: API Level 1

Writes the specified boolean.

Parameters
val the boolean value to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void writeByte (int val)

Since: API Level 1

Writes the specified 8-bit byte.

Parameters
val the byte value to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void writeBytes (String str)

Since: API Level 1

Writes the low order 8-bit bytes from the specified string.

Parameters
str the string containing the bytes to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void writeChar (int val)

Since: API Level 1

Writes the specified 16-bit character. Only the two least significant bytes of the integer oneByte are written, with the higher one written first. This represents the Unicode value of the char.

Parameters
val the character to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void writeChars (String str)

Since: API Level 1

Writes the 16-bit characters contained in str.

Parameters
str the string that contains the characters to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void writeDouble (double val)

Since: API Level 1

Writes the specified 64-bit double. The resulting output is the eight bytes returned by doubleToLongBits(double).

Parameters
val the double to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void writeFloat (float val)

Since: API Level 1

Writes the specified 32-bit float. The resulting output is the four bytes returned by floatToIntBits(float).

Parameters
val the float to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void writeInt (int val)

Since: API Level 1

Writes the specified 32-bit int. The resulting output is the four bytes, highest order first, of val.

Parameters
val the int to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void writeLong (long val)

Since: API Level 1

Writes the specified 64-bit long. The resulting output is the eight bytes, highest order first, of val.

Parameters
val the long to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void writeShort (int val)

Since: API Level 1

Writes the specified 16-bit short. Only the lower two bytes of val are written with the higher one written first.

Parameters
val the short to write.
Throws
IOException if an I/O error occurs while writing.
See Also

public abstract void writeUTF (String str)

Since: API Level 1

Writes the specified string encoded in modified UTF-8.

Parameters
str the string to write encoded in modified UTF-8.
Throws
IOException if an I/O error occurs while writing.
See Also