Package java.io

Previous

Java API

Index

Next

Interface DataOutput

public  interface  java.io.DataOutput
{
        // Methods
    public abstract void write(byte  b[]);	
    public abstract void write(byte  b[], int  off, int  len)	
    public abstract void write(int  b);	
    public abstract void writeBoolean(boolean  v);	
    public abstract void writeByte(int  v);	
    public abstract void writeBytes(String  s);	
    public abstract void writeChar(int  v);	
    public abstract void writeChars(String  s);	
    public abstract void writeDouble(double  v);	
    public abstract void writeFloat(float  v);	
    public abstract void writeInt(int  v);	
    public abstract void writeLong(long  v);	
    public abstract void writeShort(int  v);	
    public abstract void writeUTF(String  str);	
}

The data output interface is implemented by streams that can write primitive Java data types to an output stream in a machine-independent manner.

See Also:	DataOutputStream DataInput .

Methods

write

public abstract void write(byte  b[]) 

throws IOException 

Writes b.length bytes from the specified byte array to this output stream.

Parameter	Description
b	the data

Throw:

IOException

If an I/O error occurs.

write

public abstract void write(byte  b[], int  off, int  len) 

throws IOException 

Writes len bytes from the specified byte array starting at offset off to this output stream.

Parameter	Description
b	the data
off	the start offset in the data
len	the number of bytes to write

Throw:

IOException

If an I/O error occurs.

write

public abstract void write(int  b) 

throws IOException 

Writes the specified byte to this data output stream.

Parameter	Description
b	the byte to be written

Throw:

IOException

If an I/O error occurs.

writeBoolean

public abstract void writeBoolean(boolean  v) 

throws IOException 

Writes a boolean value to this output stream.

Parameter	Description
v	the boolean to be written

Throw:

IOException

If an I/O error occurs.

writeByte

public abstract void writeByte(int  v) 

throws IOException 

Writes an 8-bit value to this output stream.

Parameter	Description
v	the byte value to be written

Throw:

IOException

If an I/O error occurs.

writeBytes

public abstract void writeBytes(String  s) 

throws IOException 

Writes out the string to this output stream as a sequence of bytes.

Parameter	Description
s	the string of bytes to be written

Throw:

IOException

If an I/O error occurs.

writeChar

public abstract void writeChar(int  v) 

throws IOException 

Writes a char value to this output stream.

Parameter	Description
v	the char value to be written

Throw:

IOException

If an I/O error occurs.

writeChars

public abstract void writeChars(String  s) 

throws IOException 

Writes a string to this output stream as a sequence of characters.

Parameter	Description
s	the string value to be written

Throw:

IOException

If an I/O error occurs.

writeDouble

public abstract void writeDouble(double  v) 

throws IOException 

Writes a double value to this output stream.

Parameter	Description
v	the double value to be written

Throw:

IOException

If an I/O error occurs.

writeFloat

public abstract void writeFloat(float  v) 

throws IOException 

Writes a float value to this output stream.

Parameter	Description
v	the float value to be written

Throw:

IOException

If an I/O error occurs.

writeInt

public abstract void writeInt(int  v) 

throws IOException 

Writes an int value to this output stream.

Parameter	Description
v	the int value to be written

Throw:

IOException

If an I/O error occurs.

writeLong

public abstract void writeLong(long  v) 

throws IOException 

Writes a long value to this output stream.

Parameter	Description
v	the long value to be written

Throw:

IOException

If an I/O error occurs.

writeShort

public abstract void writeShort(int  v) 

throws IOException 

Writes a 16-bit value to this output stream.

Parameter	Description
v	the short value to be written

Throw:

IOException

If an I/O error occurs.

writeUTF

public abstract void writeUTF(String  str) 

throws IOException 

Writes out a Unicode string that by encoded it using modified UTF-8 format.

Parameter	Description
str	the string value to be written

Throw:

IOException

If an I/O error occurs.