J2ME in a Nutshell

Name

DataOutput

Synopsis

This interface is implemented by classes that write strings and Java primitive types to a platform-independent binary encoding that can be read by a class implementing the DataInput interface.

Methods are provided for writing a single byte or an array of bytes as well as primitives of type boolean, char, int, long and short.

The writeChars() method writes the content of a String as an array of 16-bit characters. In many cases, it is more efficient to output a String by using the writeUtf() method. This method encodes the characters in the String using a slightly modified form of UTF-8, which results in Unicode characters with values in the range 0-127 inclusive being encoded as a single byte. This is an optimization for the most common characters in Western locales.

public interface DataOutput {  
// Public Instance Methods
   public abstract void write(
        byte[] b) throws IOException;  
   public abstract void write( int b) throws IOException;  
   public abstract void write(byte[] b, int off, 
        int len) throws IOException;  
   public abstract void writeBoolean(
        boolean v) throws IOException;  
   public abstract void writeByte( int v) throws IOException;  
   public abstract void writeChar( int v) throws IOException;  
   public abstract void writeChars(
        String s) throws IOException;  
   public abstract void writeInt( int v) throws IOException;  
   public abstract void writeLong(long v) throws IOException;  
   public abstract void writeShort(int v) throws IOException;  
   public abstract void writeUTF( String ...