J2ME in a Nutshell

Name

ByteArrayOutputStream

Synopsis

This subclass of OutputStream stores data written to it in a buffer which can later be retrieved using its toByteArray() method. When the stream is created, the buffer is empty. It is then expanded as data is written to the stream.

ByteArrayOutputStream is often used in J2ME in conjunction with a DataOutputStream to allow strings and Java primitives types to be stored in a byte array. This byte array is written to persistent storage on a device using the RecordStore APIs in the javax.microedition.rms package.

                  
public class ByteArrayOutputStream extends OutputStream {  
// Public Constructors
   public ByteArrayOutputStream();  
   public ByteArrayOutputStream( int size);    
// Public Instance Methods
   public void reset();                                          // synchronized
   public int size();  
   public byte[] toByteArray();                          // synchronized
                    
// Public Methods Overriding OutputStream
   public void close() throws IOException;                       // synchronized
   public void write( int b);                                    // synchronized
   public void write( byte[] b, int off, int len);       // synchronized
                    
// Public Methods Overriding Object
   public String toString();    
// Protected Instance Fields
   protected byte[] buf;  
   protected int count;  
}