Input and Output - Java - page 414

return return 1 ;

}

/* Java's DataStreams etc. are defined to be in network byte order */
java_offset = htonl ( OFFSET );

iif ( write ( fd , & java_offset , sizeof sizeof java_offset ) < 0 ) {

perror ( "write" );
return

return 1 ;

}

iif ( lseek ( fd , OFFSET , SEEK_SET ) < 0 ) {
perror ( "seek" );
return return 1 ;

}

iif ( write ( fd , MESSAGE , strlen ( MESSAGE )) != strlen ( MESSAGE )) {
perror ( "write2" );
return

return 1 ;

}

iif ( close ( fd ) < 0 ) {
perror ( "close!?" );
return return 1 ;

}

return return 0 ;

}

The implementation for object stream serialization is shown here:

public public class class SerialDemoObjectStream SerialDemoObjectStream extends extends SerialDemoAbstractBase {

protected protected static static final final String FILENAME = "serial.dat" ;

public public static static void void main ( String [] s ) throws throws Exception {

new new SerialDemoObjectStream (). save (); // in parent class; calls write

new new SerialDemoObjectStream (). dump (); // here

}

/** Does the actual serialization */
public

public void void write ( Object theGraph ) throws throws IOException {

// Save the data to disk.
ObjectOutputStream os = new

new ObjectOutputStream (

new new BufferedOutputStream (

new

new FileOutputStream ( FILENAME )));