public abstract interface ObjectOutput extends DataOutput {
    // Public Instance Methods
            public abstract void close() throws IOException;
            public abstract void flush() throws IOException;
            public abstract void write(int b) throws IOException;   // From DataOutput
            public abstract void write(byte[] b) throws IOException;  // From DataOutput
            public abstract void write(byte[] b, int off, int len) throws IOException;  // From DataOutput
            public abstract void writeObject(Object obj) throws IOException;
}