Java tutorial
/* * Copyright (c) 1996, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package java.io; /** * ObjectOutput extends the DataOutput interface to include writing of objects. * DataOutput includes methods for output of primitive types, ObjectOutput * extends that interface to include objects, arrays, and Strings. * * @author unascribed * @see java.io.InputStream * @see java.io.ObjectOutputStream * @see java.io.ObjectInputStream * @since 1.1 */ public interface ObjectOutput extends DataOutput, AutoCloseable { /** * Write an object to the underlying storage or stream. The * class that implements this interface defines how the object is * written. * * @param obj the object to be written * @exception IOException Any of the usual Input/Output related exceptions. */ public void writeObject(Object obj) throws IOException; /** * Writes a byte. This method will block until the byte is actually * written. * @param b the byte * @exception IOException If an I/O error has occurred. */ public void write(int b) throws IOException; /** * Writes an array of bytes. This method will block until the bytes * are actually written. * @param b the data to be written * @exception IOException If an I/O error has occurred. */ public void write(byte b[]) throws IOException; /** * Writes a sub array of bytes. * @param b the data to be written * @param off the start offset in the data * @param len the number of bytes that are written * @exception IOException If an I/O error has occurred. */ public void write(byte b[], int off, int len) throws IOException; /** * Flushes the stream. This will write any buffered * output bytes. * @exception IOException If an I/O error has occurred. */ public void flush() throws IOException; /** * Closes the stream. This method must be called * to release any resources associated with the * stream. * @exception IOException If an I/O error has occurred. */ public void close() throws IOException; }