/*
 * 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 Also:
Since: 1.1
/** * 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.
Params:
  • obj – the object to be written
Throws:
  • IOException – Any of the usual Input/Output related exceptions.
/** * 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.
Params:
  • b – the byte
Throws:
/** * 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.
Params:
  • b – the data to be written
Throws:
/** * 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.
Params:
  • b – the data to be written
  • off – the start offset in the data
  • len – the number of bytes that are written
Throws:
/** * 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.
Throws:
  • IOException – If an I/O error has occurred.
/** * 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.
Throws:
  • IOException – If an I/O error has occurred.
/** * 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; }