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Java Source Code / Java Documentation  » 6.0 JDK Core » io nio » java.io 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


        /*
         * Copyright 1996-2001 Sun Microsystems, Inc.  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.  Sun designates this
         * particular file as subject to the "Classpath" exception as provided
         * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
         * CA 95054 USA or visit www.sun.com if you need additional information or
         * have any questions.
         */

        package java.io;

        /**
         * Convenience class for reading character files.  The constructors of this
         * class assume that the default character encoding and the default byte-buffer
         * size are appropriate.  To specify these values yourself, construct an
         * InputStreamReader on a FileInputStream.
         *
         * <p><code>FileReader</code> is meant for reading streams of characters.
         * For reading streams of raw bytes, consider using a
         * <code>FileInputStream</code>.
         *
         * @see InputStreamReader
         * @see FileInputStream
         *
         * @version 	1.22, 07/05/05
         * @author	Mark Reinhold
         * @since	JDK1.1
         */
        public class FileReader extends InputStreamReader {

            /**
             * Creates a new <tt>FileReader</tt>, given the name of the
             * file to read from.
             *
             * @param fileName the name of the file to read from
             * @exception  FileNotFoundException  if the named file does not exist,
             *                   is a directory rather than a regular file,
             *                   or for some other reason cannot be opened for
             *                   reading.
             */
            public FileReader(String fileName) throws FileNotFoundException {
                super (new FileInputStream(fileName));
            }

            /**
             * Creates a new <tt>FileReader</tt>, given the <tt>File</tt> 
             * to read from.
             *
             * @param file the <tt>File</tt> to read from
             * @exception  FileNotFoundException  if the file does not exist,
             *                   is a directory rather than a regular file,
             *                   or for some other reason cannot be opened for
             *                   reading.
             */
            public FileReader(File file) throws FileNotFoundException {
                super (new FileInputStream(file));
            }

            /**
             * Creates a new <tt>FileReader</tt>, given the 
             * <tt>FileDescriptor</tt> to read from.
             *
             * @param fd the FileDescriptor to read from
             */
            public FileReader(FileDescriptor fd) {
                super (new FileInputStream(fd));
            }

        }
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