1 /*
   2  * Copyright (c) 1996, 2001, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.io;
  27 
  28 
  29 /**
  30  * Convenience class for reading character files.  The constructors of this
  31  * class assume that the default character encoding and the default byte-buffer
  32  * size are appropriate.  To specify these values yourself, construct an
  33  * InputStreamReader on a FileInputStream.
  34  *
  35  * <p><code>FileReader</code> is meant for reading streams of characters.
  36  * For reading streams of raw bytes, consider using a
  37  * <code>FileInputStream</code>.
  38  *
  39  * @see InputStreamReader
  40  * @see FileInputStream
  41  *
  42  * @author      Mark Reinhold
  43  * @since       1.1
  44  */
  45 public class FileReader extends InputStreamReader {
  46 
  47    /**
  48     * Creates a new <tt>FileReader</tt>, given the name of the
  49     * file to read from.
  50     *
  51     * @param fileName the name of the file to read from
  52     * @exception  FileNotFoundException  if the named file does not exist,
  53     *                   is a directory rather than a regular file,
  54     *                   or for some other reason cannot be opened for
  55     *                   reading.
  56     */
  57     public FileReader(String fileName) throws FileNotFoundException {
  58         super(new FileInputStream(fileName));
  59     }
  60 
  61    /**
  62     * Creates a new <tt>FileReader</tt>, given the <tt>File</tt>
  63     * to read from.
  64     *
  65     * @param file the <tt>File</tt> to read from
  66     * @exception  FileNotFoundException  if the file does not exist,
  67     *                   is a directory rather than a regular file,
  68     *                   or for some other reason cannot be opened for
  69     *                   reading.
  70     */
  71     public FileReader(File file) throws FileNotFoundException {
  72         super(new FileInputStream(file));
  73     }
  74 
  75    /**
  76     * Creates a new <tt>FileReader</tt>, given the
  77     * <tt>FileDescriptor</tt> to read from.
  78     *
  79     * @param fd the FileDescriptor to read from
  80     */
  81     public FileReader(FileDescriptor fd) {
  82         super(new FileInputStream(fd));
  83     }
  84 
  85 }