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 JDK1.1 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 */ FileReader(String fileName)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 */ FileReader(File file)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 */ FileReader(FileDescriptor fd)81 public FileReader(FileDescriptor fd) { 82 super(new FileInputStream(fd)); 83 } 84 85 } 86