1 /*
2 * Copyright (c) 1996, 2018, 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
34 * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}.
35 *
36 * <p>
37 * The {@code FileReader} is meant for reading streams of characters. For reading
38 * streams of raw bytes, consider using a {@code FileInputStream}.
39 *
40 * @see InputStreamReader
41 * @see FileInputStream
42 *
43 * @author Mark Reinhold
44 * @since 1.1
45 */
46 public class FileReader extends InputStreamReader {
47
48 /**
49 * Creates a new {@code FileReader}, given the name of the file to read,
50 * using the platform's
51 * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}.
52 *
53 * @param fileName the name of the file to read
54 * @exception FileNotFoundException if the named file does not exist,
55 * is a directory rather than a regular file,
56 * or for some other reason cannot be opened for
57 * reading.
58 */
59 public FileReader(String fileName) throws FileNotFoundException {
60 super(new FileInputStream(fileName));
61 }
62
63 /**
64 * Creates a new {@code FileReader}, given the {@code File} to read,
65 * using the platform's
66 * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}.
67 *
68 * @param file the {@code File} to read
69 * @exception FileNotFoundException if the file does not exist,
70 * is a directory rather than a regular file,
71 * or for some other reason cannot be opened for
72 * reading.
73 */
74 public FileReader(File file) throws FileNotFoundException {
75 super(new FileInputStream(file));
76 }
77
78 /**
79 * Creates a new {@code FileReader}, given the {@code FileDescriptor} to read,
80 * using the platform's
81 * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}.
82 *
83 * @param fd the {@code FileDescriptor} to read
84 */
85 public FileReader(FileDescriptor fd) {
86 super(new FileInputStream(fd));
87 }
88
89 /**
90 * Creates a new {@code FileReader}, given the name of the file to read
91 * and the {@linkplain java.nio.charset.Charset charset}.
92 *
93 * @param fileName the name of the file to read
94 * @param charset the {@linkplain java.nio.charset.Charset charset}
95 * @exception IOException if the named file does not exist,
96 * is a directory rather than a regular file,
97 * or for some other reason cannot be opened for
98 * reading.
99 *
100 * @since 11
101 */
102 public FileReader(String fileName, Charset charset) throws IOException {
103 super(new FileInputStream(fileName), charset);
104 }
105
106 /**
107 * Creates a new {@code FileReader}, given the {@code File} to read and
108 * the {@linkplain java.nio.charset.Charset charset}.
109 *
110 * @param file the {@code File} to read
111 * @param charset the {@linkplain java.nio.charset.Charset charset}
112 * @exception IOException if the file does not exist,
113 * is a directory rather than a regular file,
114 * or for some other reason cannot be opened for
115 * reading.
116 *
117 * @since 11
118 */
119 public FileReader(File file, Charset charset) throws IOException {
120 super(new FileInputStream(file), charset);
121 }
122 }
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1 /*
2 * Copyright (c) 1996, 2019, 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
34 * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}.
35 *
36 * <p>
37 * The {@code FileReader} is meant for reading streams of characters. For reading
38 * streams of raw bytes, consider using a {@code FileInputStream}.
39 *
40 * @see InputStreamReader
41 * @see FileInputStream
42 *
43 * @author Mark Reinhold
44 * @since 1.1
45 */
46 public class FileReader extends InputStreamReader {
47
48 /**
49 * Creates a new {@code FileReader}, given the name of the file to read,
50 * using the platform's
51 * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}.
52 *
53 * @param fileName the name of the file to read
54 * @throws FileNotFoundException if the named file does not exist,
55 * is a directory rather than a regular file,
56 * or for some other reason cannot be opened for
57 * reading.
58 */
59 public FileReader(String fileName) throws FileNotFoundException {
60 super(new FileInputStream(fileName));
61 }
62
63 /**
64 * Creates a new {@code FileReader}, given the {@code File} to read,
65 * using the platform's
66 * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}.
67 *
68 * @param file the {@code File} to read
69 * @throws FileNotFoundException if the file does not exist,
70 * is a directory rather than a regular file,
71 * or for some other reason cannot be opened for
72 * reading.
73 */
74 public FileReader(File file) throws FileNotFoundException {
75 super(new FileInputStream(file));
76 }
77
78 /**
79 * Creates a new {@code FileReader}, given the {@code FileDescriptor} to read,
80 * using the platform's
81 * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}.
82 *
83 * @param fd the {@code FileDescriptor} to read
84 */
85 public FileReader(FileDescriptor fd) {
86 super(new FileInputStream(fd));
87 }
88
89 /**
90 * Creates a new {@code FileReader}, given the name of the file to read
91 * and the {@linkplain java.nio.charset.Charset charset}.
92 *
93 * @param fileName the name of the file to read
94 * @param charset the {@linkplain java.nio.charset.Charset charset}
95 * @throws IOException if the named file does not exist,
96 * is a directory rather than a regular file,
97 * or for some other reason cannot be opened for
98 * reading.
99 *
100 * @since 11
101 */
102 public FileReader(String fileName, Charset charset) throws IOException {
103 super(new FileInputStream(fileName), charset);
104 }
105
106 /**
107 * Creates a new {@code FileReader}, given the {@code File} to read and
108 * the {@linkplain java.nio.charset.Charset charset}.
109 *
110 * @param file the {@code File} to read
111 * @param charset the {@linkplain java.nio.charset.Charset charset}
112 * @throws IOException if the file does not exist,
113 * is a directory rather than a regular file,
114 * or for some other reason cannot be opened for
115 * reading.
116 *
117 * @since 11
118 */
119 public FileReader(File file, Charset charset) throws IOException {
120 super(new FileInputStream(file), charset);
121 }
122 }
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