/*
 * Copyright (c) 1996, 2018, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package java.io;

import java.nio.charset.Charset;

/**
 * Reads text from character files using a default buffer size. Decoding from bytes
 * to characters uses either a specified {@linkplain java.nio.charset.Charset charset}
 * or the platform's
 * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}.
 *
 * <p>
 * The {@code FileReader} is meant for reading streams of characters. For reading
 * streams of raw bytes, consider using a {@code FileInputStream}.
 *
 * @see InputStreamReader
 * @see FileInputStream
 *
 * @author Mark Reinhold
 * @since 1.1
 */
public class FileReader extends InputStreamReader {

 /**
 * Creates a new {@code FileReader}, given the name of the file to read,
 * using the platform's
 * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}.
 *
 * @param fileName the name of the file to read
 * @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 {@code FileReader}, given the {@code File} to read,
 * using the platform's
 * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}.
 *
 * @param file the {@code File} to read
 * @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 {@code FileReader}, given the {@code FileDescriptor} to read,
 * using the platform's
 * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}.
 *
 * @param fd the {@code FileDescriptor} to read
 */
 public FileReader(FileDescriptor fd) {
 super(new FileInputStream(fd));
 }

 /**
 * Creates a new {@code FileReader}, given the name of the file to read
 * and the {@linkplain java.nio.charset.Charset charset}.
 *
 * @param fileName the name of the file to read
 * @param charset the {@linkplain java.nio.charset.Charset charset}
 * @exception IOException 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.
 *
 * @since 11
 */
 public FileReader(String fileName, Charset charset) throws IOException {
 super(new FileInputStream(fileName), charset);
 }

 /**
 * Creates a new {@code FileReader}, given the {@code File} to read and
 * the {@linkplain java.nio.charset.Charset charset}.
 *
 * @param file the {@code File} to read
 * @param charset the {@linkplain java.nio.charset.Charset charset}
 * @exception IOException if the file does not exist,
 * is a directory rather than a regular file,
 * or for some other reason cannot be opened for
 * reading.
 *
 * @since 11
 */
 public FileReader(File file, Charset charset) throws IOException {
 super(new FileInputStream(file), charset);
 }
}