Module java.base

Package java.io

Class FileReader

java.lang.Object

java.io.Reader

java.io.InputStreamReader

java.io.FileReader

All Implemented Interfaces:

Closeable, AutoCloseable, Readable

public class FileReader
extends InputStreamReader

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.

FileReader is meant for reading streams of characters. For reading streams of raw bytes, consider using a FileInputStream.

Since:

1.1

See Also:

InputStreamReader, FileInputStream

Field Summary

Fields declared in class java.io.Reader

lock

Constructor Summary

Constructors

Constructor	Description
FileReader(File file)	Creates a new FileReader, given the File to read from.
FileReader(FileDescriptor fd)	Creates a new FileReader, given the FileDescriptor to read from.
FileReader(String fileName)	Creates a new FileReader, given the name of the file to read from.

Method Summary

Methods declared in class java.io.InputStreamReader

getEncoding, read, read, ready

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods declared in class java.io.Reader

close, mark, markSupported, read, read, reset, skip, transferTo

Constructor Detail

FileReader

public FileReader(String fileName)
           throws FileNotFoundException

Creates a new FileReader, given the name of the file to read from.

Parameters:

fileName - the name of the file to read from

Throws:

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.

FileReader

public FileReader(File file)
           throws FileNotFoundException

Creates a new FileReader, given the File to read from.

Parameters:

file - the File to read from

Throws:

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.

FileReader

public FileReader(FileDescriptor fd)

Creates a new FileReader, given the FileDescriptor to read from.

Parameters:

fd - the FileDescriptor to read from