- java.lang.Object
- java.io.Reader
- java.io.InputStreamReader
- java.io.FileReader
- All Implemented Interfaces:
Closeable
,AutoCloseable
,Readable
public class FileReader extends InputStreamReader
Reads text from character files using a default buffer size. Decoding from bytes to characters uses either a specified charset or the platform's default charset.The
FileReader
is meant for reading streams of characters. For reading streams of raw bytes, consider using aFileInputStream
.- Since:
- 1.1
- See Also:
InputStreamReader
,FileInputStream
Constructor Summary
Constructors Constructor Description FileReader(File file)
FileReader(FileDescriptor fd)
FileReader(File file, Charset charset)
FileReader(String fileName)
Creates a newFileReader
, given the name of the file to read, using the platform's default charset.FileReader(String fileName, Charset charset)
Creates a newFileReader
, given the name of the file to read and the charset.
Method Summary
Methods declared in class java.io.InputStreamReader
getEncoding, read, read, ready
Methods declared in class java.io.Reader
close, mark, markSupported, nullReader, read, read, reset, skip, transferTo
Constructor Detail
FileReader
public FileReader(String fileName) throws FileNotFoundException
Creates a newFileReader
, given the name of the file to read, using the platform's default charset.- Parameters:
fileName
- the name of the file to read- 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
- Parameters:
file
- theFile
to read- 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)
- Parameters:
fd
- theFileDescriptor
to read
FileReader
public FileReader(String fileName, Charset charset) throws IOException
Creates a newFileReader
, given the name of the file to read and the charset.- Parameters:
fileName
- the name of the file to readcharset
- the charset- Throws:
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
FileReader
public FileReader(File file, Charset charset) throws IOException
- Parameters:
file
- theFile
to readcharset
- the charset- Throws:
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