1. Description
2. Field Summary
3. Constructor Summary
4. Method Summary
5. Constructor Details
   1. FileReader(String)
   2. FileReader(File)
   3. FileReader(FileDescriptor)
   4. FileReader(String, Charset)
   5. FileReader(File, Charset)

• Field Summary

  Fields declared in class Reader

  lock

  Modifier and Type

  Field

  Description

  protected Object

  lock

  The object used to synchronize operations on this stream.

• Constructor Summary

  Constructors
  Constructor

  Description

  FileReader(File file)

  Creates a new FileReader, given the File to read, using the default charset.

  FileReader(FileDescriptor fd)

  Creates a new FileReader, given the FileDescriptor to read, using the default charset.

  FileReader(File file, Charset charset)

  Creates a new FileReader, given the File to read and the charset.

  FileReader(String fileName)

  Creates a new FileReader, given the name of the file to read, using the default charset.

  FileReader(String fileName, Charset charset)

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

• Method Summary

  Methods declared in class InputStreamReader

  close, getEncoding, read, read, ready

  Modifier and Type

  Method

  Description

  void

  close()

  Closes the stream and releases any system resources associated with it.

  String

  getEncoding()

  Returns the name of the character encoding being used by this stream.

  int

  read()

  Reads a single character.

  int

  read(char[] cbuf, int off, int len)

  Reads characters into a portion of an array.

  boolean

  ready()

  Tells whether this stream is ready to be read.

  Methods declared in class Reader

  mark, markSupported, nullReader, of, read, read, readAllAsString, readAllLines, reset, skip, transferTo

  Modifier and Type

  Method

  Description

  void

  mark(int readAheadLimit)

  Marks the present position in the stream.

  boolean

  markSupported()

  Tells whether this stream supports the mark() operation.

  static Reader

  nullReader()

  Returns a new Reader that reads no characters.

  static Reader

  of(CharSequence cs)

  Returns a Reader that reads characters from a CharSequence.

  int

  read(char[] cbuf)

  Reads characters into an array.

  int

  read(CharBuffer target)

  Attempts to read characters into the specified character buffer.

  String

  readAllAsString()

  Reads all remaining characters into a string.

  List<String>

  readAllLines()

  Reads all remaining characters as lines of text.

  void

  reset()

  Resets the stream.

  long

  skip(long n)

  Skips characters.

  long

  transferTo(Writer out)

  Reads all characters from this reader and writes the characters to the given writer in the order that they are read.

  Methods declared in class Object

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

  Modifier and Type

  Method

  Description

  protected Object

  clone()

  Creates and returns a copy of this object.

  boolean

  equals(Object obj)

  Indicates whether some other object is "equal to" this one.

  protected void

  finalize()

  Deprecated, for removal: This API element is subject to removal in a future version.

  Finalization is deprecated and subject to removal in a future release.

  final Class<?>

  getClass()

  Returns the runtime class of this Object.

  int

  hashCode()

  Returns a hash code value for this object.

  final void

  notify()

  Wakes up a single thread that is waiting on this object's monitor.

  final void

  notifyAll()

  Wakes up all threads that are waiting on this object's monitor.

  String

  toString()

  Returns a string representation of the object.

  final void

  wait()

  Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

  final void

  wait(long timeoutMillis)

  Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

  final void

  wait(long timeoutMillis, int nanos)

  Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

• Constructor Details

  • FileReader

    public FileReader(String fileName) throws FileNotFoundException

    Creates a new FileReader, given the name of the file to read, using the 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. See Also:

    • Charset.defaultCharset()

  • FileReader

    public FileReader(File file) throws FileNotFoundException

    Creates a new FileReader, given the File to read, using the default charset.

    Parameters: file - the File 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. See Also:

    • Charset.defaultCharset()

  • FileReader

    public FileReader(FileDescriptor fd)

    Creates a new FileReader, given the FileDescriptor to read, using the default charset.

    Parameters: fd - the FileDescriptor to read See Also:

    • Charset.defaultCharset()

  • FileReader

    public FileReader(String fileName, Charset charset) throws IOException

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

    Parameters: fileName - the name of the file to read charset - 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

    Creates a new FileReader, given the File to read and the charset.

    Parameters: file - the File to read charset - 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

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