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Showing content from https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/io/FileReader.html below:

FileReader (Java SE 21 & JDK 21)

All Implemented Interfaces:

Closeable, AutoCloseable, Readable

Reads text from character files using a default buffer size. Decoding from bytes to characters uses either a specified

or the

.

The 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
• Charset.defaultCharset()

• Field Summary
• Constructor Summary

  Constructors

  Creates a new

  FileReader

  , given the

  File

  to read, using the

  default charset

  .

  Creates a new

  FileReader

  , given the

  FileDescriptor

  to read, using the

  default charset

  .

  Creates a new

  FileReader

  , given the

  File

  to read and the

  charset

  .

  Creates a new

  FileReader

  , given the name of the file to read, using the

  default charset

  .

  Creates a new

  FileReader

  , given the name of the file to read and the

  charset

  .

• Method Summary Methods declared in class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Constructor Details
  • FileReader

    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

    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

    Creates a new

    FileReader

    , given the

    FileDescriptor

    to read, using the

    default charset

    .

    Parameters:

    fd - the FileDescriptor to read

    See Also:

    • Charset.defaultCharset()

  • FileReader

    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

    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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