Class: java.io.FileWriter

Convenience class for writing character files. The constructors of this class assume that the default character encoding and the default byte-buffer size are acceptable. To specify these values yourself, construct an OutputStreamWriter on a FileOutputStream.

Whether or not a file is available or may be created depends upon the underlying platform. Some platforms, in particular, allow a file to be opened for writing by only one FileWriter (or other file-writing object) at a time. In such situations the constructors in this class will fail if the file involved is already open.

FileWriter is meant for writing streams of characters. For writing streams of raw bytes, consider using a FileOutputStream.

Authors:
@author Mark Reinhold
See:
@see java.io.OutputStreamWriter
@see java.io.FileOutputStream
Since:
@since JDK1.1

Inheritance

Superclass tree: Implements:

Methods

  • FileWritertop

    public FileWriter(File file) throws IOException
    Constructs a FileWriter object given a File object.
    Parameters:
    @param file a File object to write to.
    Exceptions:
    @throws IOException if the file exists but is a directory rather than a regular file, does not exist but cannot be created, or cannot be opened for any other reason
    Related Links:
    Google Code Search
    Stack Overflow

  • FileWritertop

    public FileWriter(File file, boolean append) throws IOException
    Constructs a FileWriter object given a File object. If the second argument is true, then bytes will be written to the end of the file rather than the beginning.
    Parameters:
    @param file a File object to write to
    @param append if true, then bytes will be written to the end of the file rather than the beginning
    Exceptions:
    @throws IOException if the file exists but is a directory rather than a regular file, does not exist but cannot be created, or cannot be opened for any other reason
    Since:
    @since 1.4
    Related Links:
    Google Code Search
    Stack Overflow

  • FileWritertop

    public FileWriter(FileDescriptor fd)
    Constructs a FileWriter object associated with a file descriptor.
    Parameters:
    @param fd FileDescriptor object to write to.
    Related Links:
    Google Code Search
    Stack Overflow

  • FileWritertop

    public FileWriter(String fileName) throws IOException
    Constructs a FileWriter object given a file name.
    Parameters:
    @param fileName String The system-dependent filename.
    Exceptions:
    @throws IOException if the named file exists but is a directory rather than a regular file, does not exist but cannot be created, or cannot be opened for any other reason
    Related Links:
    Google Code Search
    Stack Overflow

  • FileWritertop

    public FileWriter(String fileName, boolean append) throws IOException
    Constructs a FileWriter object given a file name with a boolean indicating whether or not to append the data written.
    Parameters:
    @param fileName String The system-dependent filename.
    @param append boolean if true, then data will be written to the end of the file rather than the beginning.
    Exceptions:
    @throws IOException if the named file exists but is a directory rather than a regular file, does not exist but cannot be created, or cannot be opened for any other reason
    Related Links:
    Google Code Search
    Stack Overflow