public class FileWriter extends OutputStreamWriter
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.
OutputStreamWriter,
FileOutputStream| Constructor and Description |
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FileWriter(File file)
Constructs a FileWriter object given a File object.
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FileWriter(File file,
boolean append)
Constructs a FileWriter object given a File object.
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FileWriter(FileDescriptor fd)
Constructs a FileWriter object associated with a file descriptor.
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FileWriter(String fileName)
Constructs a FileWriter object given a file name.
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FileWriter(String fileName,
boolean append)
Constructs a FileWriter object given a file name with a boolean
indicating whether or not to append the data written.
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close, flush, getEncoding, write, write, writepublic FileWriter(String fileName) throws IOException
fileName - String The system-dependent filename.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 reasonpublic FileWriter(String fileName, boolean append) throws IOException
fileName - String The system-dependent filename.append - boolean if true, then data will be written
to the end of the file rather than the beginning.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 reasonpublic FileWriter(File file) throws IOException
file - a File object to write to.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 reasonpublic FileWriter(File file, boolean append) throws IOException
true, then bytes will be written to the end
of the file rather than the beginning.file - a File object to write toappend - if true, then bytes will be written
to the end of the file rather than the beginningIOException - 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 reasonpublic FileWriter(FileDescriptor fd)
fd - FileDescriptor object to write to. Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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