java.lang.Object
java.io.Writer
java.io.OutputStreamWriter
java.io.FileWriter
- All Implemented Interfaces:
- Closeable,- Flushable,- Appendable,- AutoCloseable
Writes text to character files using a default buffer size. Encoding from characters
 to bytes uses either a specified charset
 or the default charset.
 
 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.
 
 The FileWriter is meant for writing streams of characters. For writing
 streams of raw bytes, consider using a FileOutputStream.
- Since:
- 1.1
- See Also:
- 
Field Summary
- 
Constructor SummaryConstructorsConstructorDescriptionFileWriter(File file) Constructs aFileWritergiven a file descriptor, using the default charset.FileWriter(File file, boolean append) Constructs aFileWritergiven theFileto write and a boolean indicating whether to append the data written, using the default charset.FileWriter(File file, Charset charset) FileWriter(File file, Charset charset, boolean append) Constructs aFileWritergiven theFileto write, charset and a boolean indicating whether to append the data written.FileWriter(String fileName) Constructs aFileWritergiven a file name, using the default charsetFileWriter(String fileName, boolean append) Constructs aFileWritergiven a file name and a boolean indicating whether to append the data written, using the default charset.FileWriter(String fileName, Charset charset) Constructs aFileWritergiven a file name and charset.FileWriter(String fileName, Charset charset, boolean append) Constructs aFileWritergiven a file name, charset and a boolean indicating whether to append the data written.
- 
Method SummaryMethods declared in class java.io.OutputStreamWriterclose, flush, getEncoding, write, write, write
- 
Constructor Details- 
FileWriterConstructs aFileWritergiven a file name, using the default charset- Parameters:
- fileName- String The system-dependent filename.
- 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
- See Also:
 
- 
FileWriterConstructs aFileWritergiven a file name and a boolean indicating whether to append the data written, using the default charset.- Parameters:
- 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.
- 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
- See Also:
 
- 
FileWriter- Parameters:
- file- the- Fileto write.
- 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
- See Also:
 
- 
FileWriterConstructs aFileWritergiven theFileto write and a boolean indicating whether to append the data written, using the default charset.- Parameters:
- file- the- Fileto write
- append- if- true, then bytes will be written to the end of the file rather than the beginning
- 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:
- 1.4
- See Also:
 
- 
FileWriterConstructs aFileWritergiven a file descriptor, using the default charset.- Parameters:
- fd- the- FileDescriptorto write.
- See Also:
 
- 
FileWriterConstructs aFileWritergiven a file name and charset.- Parameters:
- fileName- the name of the file to write
- charset- the charset
- 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
- Since:
- 11
 
- 
FileWriterConstructs aFileWritergiven a file name, charset and a boolean indicating whether to append the data written.- Parameters:
- fileName- the name of the file to write
- charset- the charset
- append- a boolean. If- true, the writer will write the data to the end of the file rather than the beginning.
- 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
- Since:
- 11
 
- 
FileWriter- Parameters:
- file- the- Fileto write
- charset- the charset
- 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:
- 11
 
- 
FileWriterConstructs aFileWritergiven theFileto write, charset and a boolean indicating whether to append the data written.- Parameters:
- file- the- Fileto write
- charset- the charset
- append- a boolean. If- true, the writer will write the data to the end of the file rather than the beginning.
- 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:
- 11
 
 
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