FileWriter class

Convenience class for writing character files.

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

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

Example Usage

// Writing to a text file
final writer = FileWriter('output.txt');
try {
  await writer.write('Hello, World!');
  await writer.writeLine();
  await writer.writeLine('This is a new line.');
  await writer.flush();
} finally {
  await writer.close();
}

// Appending to existing file
final writer = FileWriter('log.txt', append: true);
try {
  await writer.writeLine('${DateTime.now()}: New log entry');
  await writer.flush();
} finally {
  await writer.close();
}