Appends the specified string to this writer.
Optionalstart: number
Start of substring in str to write
Optionalend: number
End of substring in str to write
Closes the stream, flushing it first.
Flushes the stream.
Writes a line separator.
Writes an array, or portion thereof, of characters.
Optionaloff: number
Offset from which to start writing characters
Optionallen: number
Number of characters to write
Writes text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.
See java.io.BufferedWriter for full documentation