Appends the specified string to this writer.
Optionalstart: numberStart of substring in str to write
Optionalend: numberEnd of substring in str to write
Closes the stream, flushing it first.
Flushes the stream.
Writes an array, or portion thereof, of characters.
Optionaloff: numberOffset from which to start writing characters
Optionallen: numberNumber of characters to write
Abstract class for writing to character streams. The only methods that a subclass must implement are
write(string, number, number),flush(), andclose(). Most subclasses, however, will override some of the methods defined here in order to provide higher efficiency, additional functionality, or both.See java.io.Writer for full documentation