Is System.out buffered or unbuffered?

Question

Is System.out buffered or unbuffered?

I read this is an object of InputStream and PrinterStream is the type of object referenc

Answer 1

From http://docs.oracle.com/javase/8/docs/api/java/io/PrintStream.html:

Optionally, a PrintStream can be created so as to flush automatically; this means that the flush method is automatically invoked after a byte array is written, one of the println methods is invoked, or a newline character or byte ('\n') is written.