The I/O Package - The Java Programming Language - page 776

public PrintWriter(String filename, String enc) tHRows

FileNotFoundException, UnsupportedEncodingException

Equivalent to PrintWriter(newOutputStreamWriter(fos, enc)) ,
where fos is a FileOutputStream created with the given file
name.

The Print streams implement the Appendable interface which allows them
to be targets for a Formatter . Additionally, the following convenience
methods are provided for formatted outputsee " Formatter " on page 624
for details:

public PrintWriter format(String format, Object... args)

Acts like new Formatter(this).format(format,args) , but a new
Formatter need not be created for each call. The current
PrintWriter is returned.

public PrintWriter format(Locale l, String format, Object... args)

Acts like new Formatter(this, l).format(format, args) , but a
new Formatter need not be created for each call. The current
PrintWriter is returned. Locales are described in Chapter 24 .

There are two printf methods that behave exactly the same as the
format methods printf stands for "print formatted" and is an old friend
from the C programming language.

One important characteristic of the Print streams is that none of the
output methods throw IOException . If an error occurs while writing to
the underlying stream the methods simply return normally. You should
check whether an error occurred by invoking the boolean method check-
Error this flushes the stream and checks its error state. Once an er-
ror has occurred, there is no way to clear it. If any of the underlying
stream operations result in an InterruptedIOException , the error state
is not set, but instead the current thread is re-interrupted using
Thread.currentThread().interrupt() .