Java Formatter(OutputStream os) Constructor

public Formatter(OutputStream os)

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.Formatter;
/*from   w  w  w .ja  v a2s  . c  o  m*/
public class Main {

   public static void main(String[] args) throws FileNotFoundException {


      Formatter formatter = new Formatter(new FileOutputStream("generated/format.txt"));

      // format a new string
      String name = "from java2s.com";
      formatter.format("Hello %s !", name);

      // print the formatted string
      System.out.println(formatter);

      // flush the formatter. Here it does nothing.
      formatter.flush();
      System.out.println("Formatter Flushed.");
   }
}