Java by API/java.io/FileDescriptor

FileDescriptor: sync()

   <source lang="java">

import java.io.FileDescriptor; import java.io.FileOutputStream; public class Main {

 public static void main(String[] argv) throws Exception {
   FileOutputStream os = new FileOutputStream("outfilename");
   FileDescriptor fd = os.getFD();
   os.write(1);
   os.flush();
   fd.sync();
 }

}

 </source>