// interfaces/PureInterface.java
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
// Interface only looked like this before Java 8.

public interface PureInterface {
  int m1();
  void m2();
  double m3();
}