// Measurable.java
//  week09 code
//  a very simple interface to experiment with
// See also:
//  Circle.java
//  Rectangle.java
//  MeasuringStuff.java

// a class is measurable if
public interface Measurable {

    // it has a method like this (to get an object's area)
    public double getArea();

    // and it has a method like this (to get the object's perimeter)
    public double getPerimeter();

}