      1  import java.awt.Rectangle;

      2

      3  /**

      4     This program demonstrates the use of a Measurer.

      5  */

      6  public class MeasurerTester

      7  {

      8     public static void main(String[] args)

      9     {

     10        Measurer areaMeas = new AreaMeasurer();

     11

     12        Rectangle[] rects = new Rectangle[]

     13           {

     14              new Rectangle(5, 10, 20, 30),

     15              new Rectangle(10, 20, 30, 40),

     16              new Rectangle(20, 30, 5, 15)

     17           };

     18

     19        double averageArea = Data.average(rects, areaMeas);

     20        System.out.println("Average area: " + averageArea);

     21        System.out.println("Expected: 625");

     22     }

     23  }