1  import java.awt.Rectangle;

  2  

  3  /**

  4     This program demonstrates the use of a Measurer.

  5  */

  6  public class DataSetTester2

  7  {

  8     public static void main(String[] args)

  9     {

 10        Measurer m = new RectangleMeasurer();

 11  

 12        DataSet data = new DataSet(m);

 13  

 14        data.add(new Rectangle(5, 10, 20, 30));

 15        data.add(new Rectangle(10, 20, 30, 40));

 16        data.add(new Rectangle(20, 30, 5, 15));

 17  

 18        System.out.println("Average area: " + data.getAverage());

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

 20  

 21        Rectangle max = (Rectangle) data.getMaximum();

 22        System.out.println("Maximum area rectangle: " + max);

 23        System.out.println("Expected: " 

 24           + "java.awt.Rectangle[x=10,y=20,width=30,height=40]");

 25     }

 26  }