1  /**

  2     This program demonstrates conversions between class and 

  3     interface types.

  4  */

  5  public class ConversionTester

  6  {

  7     public static Measurable larger(Measurable obj1, Measurable obj2)

  8     {

  9        if (obj1.getMeasure() > obj2.getMeasure()) 

 10        { 

 11           return obj1; 

 12        }

 13        else 

 14        { 

 15           return obj2; 

 16        }

 17     }

 18  

 19     public static void main(String[] args)

 20     {

 21        Country uruguay = new Country("Uruguay", 176220);

 22        Country thailand = new Country("Thailand", 513120);

 23        Measurable max = larger(uruguay, thailand);

 24        Country maxCountry = (Country) max;

 25        String name = maxCountry.getName();

 26        System.out.println("Country with larger area: " + name);

 27        System.out.println("Expected: Thailand");

 28     }

 29  }