public interface Board
Continent
Country
java.util.Map<java.lang.String,? extends Continent>
getContinents()
Board
java.util.Set<? extends Country>
getCountries()
int
getNumberOfCountries()
java.util.Map<java.lang.String,? extends Continent> getContinents()
Map
String
int getNumberOfCountries()
java.util.Set<? extends Country> getCountries()
Set