static void Main(string[] args)
{
Earth[] array = new Earth[3];
Object obj_1 = new Ocean();
if (obj_1 is Ocean)
{
Console.WriteLine("Is Test!");
Ocean ocean = (Ocean)obj_1;
ocean.Show();
ocean.Sound();
}
Object obj_2 = new Kontinent("Africa");
Kontinent land = obj_2 as Kontinent;
if (land != null)
{
array[0] = land;
land.Show();
}
Island island = new Island("Kuba");
array[1] = island;
island.Show();
island.Sound();
IWater water = new Island("Kuba");
water.Show();
((Island)water).Show();
State state = new State("The USA");
array[2] = state;
state.Show();
state.Messege();
Console.WriteLine();
foreach (var item in array)
{
Printer.IAmPrinting(item);
}
}
public static void IAmPrinting(Earth earth)
{
Console.WriteLine(earth.ToString());
}