static void Main(string[] args)
{
Duck duck = new Duck();
duck.Eat();
duck.Fly();
duck.LayAnEgg();
duck.Swim();
duck.Walk();
Console.WriteLine("**Duck is checked\n");
Swan swan = new Swan();
swan.Eat();
swan.Fly();
swan.LayAnEgg();
swan.Swim();
swan.Walk();
Console.WriteLine("**Swan is checked\n");
Console.WriteLine("**Duck as a IBird");
IBird bird = new Duck(20, 10);
bird.Eat();
bird.Fly();
bird.LayAnEgg();
bird.Walk();
Console.WriteLine("\n**Swan as a IBird");
bird = new Swan(20, 10);
bird.Eat();
bird.Fly();
bird.LayAnEgg();
bird.Walk();
Console.WriteLine("\n**Duck as a IWaterFowl");
IWaterFowl waterFowl = new Duck(20, 1);
waterFowl.Eat();
waterFowl.Fly();
waterFowl.LayAnEgg();
waterFowl.Walk();
waterFowl.Swim();
Console.WriteLine("\n**Swan as a IWaterFowl");
waterFowl = new Swan(10, 1);
waterFowl.Eat();
waterFowl.Fly();
waterFowl.LayAnEgg();
waterFowl.Walk();
waterFowl.Swim();
}
