public void InterfacesInCollectons()
        {
            var orange     = new Orange();     // used var becaus it is an variable  and newed it
            var fruitSalad = new List <IFruit> //take out() and add {} to make and add the list for the List
            {
                new Banana(),
                new Grape(),
                orange// just because oranged has been newed already so don't have to put new infront
            };

            foreach (var fruit in fruitSalad)
            {
                Console.WriteLine(fruit.Name);//fruit.-will only share the IFruit quility not squeeze
                Console.WriteLine(fruit.Peel());
                Assert.IsInstanceOfType(fruit, typeof(IFruit));
            }
            Console.WriteLine(orange.squeeze());// used it here since squeeze wasn't availabe above since it is differnt all other IFruits
        }
        public void InterfacesInCollections()
        {
            var orange = new Orange();

            var fruitSalad = new List <IFruit>
            {
                new Banana(),
                new Grape(),
                orange
            };

            foreach (var fruit in fruitSalad)
            {
                Console.WriteLine(fruit.Name);
                Console.WriteLine(fruit.Peel());
                Assert.IsInstanceOfType(fruit, typeof(IFruit));
            }
            Console.WriteLine(orange.Squeeze());
        }