幻想魚的幻想空間

// Main function

class MainFunc

    {

        static void Main(string[] args)

        {

            string[] animals = new string[] { "Koala", "Spider", "Elephant" };

            wherepractice prac = new wherepractice();

            // get animals of StartName is "S"

            prac.detailWhere(animals);

            // get amimals of StartName is "E"

            prac.lambdaWhere(animals);

            // as above result, but different implement.

            prac.delegateImpleWhere(animals);

            Console.ReadLine();

            return;

        }

    }

// subClass

        public void detailWhere(string[] animals)

        {

            var q = from a in animals

                    where a.StartsWith("S")

                    select a;



            foreach (string s in q)

            {

                printString(s);

            }

        }

        public void lambdaWhere(string[] animals)

        {

            var q = animals.Where(a => a.StartsWith("E"));

            foreach (string s in q)

            {

                printString(s);

            }

        }

        public void delegateImpleWhere(string[] animals)

        {

            // To utilize "delegate" to implement lambda expression "Where".

            var q = animals.Where(

                delegate(string a){return a.StartsWith("E");}

                );

            foreach (string s in q)

            {

                printString(s);

            }

        }