Tag: abstract class

using System; interface IPlay { string play(); } class hockey : IPlay { string IPlay.play() { return “yes ….hockey”; } } class cricket : IPlay { string IPlay.play() { return “cricket…”; } } class chess : IPlay { string IPlay.play() { return “chess”; } } class ui { public void PlayType(IPlay ptr) { Console.WriteLine(ptr.play()); } public static void Main() { ui obj = new ui(); obj.PlayType(new cricket()); obj.PlayType(new hockey()); obj.PlayType(new…