public Program(string[] args) { Console.Title = "Caching in C# - Sample" var token = new Token("this is my token key to access cache on memory and its unique"); var rnd = new Random(); for (var i = 0; i < 10;) { token.AddEntry(rnd.NextDouble().ToString(), DateTime.Now.AddSeconds(5 + i * 2)); } token.GetEntries().Select(entry => System.Console.WriteLine($"Entry value is '{entry}'."); );