C Sharpt - Dictionary - OrderByDescending and distinct method - Baby step to try out methods of Dictionary class, learn API

CSharpDictionaryClassOrderbyAndDistinct.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DictionaryOrderBy
{
    class Program
    {
        static void Main(string[] args)
        {

            tryOrderByDescending();
            tryDistinct(); 
        }

        /*
         * Dictionary class OrderByDescending
         * 
         * June 9, 2016
         */
        public static void tryOrderByDescending()
        {
            Dictionary<int, string> d = new Dictionary<int, string>();
            d.Add(5, "Foo5");
            d.Add(1, "Foo1");
            d.Add(3, "Foo3");

            var result = d.OrderByDescending(i => i.Key);

            var result2 = d.OrderByDescending(i => i.Value);


            string s = "";

            foreach (KeyValuePair<int, string> runner in result2)
            {
                s += runner.Key.ToString() + "=" + runner.Value.ToString() + " ";
            }


            //or
            IEnumerable<KeyValuePair<int, string>> result1 = d.OrderByDescending(i => i.Key);
            foreach (KeyValuePair<int, string> kvp in result)
            {
                Console.WriteLine(kvp.Value);
            }
            Console.WriteLine("Second Option");
            foreach (KeyValuePair<int, string> kvp in result1)
            {
                Console.WriteLine(kvp.Value);
            }
        }

        /*
         * Dictionary Class Distinct 
         * 
         * June 10, 2016
         */
        public static void tryDistinct()
        {
            List<int> ages = new List<int> { 21, 46, 46, 55, 17, 21, 55, 55 };

            IEnumerable<int> distinctAges = ages.Distinct();

            Console.WriteLine("Distinct ages:");

            foreach (int age in distinctAges)
            {
                Console.WriteLine(age);
            }

            /*
             This code produces the following output:

             Distinct ages:
             21
             46
             55
             17
            */
        }
    }
}