Dictionaries_Various_Initializations

using System;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using System.Text.RegularExpressions;
namespace Learning
{

    /*  */

    class ListsExer_Problem02
    {
        static void Main()
        {
            //SortedDictionary<string, string> myContacts = new SortedDictionary<string, string>();
            //myContacts["Aglika"] = "+359 887 206 407";
            //myContacts["Yana MM"] = "+359 886 735 722";
            //myContacts["Kotseto TediMuerte"] = "+359 877 333 377";
            //myContacts["Taxi Yellow"] = "+359 2 91119";
            //myContacts["Fazzi"] = "+359 876 655 420";
            //string aglikaNum = myContacts["Aglika"];
            //Console.WriteLine(aglikaNum);
            //foreach (var contact in myContacts)
            //{
            //    var name = contact.Key;
            //    var number = contact.Value;
            //    Console.WriteLine($"{name}: {number}");
            //}

            //Dictionary<char, int> numberLetterRepeatsInText = new Dictionary<char, int>();
            //numberLetterRepeatsInText['a'] = 1000;
            //numberLetterRepeatsInText['b'] = 670;
            //numberLetterRepeatsInText['c'] = 623;
            //numberLetterRepeatsInText['d'] = 344;
            //numberLetterRepeatsInText['e'] = 812;

            //foreach(KeyValuePair<char, int> letterRepetition in numberLetterRepeatsInText)
            //{
            //    char letter = letterRepetition.Key;
            //    int timesRepeated = letterRepetition.Value;
            //    Console.WriteLine($"The letter \"{letter}\" repeats {timesRepeated} times in the given text.");
            //}

            Dictionary<string, List<double>> studentRecords = new Dictionary<string, List<double>>();
            studentRecords["Angel"] = new List<double>();
            studentRecords["Angel"].Add(5.50);
            studentRecords["Angel"].Add(4.75);
            studentRecords["Angel"].Add(5.25);
            //Console.WriteLine("Angel: {0}", studentRecords["Angel"]);
            foreach(var angelsRecord in studentRecords)
            {
                var name = angelsRecord.Key;
                Console.WriteLine("{0}'s marks: ", name);
                foreach(var grade in angelsRecord.Value)
                {
                    Console.WriteLine("\t\t{0} ", grade);
                }
            }
        }
    }
}