Dictionary

Tolibjonov Abdulloh

Dictionary "TKey, TValue" shablonidagi klass bo'lib, System.Collection.Generics namespace sida joylashgan. Dictionary kalitlar va qiymatlar to'plami bo'lib, boshqa to'plamlar kabi kalit/qiymat ko'rinishida element qabul qiladi. Hashtable dan farqi, Dictionary da qidirish tizimi tezroq

    using System.Collections.Generic;

MUHIM QOIDALAR!

• Kalitlar bir xil bo'lmasligi kerak

• Kalit null qiymat qabul qilmaydi

Misol:

     Dictionary<string, string> Mdic = new Dictionary<string, string>();

            Mdic.Add("1", ".NET");   //1 juftliklar soni
            Mdic.Add("2", "C#");     //2
            Mdic.Add("3", "Asp.NET");//3
            Mdic.Add("4", "LINQ");   //4

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");

            foreach (var item in Mdic)
            {
                Console.WriteLine($"Kalit = {item.Key}  Qiymat = {item.Value}");
            }

    Dictionary<string, string> Mdic = new Dictionary<string, string>();

            Mdic.Add("1", ".NET");   //1 juftliklar soni
            Mdic.Add("2", "C#");     //2
            Mdic.Add("3", "Asp.NET");//3
            Mdic.Add("4", "LINQ");   //4

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");

            Dictionary<string, string>.KeyCollection KColl = Mdic.Keys;

            foreach (var item in KColl)
            {
                 Console.WriteLine($"kalit - {item}");
     }

    Dictionary<string, string> Mdic = new Dictionary<string, string>();

            Mdic.Add("1", ".NET");   //1 juftliklar soni
            Mdic.Add("2", "C#");     //2
            Mdic.Add("3", "Asp.NET");//3
            Mdic.Add("4", "LINQ");   //4

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");

            Dictionary<string, string>.ValueCollection VColl = Mdic.Values;

            foreach (var item in VColl)
            {
                Console.WriteLine($"qiymat - {item}");
            }

   static void Main(string[] args)
        {
            Dictionary<string, string> Mdic = new Dictionary<string, string>();

            Mdic.Add("1", ".NET");   //1 juftliklar soni
            Mdic.Add("2", "C#");     //2
            Mdic.Add("3", "Asp.NET");//3
            Mdic.Add("4", "LINQ");   //4

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");

            Console.WriteLine("Clear........");
            Mdic.Clear(); // hamma elementlarni o`chirib yuboradi

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");
        }

    static void Main(string[] args)
        {
            Dictionary<string, string> Mdic = new Dictionary<string, string>();

            Mdic.Add("1", ".NET");   //1 juftliklar soni
            Mdic.Add("2", "C#");     //2
            Mdic.Add("3", "Asp.NET");//3
            Mdic.Add("4", "LINQ");   //4

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");

            foreach (var item in Mdic)
            {
                Console.WriteLine($"kalit - {item.Key}   qiymat - {item.Value}");
            }

            Console.WriteLine("****************************");

            Mdic.Remove("1"); //kaliti 1 ga teng bo`lgan juftlikni o`chirib tashlaydi
            Mdic.Remove("2"); //kaliti 2 ga teng bo`lgan juftlikni o`chirib tashlaydi

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");

            foreach (var item in Mdic)
            {
                Console.WriteLine($"kalit - {item.Key}   qiymat - {item.Value}");
            }
        }