58. HashTable In C#

 using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Collections;


namespace HashTable

{

    class Program

    {

        static void Main(string[] args)

        {

            Hashtable h1 = new Hashtable();


            h1.Add("s1", "Milan");

            h1.Add("s2", "Bakotra");

            h1.Add("s3", "Divi");

            h1.Add("s4", "Divu");

            h1.Add("s5", "Vidhi");


            foreach (DictionaryEntry sname in h1)

            {

                Console.WriteLine("Key : " + sname.Key + "  And Value : " + sname.Value);

            }

            Console.WriteLine("ContainsKey() : " + h1.ContainsKey("s3"));

            Console.WriteLine("Contains() : " + h1.Contains("s6"));

            Console.WriteLine("ContainsValue() : " + h1.ContainsValue("Vidhi"));


            Console.WriteLine("===== Display All Key =====");


            foreach (String keys in h1.Keys)

            {

                Console.WriteLine(keys);

            }

            Console.WriteLine("===== Display All Values =====");


            foreach (String values in h1.Values)

            {

                Console.WriteLine(values);

            }

            Console.WriteLine("===== After Remove =====");

            h1.Remove("s3");

            foreach (String keys in h1.Keys)

            {

                Console.WriteLine(keys);

            }

            Console.WriteLine("===== Display All Values =====");


            foreach (String values in h1.Values)

            {

                Console.WriteLine(values);

            }

            Console.WriteLine("Total Element : " + h1.Count);

            Console.Read();

        }

    }

}

OUTPUT:
Key : s4  And Value : Divu
Key : s1  And Value : Milan
Key : s5  And Value : Vidhi
Key : s2  And Value : Bakotra
Key : s3  And Value : Divi
ContainsKey() : True
Contains() : False
ContainsValue() : True
===== Display All Key =====
s4
s1
s5
s2
s3
===== Display All Values =====
Divu
Milan
Vidhi
Bakotra
Divi
===== After Remove =====
s4
s1
s5
s2
===== Display All Values =====
Divu
Milan
Vidhi
Bakotra
Total Element : 4

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