Hash table, ShortedList , Namespace

 

1. Hash table - It is used to store data in particular key.

. Hash table display data in random format.

Prog

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Collections;

 

 

namespace proghashtb

{

    class Program

    {

        static void Main(string[] args)

        {

            Hashtable h1 = new Hashtable();

            // insert element in hashtable

            h1.Add("101","nagpur");

            h1.Add("102", "pune");

            h1.Add("103", "mumbai");

            h1.Add("104", "Goa");

 

            foreach(string k in h1.Keys)

            {

                Console.WriteLine(k + " " + h1[k]);

            }

            Console.ReadKey();

 

        }

    }

}

2.shortedList:-

* Arranges data in specify order.

* It is used to pair the object method.

* All paired object is used (<…>).

* Paired object is used for dynamic variable.(using var keyword).

* Shorted list is used as keyconcept.

 

Prog:-

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Collections;

 

 

namespace progshortedlist

{

    class Program

    {

        static void Main(string[] args)

        {

 

            SortedList<int, string> st = new SortedList<int, string>();

            //inserted element in sorted list

            st.Add(3,"ngp");

            st.Add(1, "pune");

            st.Add(2,"goa");

 

            Console.WriteLine("After arranging element");

            foreach( var k in st)

            {

                Console.WriteLine(k.Key + " " + k.Value);

 

            }

            Console.ReadKey()

;        }

    }

}

# Namespace:-

* Namespace is a collection of class.

Ex.

 

Class student

Class employee

Class admission

Class college

Class account

Class company

Block college (admission,student, account)

Block comnpany (company,emp)

 

Prog

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

 

 

namespace prognamespace

{

    namespace college

    {

        class student

        {

            public void display()

            {

                Console.WriteLine("wel");

            }

        }

        class exam

        {

            public void show ()

            {

                Console.WriteLine("come");

            }

        }

    }

    class Program

    {

        static void Main(string[] args)

        {

            // how to create object

 

            college.student s2 = new college.student();

            college.exam e1 = new college.exam();

            s2.display();

            e1.show();

 

            Console.ReadKey();

 

        }

    }

}

Task 1 :- implementation of transeffring data between 2 namespace.

Task 2:- shorted and hash table into user input.