C# List Declaration and Initialization

using System;

using System.Collections.Generic;

namespace Console_List_Declaration_and_Initialization

{

    class Program

    {

        static void Main(string[] args)

        {

            //A List has no fixed size unlike array

            //Declare and then Initialize

            List<int> Intlist; //reference variable

            Intlist = new List<int>(); // created with int default values 0 and referrred it using the reference variable

            Console.WriteLine("Initial capacity of Intlist: "+ Intlist.Capacity);

            //Declare and Initialize with default value in a statement

            List<string> persons = new List<string>();

            persons.Add("Ajeet");

            persons.Add("Mohan");

            persons.Add("Rina");

            persons.Add("Tom");

            //initialized with array

            string[] names = { "Jon", "Bob", "Sofia", "Lucy" };

            persons.AddRange(names);

            //Declare and Initialize with custom values in a { } block

            List<string> colors = new List<string>()

            {

                "pink", "blue", "red", "green", "cyan", "white"

            };

            Console.WriteLine("\nList persons");

            foreach (var p in persons)

            {

                Console.WriteLine(p);

            }

            Console.WriteLine("\nList names");

            foreach (var n in names)

            {

                Console.WriteLine(n);

            }

            Console.WriteLine("\nList colors");

            foreach (var c in colors)

            {

                Console.WriteLine(c);

            }

            Console.Read();

        }

    }

}

OUTPUT:

Initial capacity of Intlist: 0

List persons

Ajeet

Mohan

Rina

Tom

Jon

Bob

Sofia

Lucy

List names

Jon

Bob

Sofia

Lucy

List colors

pink

blue

red

green

cyan

white