using System;

public class Program

{

    public static void Main()

    {

        // before we actually dive into loops there has to be some data type which could enable us to saving a collection

        // knowledge of such a type is crucial because if we want to use loops they can only be used for a 

        // collection of a certain type variable and not on individual variable

        // let's make a new variable but it is of type array

​

        int [] anIntegerArray = new int[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 0};

​

        char [] aCharacterArray = new char[] {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J'};

        // to access a value from an array we would use a [] index with name of array

        // below statement will print out 1

        Console.WriteLine("An integer: " + anIntegerArray[0]);

        // but to be able to print all elements of an array if we wanted to we could print them using a [] index statement

        // this would be tediuos and repetitive so we would rather use a loop 

        // c sharp has four basic loops

        // for loop

        // foreach loop

        // while loop

        // do while loop

        // below are some examples of using each of them

        Console.WriteLine();

        Console.WriteLine("\nFor Loop: ");

        Console.WriteLine();

        for(int i = 0; i < anIntegerArray.Length; i++) 

        {           

            Console.Write(anIntegerArray[i] + " ");

        }

        Console.WriteLine();

        Console.WriteLine("\nForeach Loop: ");

        Console.WriteLine();

        foreach(char c in aCharacterArray)

        {

            Console.Write(c + " ");

        }

        Console.WriteLine();

        Console.WriteLine("\nWhile Loop: ");

        Console.WriteLine();

        int count = 0;

        while(count < anIntegerArray.Length)

        {

            Console.Write(anIntegerArray[count] + " ");

            count++;

        }

        Console.WriteLine();

        Console.WriteLine("\nDo While Loop: ");

        Console.WriteLine();

        int newcount = 0;

        do

        {

            Console.Write(aCharacterArray[newcount] + " ");

            newcount++;

        }

        while(newcount < anIntegerArray.Length - 1);

    }

}