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Eg. for loop

string completestring = "";

            string[] parts = new string[3];

            parts[0] = "hello, ";

            parts[1] = "hello again, ";

            parts[2] = "hello forever";



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

            {

                completestring = completestring + parts[i];

            }

            Console.WriteLine(completestring);

            Console.ReadLine();


Eg. while loop

int total = 0;

            int count = 0;

            int currentnumber = 1;



            while (currentnumber !=0)

            {

                //Loop will exit when user enter 0.

                Console.WriteLine("Type a decimal number : ");

                currentnumber = Convert.ToInt32(Console.ReadLine());

                total = total + currentnumber;

                count++;



                //Console.WriteLine(total);

                Console.WriteLine();

            }

            count--;



            double average = total / count;



            Console.WriteLine();

            Console.WriteLine("Average is " + average);

            Console.ReadLine();
           
eg. do while

 int total = 0;

            int count = 0;

            int currentnumber = 0;

       

         



            do

            {

                Console.WriteLine("Type a number : ");

                currentnumber = Convert.ToInt32(Console.ReadLine());

                total = total + currentnumber;

                count++;

            }

            while (currentnumber != 0);



            count--;

            double average = 0;

            average = total / count;



            Console.WriteLine("The average is " + average);

            Console.ReadLine();
           
eg. Woongyeol_choi_P453075_swap_name

// Woongyeol_choi

// P453075

// 11/08/2017

// Woongyeol_choi_P453075_swap_name



using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;



namespace Woongyeol_choi_P453075_csharp

{

    class Program

    {

        static void Main(string[] args)

        {

           

            string personone = "chris";

            string persontwo = "john";

            string tempstring = "";



            Console.WriteLine("First person : " + personone);

            Console.WriteLine("2nd person : " + persontwo);



            tempstring = personone;

            personone = persontwo;

            persontwo = tempstring;



            Console.WriteLine("First person : " + personone);

            Console.WriteLine("2nd person : " + persontwo);



            Console.ReadLine();

           



        }

    }

}

eg. Woongyeol_choi_p453075_is_chris

// Woongyeol_choi

// P453075

// 11/08/2017

// is_chris



using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;



namespace Woongyeol_choi_P453075_csharp

{

    class Program

    {

        static void Main(string[] args)

        {



            string ischris, answer;

            bool ismale;



            Console.WriteLine("please type your name : ");

            answer = Convert.ToString(Console.ReadLine());

           

            if(answer == "chris")

            {

                ismale = true;

            }



            else

            {

                ismale = false;

            }



            if (ismale == true)

            {

                Console.WriteLine("You are chris");

            }



            else

            {

                Console.WriteLine("You are not chris");

            }



            Console.ReadLine();

        }

    }

}


eg. lager_10
// Woongyeol_choi

// P453075

// 11/08/2017

// larger_10



using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;



namespace Woongyeol_choi_P453075_csharp

{

    class Program

    {

        static void Main(string[] args)

        {

            int num1, num2, num3;

            Console.WriteLine("Type num1 : ");

            num1 = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("Type num2 : ");

            num2 = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("Type num3 : ");

            num3 = Convert.ToInt32(Console.ReadLine());



            if (num1 > 10 && num2 > 10)

            {

                Console.WriteLine("num1 and num2 is larger than 10");

                if (num3>10)

                {

                    Console.WriteLine("num3 is larger than 10");

                }

                else

                {

                    Console.WriteLine("num3 is smaller than 10");

                }

            }

            Console.ReadLine();



        }

    }

}