using System;

public class Program

{

    public static void Main()

    {

        //String & foreach loop

        string strItemCode = "sony-dvd-062019";

        string[] strInfoArray = strItemCode.Split('-');

        //[Code] Use foreach to print out each element.

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

        //String Skills

        //Remove "not " from the following string and print it out (DO NOT hard code the index)

        string strText = "That is not a chair.";

        string strRemovedString = "not ";

        //[Code] Use IndexOf and Length to remove "not "

        Console.WriteLine(strText);

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

        //Advanced Loop

        //Write a program to keep asking for a number until a user enter zero.

        //At the end, print the sum of all entered numbers.

        int iSum = 0;

​

        Console.WriteLine("Sum: {0}",iSum);

        //Print *

        for(int i = 1; i <= 5; i++)

        {

            for (int j = 1; j <=i; j++)

            {

                Console.Write("*");

            }

            Console.WriteLine("");

        }

    }

}