//Programmer: Ethan Arnold

//Date: Start: April 28 End: April 28

//Project: U6A4 Times Table Generator

//Purpose: To give a times table to the size of whatever the user enters

using System;

public class Program

{

    public static void Main()

    {

        int tableSize, rowStart, columnStart, multiply; //set these variables as integer values

        //start the display

        Console.WriteLine("Times Table Generator");

        start: //if a spot in the code has the "goto start;" statement, then it will go to here

        Console.WriteLine("Please enter the size of the table:");

        tableSize = Convert.ToInt32(Console.ReadLine()); //sets the tableSize to what the user enters

        if (tableSize<=0) { //if the number the user entered is less then or equal to 0, then run this code

            Console.WriteLine("Please enter a number greater then 0");

            goto start; //if this code is ran, then go to the start where it is declared

        }

        //start the table

        Console.Write("{0,7}","x ");

        for (columnStart=1; columnStart<=tableSize; columnStart++) { //loop columnStart as 1, and if it is less then or equal to tableSize, then add 1

            Console.Write("{0,7}",columnStart); //display columnStart

        }

        Console.WriteLine();

        Console.WriteLine(new string('_',(7*tableSize)+7)); //display the table border so it is in sync with tableSize

        for (rowStart = 1; rowStart<=tableSize; rowStart++) { //loop rowStart as 1, and if it is less then or equal to tableSize, then add 1

            Console.Write("{0,7}",rowStart+"|"); //display the rowStart

            for (multiply = 1; multiply<=tableSize; multiply++) { //loop multiply as 1, and if it is less then or equal to tableSize, then add 1

                Console.Write("{0,7}",multiply*rowStart); //display the multiplied value by multiplying rowStart by multiply

            }

            Console.WriteLine(); //new line

        }

    }

}