using System;

namespace Demo
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");

            int number = 4;
            double myDecimalValue = 0.56;
            string myString;
            bool myBool;
            string name;
            int enteredNumber;

            number = 3;
            myDecimalValue = 3.47;
            myString = "Hello";
            myBool = true;

            Console.WriteLine("Enter name: ");
            name = Console.ReadLine();  // Read text until you type enter
            Console.WriteLine("The name was {0}", name);

            Console.WriteLine("Enter number:");
            enteredNumber = int.Parse(Console.ReadLine());
            Console.WriteLine("The number was {0}", enteredNumber);

            Console.WriteLine("The number was {0} and the name {1}", enteredNumber, name);

            Console.Write(">");
            Console.Write(">");
            Console.WriteLine();

            // Branch statements
            int choice;
            Console.WriteLine("Enter number:");
            choice = int.Parse(Console.ReadLine());

            if (choice > 10)
            {
                Console.WriteLine("Choice > 10");
            }
            else
            {
                Console.WriteLine("Choice <= 10");
            }

            Random rnd = new Random();
            choice = rnd.Next(1, 5);

            if (choice == 1)
            {
                Console.Write("Elephant");
            }
            else if (choice == 2)
            {

            }
            // Choice is 2 display "Tiger"
            // Choice is 3 display "Cat"

            switch (choice)
            {
                case 1:
                    Console.WriteLine("Elephant");
                    break;
                case 2:
                    Console.WriteLine("Tiger");
                    break;
            }

            // Counting loop
            for (int i = 0; i < 10; i++)
            {
                Console.WriteLine("Loop count {0}", i);
            }

            // Conditional loop
            choice = 1;
            while (choice != 0)
            {
                Console.WriteLine("Looping choice was {0}", choice);
                Console.WriteLine("Enter 0 to exit");
                choice = int.Parse(Console.ReadLine());
            }

            // 3 lives...use loop
            // guess random number between 1 and 10
            // Display higher if number within guess+2 -- guess
            // Display lower if number within guess -- guess-2
            // Display win if they guess correctly
            // Display lose if they run of lives

            int[] numbers = new int[5];      // Size of the array is 5
            string[] text = new string[3];

            numbers[0] = 4;    // First element is at index = 0
            numbers[1] = 9;
            numbers[2] = 66;
            numbers[3] = 43;
            numbers[4] = 6;    // Last element is at array size - 1 = 4

            text[0] = "Hello";
            text[1] = "Goodbye!";
            text[2] = "Hi!!";

            DisplayNumber(4);   // Call a method inside the class

            int result = AddNumbers(4, 5);
            DisplayNumber(result);

            result = AddArrayNumbers(numbers); // Pass array to method
            DisplayNumber(result);
 
            Console.ReadKey();  // Pause
        }

        static void DisplayNumber(int number)
        {
            Console.WriteLine(number);
        }

        static int AddNumbers(int number1, int number2)
        {
            return number1 + number2;
        }

        static int AddArrayNumbers(int[] numbers)
        {
            int result = 0;
            int arraySize = numbers.Length;

            // Add the numbers
            for (int index = 0; index < arraySize; index++)
            {
                result += numbers[index];
            }

            return result;
        }

    }
}