IntroC#_loops_arrays_decimal_methods_recursion_1a

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HelloWorld
{
    class Program
    {
        static void Main(string[] args)
        {
            int age = 50;
            int colegeTest = 10 + ++age;
            age +=23;
            int test2 = 10 + 34* 8;
            char firstLetter = 'S';
            float myMoney = 2.34f;
            string name = "Stoyan";
            sbyte test = -128;
            bool isMail = true;

            object myObject = 5;

            int result = age + test;

            bool logResult = age < test;

            Console.WriteLine("Hello World! I am " + age + " years old. My name starts with " + firstLetter + "My money " + myMoney);
            Console.WriteLine("My name is " + name + test);
            Console.WriteLine("My I a mail: " + isMail);
            Console.WriteLine("Result " + result);
            Console.WriteLine("loResult " + logResult);
            Console.WriteLine("colege " + colegeTest);

           //  string readCOnsole = Console.ReadLine();
           //  Console.WriteLine("You have entered " + int.Parse(readCOnsole));

            Console.WriteLine("Please eneter your age: ");
            int userAge = int.Parse(Console.ReadLine());

            /*
            if (userAge < 20)
            {
                Console.WriteLine("You are an teenager!!!");
            }
            else if (userAge < 50 && userAge > 30) {
                Console.WriteLine("You are in the middle age");
            }
            else {
                Console.WriteLine("You are not in our age ranges");
            }
            */

            switch (userAge)
            {
                case 20:
                    Console.WriteLine("You are 20 years old");
                    break;

                default:
                    Console.WriteLine("Nothing else matches");
                    break;
            }

            Console.WriteLine(1);
            Console.WriteLine(2);
            Console.WriteLine(3);

            int i = 1;
            while (i <= 10) {
                if (i == 5) break;
                Console.WriteLine(i);
                i++;
            }

            Console.WriteLine("Please choose [1-4]:");
            Console.WriteLine("1. List all partiotions");
            Console.WriteLine("2. Create a partiotn");
            Console.WriteLine("3. Deletae a partition");
            Console.WriteLine("4. Exit");
            string choice = "";
            while (true) {
                choice = Console.ReadLine();
                if (choice == "4") {
                    break;
                }
            }

            i = 11;
            do
            {
                Console.WriteLine("do: {0}", i);
                i++;
            } while (i <= 10);

            for (i = 0; i < 10; i++) {
                if (i % 2 != 1) continue;
                Console.WriteLine("for: {0} ", i);
            }

            string[] group1a = { "Rayna", "Mimi", "Velina", "Svetlin", "Aysun", "Maria", "Geri", "Marin", "Plamen" };

            Console.WriteLine("The list of group 1a:");
            foreach (string nameGr in group1a) {
                Console.WriteLine(nameGr);
            }

            int k;
            for (i = 0, k = 10; i < 10; i++) {
                for (int j = 0; j < i; j++) {
                    Console.Write("*");
                }
                Console.WriteLine();
            }
/*          // 1)
            int[] myArray;
            myArray = new int[5];
            myArray[4] = 43;
*/
            // 2)
            // int[] myArray = { 34, 45, 56 };

            int[] myArray = new int[4] { 23, 45, 56, 78 };

            for (i = 0; i < myArray.Length; i++) {
                Console.WriteLine("myArray[{1}] = {0}", myArray[i], i);
            }

            string[,] positionsOfTheStudents = {
                   {"", "Rayna","","","Mimi","", "Velina",""},
                   {"", "Svetlin","","Aisun","Maria","", "","Geri"},
                   {"", "","","","Marin","", "Plamen",""}
            };

            for (i = 0; i < positionsOfTheStudents.GetLength(0); i++)
            {
                Console.Write("Red {0}: ", i);
                for (int j = 0; j < positionsOfTheStudents.GetLength(1); j++)
                {
                    Console.Write(" {0}", positionsOfTheStudents[i, j]);
                }
                Console.WriteLine();
            }

            int[][] jaggedArray;
            jaggedArray = new int[2][];
            jaggedArray[0] = new int[8];
            jaggedArray[1] = new int[5];

/*
            string temp = "";
            for (i = 0; i < 10; i++)
            {
                temp += "*"; // "*";
            }

            Console.WriteLine(temp);

            for (i = 0; i < 14; i++)
            {
                temp += "@"; // "*";
            }

            Console.WriteLine(temp);
*/
            Console.WriteLine(createString(2));
            Console.WriteLine(createString(20, "@"));
            Console.WriteLine(createString());

            Console.WriteLine(createString(10, "^", "Rayna", "Mimi"));

            Console.WriteLine(factorial(2));
        }

        static string createString(int strLength, string str = "*", params string[] par)
        {
            string temp = "";
            for (int i = 0; i < strLength; i++)
            {
                temp += str;
            }

            foreach (string item in par)
            {
                Console.WriteLine(item);
            }

            return temp;
        }

        static string createString() {
            return "Hhahaah";
        }

        static int factorial(int n)
        {
            if (n == 0) return 1;
            return factorial(n - 1) * n;
        }

    }
}