IntroC#_loops_arrays_decimal_methods_recursion_2b

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

namespace HelloWorld2b
{
    class Program
    {
        static void Main(string[] args)
        {
            int age = 214;
            char firstLetter = 'S';
            float money = 2.54f;
            string name = "Stoyan";
            bool isMail = false;
            object myObject = 5;
            int nextYear = age + 1;
            int remainder = 10; // % 3;
            remainder %= 3;

            bool test = 4 * 5 + 3 < 6 * 8 - 3;

            Console.WriteLine("Hello World!!!");
            Console.WriteLine("Max Int : " + age);
            Console.WriteLine("The first letter is: " + firstLetter);
            Console.WriteLine("I have in my pocket : " + money);
            Console.WriteLine("My name is : " + name);
            Console.WriteLine("Next year I will be: " + nextYear);
            Console.WriteLine(3 == 3);
            Console.WriteLine(remainder);

            Console.WriteLine("Please enter your age");
            string myAge = Console.ReadLine();
            int myAgeInt = int.Parse(myAge);
            Console.WriteLine("You told me. Your age is: {0}", ++myAgeInt);

            if (myAgeInt < 20)
            {
                Console.WriteLine("You are a teenager!");
            }
            else if (myAgeInt > 20 && myAgeInt < 30)
            {
                Console.WriteLine("It is time for fun!!!");
            }
            else {
                Console.WriteLine("You are aging too fast!!");
            }

            switch (myAgeInt) {
                case 20:
                    Console.WriteLine("You are {0} years old", myAgeInt);
                    break;
                case 30:
                    Console.WriteLine("You are {0} years old", myAgeInt);
                    break;
                default :
                    Console.WriteLine("I don't know  what to say.");
                    break;
            }


            Console.WriteLine(1);
            Console.WriteLine(2);
            Console.WriteLine(3);
            // ...
            Console.WriteLine("1\n2\n3\n");

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

            // break
            Console.WriteLine("Please choose:");
            Console.WriteLine("1. List the partitions");
            Console.WriteLine("2. Create a Partionion");
            Console.WriteLine("3. Delete Partition");
            Console.WriteLine("4. Exit");
            string choice;
            while (true)
            {
                choice = Console.ReadLine();
                if (int.Parse(choice) == 4) break;
                Console.WriteLine("Your choice was:" + choice);
            }


            // do-while
            i = 10;

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


            // for
            for (int j = 0; j < 10; j++)
            {
                if (j % 2 != 1)
                {
                    continue;
                }

                // if (j % 2 == 1) continue;

                Console.WriteLine("for: {0}", j);
            }

            string[] group2b = { "Swetla", "Lyubo", "Krasi", "Borko", "Blago", "Miryana", "Niki", "Wqra", "Yoana" };

            foreach (string stname in group2b)
            {
                Console.WriteLine("Name: {0}", stname);
            }

            for (i = 0; i < 10; i++)
            {
                for (int j = 0; j < i; j++)
                {
                    Console.Write("*");
                }
                Console.Write("\n");
            }

            // array
            /* 1)
            int[] myArray;
            myArray = new int[5];
            myArray[3] = 45;
            myArray[0] = 1;
            */
            // 2)  int[] myArray = { 12, 34, 54, 67 };

            // 3)
            int[] myArray = new int[3] { 12, 34, 54 };


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


            string[,] positionsOfTheStudents = {
                {"", "Vyara","","","Swetla","Lyubo","Krasi","Borko"},
                {"Yoana", "","","","","","","Blago"},
                {"", "","","","Niki","","","Miryana"}
            };

            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[,] test23 = {
                {12,34},
                {23,45}
            };
            */

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

            Console.WriteLine(createString(10));
            Console.WriteLine(createString(4));
            Console.WriteLine(createString(11, "+"));
            Console.WriteLine(createString(11, "+", "Stoyan", "Yoana", "Vqra"));

            Console.WriteLine(factorial(4));
        }

        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 "Hahha";
        }

        static int factorial(int n) {
            if (n == 0) return 1;
            // n--;
            return factorial(n - 1) * n; // --n changes the value of n
        }

    }

}