static void Main(string[] args) { try { //Use Person class, create a new object and //call the introduce method Person john = new Person(); john.FirstName = "John"; john.LastName = "Smith"; john.Introduce(); //Use Calc Class - create a new object and pass value Calculator calculator = new Calculator(); var result = calculator.add(2, 4); Console.WriteLine(result); //Array Example int[] numbers = new int[3]; numbers[0] = 1; Console.WriteLine(numbers[0]); Console.WriteLine(numbers[1]); Console.WriteLine(numbers[2]); //Bool Array bool[] flags = new bool[3]; flags[0] = true; Console.WriteLine(flags[0]); Console.WriteLine(flags[1]); Console.WriteLine(flags[2]); //String Usage Example var firstName = "Tanvir"; var lastName = "Alam"; //Using string.Format var fullName = string.Format("This is my full name {0} {1}", firstName, lastName); Console.WriteLine(fullName); //Using string.Join var names = new string[3] { "John", "Jack", "Mary" }; var formattedNames = string.Join(",", names); Console.WriteLine(formattedNames); //Verbatim strings var text = @"Hello this is a path C:Windows\System32\Public and look at this other path c:\users\tan"; Console.WriteLine(text); //Enum Example Console.WriteLine("Enum Example Below"); // Add enum at the top because it is a C# type } catch (Exception) { Console.WriteLine("The data was too big"); } }