static void Main(string[] args)
{
Car car;
car = new Car("Red");
Console.WriteLine(car.Describe());
car = new Car("Green");
Console.WriteLine(car.Describe());
Console.ReadLine();
}
// the params modifier
// arbitrary number of params in an array
// long way to call it:
// GreetPersons(new string[] { "John", "Jane", "Tarzan" });
// better way with params keyword
// static void GreetPersons(params string[] names) { }
// GreetPersons("John", "Jane", "Tarzan");
// params keyword also makes params optional (0 params)
// can mix optional and required params
// params keyword has to come last
// static void GreetPersons(int someUnusedParameter, params string[] names)
// static:
// method should be accessible without instantiating the class (aka a class method in Ruby)
// Main is the entry point:
// first code to be executed
static void Main(string[] args)
{
// Variable
// declare variable with type car
Car car;
// new instance of it with parameter "Red"
car = new Car("Red");
Console.WriteLine(car.Describe());
// another instance of same class
car = new Car("Green");
Console.WriteLine(car.Describe());
// reads the next line of characters from the standard input stream
// returns String or null
Console.ReadLine();
// compare to Console.Read();
// reads the next character from the standard input stream
// returns Int32 or -1 if none
// this ReadLine is a trick to keep the window from closing until prompted
}
static void Main(string[] args)
{
string username = "******";
string password = "******";
Console.WriteLine("Hello " + username +", your password is :" + password);
Console.WriteLine("New Password please:");
password = Console.ReadLine();
Console.WriteLine("Hello " + username + ", your new password is :" + password);
Console.ReadLine();
Car car;
car = new Car("Red");
Console.WriteLine(car.Describe());
Console.WriteLine("The car getter method is exposed for color: " + car.Color);
car.Color = "purple";
Console.WriteLine("The car setter method is exposed for color: " + car.Color);
Car car2 = new Car("Green");
Console.WriteLine(car2.Describe());
Console.ReadLine();
GreetPersons(0);
GreetPersons(25, "John", "Jane", "Tarzan");
Console.ReadKey();
int number1;
do
{
Console.WriteLine("Please enter a number(1-10):");
number1 = int.Parse(Console.ReadLine());
if ((number1 > 0) && (number1 < 11))
Console.WriteLine("Good job!");
else
Console.WriteLine("Out of range.. boo");
} while ((number1 < 1) || (number1 > 10));
int result = AddNumbers(number1);
Console.WriteLine("Adding ?? to your number: " + result);
Console.ReadLine();
ArrayList list = new ArrayList();
list.Add("John Doe");
list.Add("Jane Doe");
list.Add("Someone Else");
foreach(string name in list)
Console.WriteLine(name);
Console.ReadLine();
//Class with Public methods
MyClass cls = new MyClass();
Console.Write("Write a number: ");
long a= Convert.ToInt64(Console.ReadLine()); // a is the number given by the user
long av = cls.volteado(a);
bool isTrue = cls.siprimo(a);
bool isavTrue = cls.siprimo(av);
Console.WriteLine("a: " + a + "av: " + av);
if (isTrue == false && isavTrue == false)
Console.WriteLine("Both original and swapped numbers are prime.");
else
Console.WriteLine("One of the numbers isnt prime.");
Console.ReadLine();
Console.WriteLine("Do you enjoy C# ? (yes/no/maybe)");
string input = Console.ReadLine();
switch(input.ToLower())
{
case "yes":
case "maybe":
Console.WriteLine("Great!");
break;
case "no":
Console.WriteLine("Too bad!");
break;
default:
Console.WriteLine("I'm sorry, I don't understand that!");
break;
}
Console.ReadLine();
}