static void Main()
{
Duck littleDuck = new RubberDuck();
Duck woodenDuck = new WoodenDuck();
Duck simleDuck = new SimpleDuck();
Duck fakeDuck = new FakeDuck();
Console.WriteLine("1st duck");
littleDuck.PerformFly();
littleDuck.PerformQuack();
littleDuck.Swim();
Console.WriteLine("\n");
Console.WriteLine("2nd duck");
woodenDuck.PerformFly();
woodenDuck.PerformQuack();
woodenDuck.Swim();
Console.WriteLine("\n");
Console.WriteLine("3rd duck");
simleDuck.PerformFly();
simleDuck.PerformQuack();
simleDuck.Swim();
Console.WriteLine("\n");
Console.WriteLine("4th duck");
fakeDuck.PerformFly();
fakeDuck.PerformQuack();
fakeDuck.Swim();
Console.ReadKey();
}
private static void Main()
{
var mallardDuck = new MallardDuck();
mallardDuck.Display();
mallardDuck.PerformQuack();
mallardDuck.Swim();
mallardDuck.PerformFly();
Console.WriteLine();
var redheadDuck = new RedheadDuck();
redheadDuck.Display();
redheadDuck.PerformQuack();
redheadDuck.Swim();
redheadDuck.PerformFly();
Console.WriteLine();
var rubberDuck = new RubberDuck();
rubberDuck.Display();
rubberDuck.PerformQuack();
rubberDuck.Swim();
rubberDuck.PerformFly();
Console.WriteLine();
var decoyDuck = new DecoyDuck();
decoyDuck.Display();
decoyDuck.Swim();
Console.WriteLine();
Console.Write("Press Enter to exit ...");
Console.ReadLine();
}
public void FakeDucksCantFly()
{
RubberDuck rd = new RubberDuck();
DecoyDuck dd = new DecoyDuck();
rd.PerformFly();
dd.PerformFly();
}
internal static void ExecuteStrategy()
{
//Intent
// • Define a family of algorithms, encapsulate each one, and make them interchangeable.Strategy lets the algorithm vary independently from
// the clients that use it.
// • Capture the abstraction in an interface, bury implementation details in derived classes.
Strategy.Duck greenDuck = new GreenDuck();
greenDuck.PerformFly();
greenDuck.PerformQuack();
Strategy.Duck rubberDuck = new RubberDuck();
rubberDuck.PerformFly();
rubberDuck.PerformQuack();
rubberDuck.SetFlyBehaviour(new FlyWithRockets()); // Changing behaviour at runtime !
rubberDuck.PerformFly();
}
public void TestRubberDuck()
{
HeadFirstDesignPatterns.Strategy.Duck.Duck RubberDuck = new RubberDuck();
Assert.AreEqual("Squeak", RubberDuck.PerformQuack());
Assert.AreEqual("I can't fly.", RubberDuck.PerformFly());
}
public void RubberDuck_ShouldFlyRocketPowered_WhenChangeFlyRocketPowered()
{
//Arrange
Duck rubber = new RubberDuck();
//Act
rubber.FlyBehavior = new FlyRocketPowered();
var fly = rubber.PerformFly();
//Assert
fly.Should().Be("I'm flying with a rocket!");
}
static void Main(string[] args)
{
RedheadDuck duckduck = new RedheadDuck();
duckduck.PerformFly();
duckduck.PerformQuack();
Duck duck = new RubberDuck();
duck.PerformFly();
duck.PerformQuack();
duck.QuackBehaviour = new QuackOne();
duck.PerformQuack();
}
public void RubberDuck_ShouldCantFlyAndSqueakAndDisplay()
{
//Arrange
Duck rubber = new RubberDuck();
//Act
var fly = rubber.PerformFly();
var quack = rubber.PerformQuack();
var display = rubber.Display();
//Assert
fly.Should().Be("I can't fly.");
quack.Should().Be("Squeak");
display.Should().Be("I'm a Rubber duck");
}
static void Main()
{
Duck RubberDuck = new RubberDuck();
RubberDuck.PerformFly();
RubberDuck.PerformQuack();
RubberDuck.Display();
Duck FredTheEagle = new Eagle();
FredTheEagle.PerformFly();
FredTheEagle.PerformQuack();
FredTheEagle.Display();
Console.ReadKey();
}
static void Main(string[] args)
{
Bird christianBird = new RubberDuck();
christianBird.Display();
christianBird.SetFlyBehavior(new YesFly());
christianBird.PerformFly();
christianBird.PerformQuack();
christianBird.Swim();
Bird mortyBird = new Swallow();
mortyBird.Display();
mortyBird.PerformFly();
mortyBird.PerformQuack();
mortyBird.Swim();
}
private static void RunDucks()
{
Duck duck = null;
bool exitApplication = false;
do
{
Console.WriteLine("What do you want to see?\n1)DecoyDuck\n2)MallardDuck\n3)RubberDuck\nanykey to exit");
Console.WriteLine(string.Empty);
var response = Console.ReadLine();
switch (response)
{
case "1":
duck = new DecoyDuck();
break;
case "2":
duck = new MallardDuck();
break;
case "3":
duck = new RubberDuck();
break;
default:
exitApplication = true;
break;
}
if (!exitApplication)
{
duck.Display();
duck.PerformFly();
duck.PerformQuack();
}
Console.WriteLine(string.Empty);
}while(!exitApplication);
}
static void Main(string[] args)
{
var mallardDuck = new MallardDuck();
mallardDuck.QuackBehavior = new QuackAsNormal();
mallardDuck.FlyBehavior = new FlyWithWings();
Console.WriteLine($"Mallard duck {new string('-', 50)}");
mallardDuck.Swim();
mallardDuck.PerformQuack();
mallardDuck.PerformFly();
var redheadDuck = new RedheadDuck();
redheadDuck.QuackBehavior = new QuackAsNormal();
redheadDuck.FlyBehavior = new FlyWithWings();
Console.WriteLine($"Redhead duck {new string('-', 50)}");
redheadDuck.Swim();
redheadDuck.PerformQuack();
redheadDuck.PerformFly();
var rubberDuck = new RubberDuck();
rubberDuck.QuackBehavior = new Sqeak();
rubberDuck.FlyBehavior = new FlyNoWay();
Console.WriteLine($"Rubber duck {new string('-', 50)}");
rubberDuck.Swim();
rubberDuck.PerformQuack();
rubberDuck.PerformFly();
var decoyDuck = new DecoyDuck();
decoyDuck.QuackBehavior = new Mute();
decoyDuck.FlyBehavior = new FlyNoWay();
Console.WriteLine($"Decoy duck {new string('-', 50)}");
decoyDuck.Swim();
decoyDuck.PerformQuack();
decoyDuck.PerformFly();
}
static void Main(string[] args)
{
Console.WriteLine("##### 例子1 #####");
// 无折扣.
DiscountContext c1 = new DiscountContext(new NoDiscountStrategy());
// 每本1元.
DiscountContext c2 = new DiscountContext(new FlatRateStrategy()
{
OneCopyDiscount = 1
});
// 总金额 10%
DiscountContext c3 = new DiscountContext(new PercentageStrategy()
{
Percent = 0.1M
});
Console.WriteLine(c1.GetBookDiscount(100, 10));
Console.WriteLine(c2.GetBookDiscount(100, 10));
Console.WriteLine(c3.GetBookDiscount(100, 10));
Console.WriteLine("##### 例子2 #####");
MallardDuck mallardDuck = new MallardDuck();
RedheadDuck redheadDuck = new RedheadDuck();
RubberDuck rubberDuck = new RubberDuck();
Console.WriteLine(mallardDuck.Display() + " # " + mallardDuck.PerformFly().ToString() + " # " + mallardDuck.PerformQuack().ToString());
Console.WriteLine(redheadDuck.Display() + " # " + redheadDuck.PerformFly().ToString() + " # " + redheadDuck.PerformQuack().ToString());
Console.WriteLine(rubberDuck.Display() + " # " + rubberDuck.PerformFly().ToString() + " # " + rubberDuck.PerformQuack().ToString());
Console.ReadLine();
}
public void RubberDuck_Should_Not_Fly()
{
var rubberDuck = new RubberDuck();
Assert.Equal(String.Empty, rubberDuck.PerformFly());
}
static void Main(string[] args)
{
TestVirtual testVirtual = new TestVirtual();
Console.WriteLine(testVirtual.resultA); //using method from overrride
Console.WriteLine(testVirtual.resultB); //using method from base class
Console.WriteLine(testVirtual.add(1, 2)); //using method from overrride
Console.WriteLine(testVirtual.substract(9, 1)); //using method from base class
Console.WriteLine();
//======================================================================================
SealMethod sealMethod = new SealMethod();
Console.WriteLine(sealMethod.add(1, 1));
Console.WriteLine(sealMethod.substract(2, 2));
Console.WriteLine(sealMethod.multipy(2, 2));
Console.WriteLine();
//======================================================================================
ProtectBase protectBase = new ProtectBase();
TestProtected testProtected = new TestProtected();
// below will have complier error as "add" method can only be used inside TestProtected
//Console.WriteLine(TestProtected.add(4, 5));
Console.WriteLine();
//======================================================================================
// below will have compier error - abstract can't be instantiate
//AbstractBase ab = new AbstractBase();
TestAbstract testAb = new TestAbstract();
Console.WriteLine(testAb.add(3, 8));
Console.WriteLine();
//======================================================================================
Console.WriteLine("---- test order system ----");
Order order = new Order {
Id = 1, FirstName = "Tan", Email = "*****@*****.**", Price = 10.50M
};
OrderingFactory factory = new OrderingFactory();
IOrderProcess orderA = factory.GetOrderSupplier("A");
orderA.MakeOrder(order);
Console.WriteLine("");
IOrderProcess orderB = factory.GetOrderSupplier("B");
orderB.MakeOrder(order);
Console.WriteLine("");
Console.WriteLine("++++++++++++++++++++++++++++++++++++++++++++++++++++");
Console.WriteLine("");
Console.WriteLine(Multi10000(1, 1));
Console.WriteLine();
//======================================================================================
IStore store = new Document();
ICompress compress = new Document();
store.Read();
store.Write();
compress.Compress();
compress.Decompress();
using (SimpleClass simple = new SimpleClass())
{
Console.WriteLine(simple.returnA());
}
Console.WriteLine();
//======================================================================================
Duck d1 = new DecoyDuck();
d1.Display();
d1.PerformFly();
d1.PerformQuack();
Duck d2 = new RubberDuck();
d2.Display();
d2.PerformFly();
d2.PerformQuack();
Console.WriteLine();
//======================================================================================
/*
* WeatherData weatherData = new WeatherData();
*
* CurrentConditionsDisplay currDisplay = new CurrentConditionsDisplay(weatherData);
* ForecastDisplay foreDisplay = new ForecastDisplay(weatherData);
*
* weatherData.setMeasurements(80, 65, 30.4f);
*/
Console.WriteLine();
//======================================================================================
WeatherTracker provider = new WeatherTracker();
CurrentConditionsDisplay currDisplay = new CurrentConditionsDisplay(provider);
ForecastDisplay foreDisplay = new ForecastDisplay(provider);
provider.UpdateWeather(new WeatherData(80, 65, 30.4f));
Console.WriteLine();
//======================================================================================
BeverageBase beverage = new Decaf();
Console.WriteLine(beverage.Description
+ " $" + beverage.cost());
BeverageBase beverage2 = new DarkRoast();
beverage2 = new Milk(beverage2);
beverage2 = new Mocha(beverage2);
Console.WriteLine(beverage2.Description
+ " $" + beverage2.cost());
Console.WriteLine();
//======================================================================================
Console.WriteLine(Singleton.Instant.getTest());
Console.WriteLine(Singleton.Instant.getTest());
Console.WriteLine(Singleton.Instant.getTest());
Console.WriteLine();
//======================================================================================
Booking booking = new Booking {
BookingId = 1, SupplierCode = "GTA", FirstName = "Tan", LastName = "Tang", TotalAmount = (decimal)299.99
};
ProcessBooking bookingProcess = new ProcessBooking(booking);
bookingProcess.Initial();
Console.WriteLine(" Booking State = {0}, Status = {1}", booking.State.ToString(), booking.Status);
bookingProcess.PreAuthorisation();
Console.WriteLine(" Booking State = {0}, Status = {1}", booking.State.ToString(), booking.Status);
bookingProcess.MakeBooking();
Console.WriteLine(" Booking State = {0}, Status = {1}", booking.State.ToString(), booking.Status);
bookingProcess.MakePayment();
Console.WriteLine(" Booking State = {0}, Status = {1}", booking.State.ToString(), booking.Status);
bookingProcess.FinaliseBooking();
Console.WriteLine(" Booking State = {0}, Status = {1}", booking.State.ToString(), booking.Status);
Console.Read();
}