public static void Main(string[] args)
{
Caretaker caretaker = new Caretaker();
caretaker.TypeNewLine("My name is ");
caretaker.TypeNewLine("Fernando");
caretaker.TypeNewLine("Rodrigues");
caretaker.TypeNewLine("Ferreira");
Console.WriteLine(caretaker.GetText());
Console.WriteLine();
caretaker.Undo();
caretaker.Undo();
caretaker.Undo();
Console.WriteLine(caretaker.GetText());
Console.WriteLine();
caretaker.Undo();
Console.WriteLine(caretaker.GetText());
Console.WriteLine();
Console.ReadKey();
}
static void Main(string[] args)
{
// Client code.
Originator originator = new Originator("Super-duper-super-puper-super.");
Caretaker caretaker = new Caretaker(originator);
caretaker.Backup();
originator.DoSomething();
caretaker.Backup();
originator.DoSomething();
caretaker.Backup();
originator.DoSomething();
Console.WriteLine();
caretaker.ShowHistory();
Console.WriteLine("\nClient: Now, let's rollback!\n");
caretaker.Undo();
Console.WriteLine("\n\nClient: Once more!\n");
caretaker.Undo();
Console.WriteLine();
}
public static void Execute()
{
var person = new Person()
{
Name = "Adam Adamski",
BirthDate = new DateTime(1989, 12, 12)
};
var caretaker = new Caretaker <Person>(person);
Console.WriteLine($"Name: {person.Name}");
caretaker.Save();
person.Name = "Ewa Adamska";
Console.WriteLine($"Name: {person.Name}");
caretaker.Save();
person.Name = "Ewa Ewowska";
Console.WriteLine($"Name: {person.Name}");
while (true)
{
caretaker.Save();
}
caretaker.Undo();
Console.WriteLine($"Name: {person.Name}");
caretaker.Undo();
Console.WriteLine($"Name: {person.Name}");
caretaker.Undo();
Console.WriteLine($"Name: {person.Name}");
}
public static void Mein()
{
var originator = new Originator("Hello world!");
var caretaker = new Caretaker(originator);
caretaker.Backup();
originator.DoSomething();
caretaker.Backup();
originator.DoSomething();
caretaker.Backup();
originator.DoSomething();
Console.WriteLine();
caretaker.ShowHistory();
// Undo the changes.
caretaker.Undo();
caretaker.ShowHistory();
caretaker.Undo();
caretaker.Undo();
}
