public static void Main()
{
Person p1 = new Person();
p1.age = 42;
p1.birthDate = Convert.ToDateTime("1977-01-01");
p1.name = "Jack";
p1.idInfo = new IdInfo(1414);
// Perform a shallow copy of p1 and assign it to p2
Person p2 = p1.ShallowCopy();
// Make a deep copy of p1 and assign it to p3
Person p3 = p1.ShallowCopy();
// Display values of p1, p2 and p3.
Console.WriteLine("Original values of p1, p2, p3:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values: ");
DisplayValues(p2);
Console.WriteLine(" p3 instance values: ");
DisplayValues(p3);
// Change the value of p1 properties and display the values of p1, p2 and p3
p1.age = 32;
p1.birthDate = Convert.ToDateTime("1900-01-01");
p1.name = "Frank";
p1.idInfo.idNumber = 7878;
Console.WriteLine("\nValues of p1, p2, and p3 after changes to p1: ");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values (reference values have changed): ");
DisplayValues(p2);
Console.WriteLine(" p3 instance values (everything was kept the same): ");
DisplayValues(p3);
static void Main(string[] args)
{
Person p1 = new Person();
p1.Age = 24;
p1.BirthDate = Convert.ToDateTime("1995-01-20");
p1.Name = "Jovan Petkoski";
p1.Id = new IdInfo(23);
// Perform a shallow copy of p1 and assign it to p2.
Person p2 = p1.ShallowCopy();
// Make a deep copy of p1 and assign it to p3.
Person p3 = p1.DeepCopy();
// Display values of p1, p2 and p3.
Console.WriteLine("Original values of p1, p2, p3:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values:");
DisplayValues(p2);
Console.WriteLine(" p3 instance values:");
DisplayValues(p3);
// Change the value of p1 properties and display the values of p1, p2 and p3.
p1.Age = 34;
p1.BirthDate = Convert.ToDateTime("2005-02-22");
p1.Name = "Frank";
p1.Id.IdNumber = 33;
Console.WriteLine("\nValues of p1, p2 and p3 after changes to p1:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values (reference values have changed):");
DisplayValues(p2);
Console.WriteLine(" p3 instance values (everything was kept the same):");
DisplayValues(p3);
// Shallow copy issue:
Console.WriteLine();
Console.WriteLine();
var john = new Person {
Id = new IdInfo(1),
Name = "John Smith",
Age = 18,
BirthDate = new DateTime(2000, 05, 25)
};
var jane = john.ShallowCopy();
jane.Name = "Jane Smith"; //John's name DID NOT change (good)
jane.Age = 28; //Same here (good)
jane.BirthDate = new DateTime(2005, 06, 26); //Same here (good)
jane.Id.IdNumber = 2; //John's Id changed (bad)
DisplayValues(john);
DisplayValues(jane);
Console.Read();
}
static void Main(string[] args)
{
Person person1 = new Person();
person1.Age = 18;
person1.Gender = 'M';
person1.Fullname = new FullName {
FirstName = "Jie1", LastName = "Chen"
};
Console.WriteLine(person1.ToString());
Console.WriteLine();
Person person2 = person1.ShallowCopy();
person1.Age = 28;
person1.Fullname = new FullName {
FirstName = "Jie11", LastName = "Chen"
};
Console.WriteLine(person1.ToString());
Console.WriteLine(person2.ToString());
Console.WriteLine();
Person person3 = person1.DeepCopy();
person1.Age = 38;
person1.Fullname = new FullName {
FirstName = "Jie111", LastName = "Chen"
};
Console.WriteLine(person1.ToString());
Console.WriteLine(person2.ToString());
Console.WriteLine(person3.ToString());
}
static void Main(string[] args)
{
var p1 = new Person();
p1.Name = "p1";
p1.Prototype = new Prototype(1);
// shallow copy
var p2 = p1.ShallowCopy();
// deep copy
var p3 = p1.DeepCopy();
System.Console.WriteLine($"name p1 p2 p3");
System.Console.WriteLine($" {p1.Name} {p2.Name} {p3.Name}");
System.Console.WriteLine($"protoId p1 p2 p3");
System.Console.WriteLine($" {p1.Prototype.Id} {p2.Prototype.Id} {p3.Prototype.Id}");
// change p1
System.Console.WriteLine("change p1 name to p5");
p1.Name = "p5";
System.Console.WriteLine($"name p1 p2 p3");
System.Console.WriteLine($" {p1.Name} {p2.Name} {p3.Name}");
System.Console.WriteLine($"protoId p1 p2 p3");
System.Console.WriteLine($" {p1.Prototype.Id} {p2.Prototype.Id} {p3.Prototype.Id}");
// change p1.Prototype.Id
System.Console.WriteLine("change p1.Prototype.Id to 5");
p1.Prototype.Id = 5;
System.Console.WriteLine($"name p1 p2 p3");
System.Console.WriteLine($" {p1.Name} {p2.Name} {p3.Name}");
System.Console.WriteLine($"protoId p1 p2 p3");
System.Console.WriteLine($" {p1.Prototype.Id} {p2.Prototype.Id} {p3.Prototype.Id}");
}
static void Main(string[] args)
{
Person p1 = new Person();
p1.Age = 42;
p1.BirthDate = Convert.ToDateTime("1977-01-01");
p1.Name = "Jack Daniels";
p1.IdInfo = new IdInfo(666);
Person p2 = p1.ShallowCopy();
Person p3 = p1.DeepCopy();
Console.WriteLine("Original values of p1, p2, p3:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values:");
DisplayValues(p2);
Console.WriteLine(" p3 instance values:");
DisplayValues(p3);
p1.Age = 32;
p1.BirthDate = Convert.ToDateTime("1900-01-01");
p1.Name = "Frank";
p1.IdInfo.IdNumber = 7878;
Console.WriteLine("\nValues of p1, p2 and p3 after changes to p1:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values (reference values have changed):");
DisplayValues(p2);
Console.WriteLine(" p3 instance values (everything was kept the same):");
DisplayValues(p3);
}
private static void TestShallowCopy()
{
Person p1 = new Person();
p1.Age = 42;
p1.Name = "Jack Daniels";
p1.IdInfo = new IdInfo(666);
Person p2 = p1.ShallowCopy();
Console.Clear();
Console.WriteLine("TestShallowCopy");
Console.WriteLine("Original values of p1, p2");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values:");
DisplayValues(p2);
p1.Age = 32;
p1.Name = "Frank";
p1.IdInfo.IdNumber = 7878;
Console.WriteLine("\nValues of p1 and p2 after changes to p1:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values:");
DisplayValues(p2);
Wait();
}
private static void Main()
{
var p1 = new Person
{
Age = 42,
BirthDate = Convert.ToDateTime("1977-01-01"),
Name = "Jack Daniels",
IdInfo = new IdInfo(666)
};
// Выполнить поверхностное копирование p1 и присвоить её p2.
var p2 = p1.ShallowCopy();
// Сделать глубокую копию p1 и присвоить её p3.
var p3 = p1.DeepCopy();
// Сделать копию через метод Clone интерфейса IClonable
var p4 = (Person)p1.Clone();
// Вывести значения p1, p2 и p3 и p4.
Console.WriteLine("Original values of p1, p2, p3:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values:");
DisplayValues(p2);
Console.WriteLine(" p3 instance values:");
DisplayValues(p3);
Console.WriteLine(" p4 instance values:");
DisplayValues(p4);
// Изменить значение свойств p1 и отобразить значения p1, p2 и p3 и p4.
p1.Age = 32;
p1.BirthDate = Convert.ToDateTime("1900-01-01");
p1.Name = "Frank";
p1.IdInfo.IdNumber = 7878;
Console.WriteLine("\nValues of p1, p2 and p3 after changes to p1:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values (reference values have changed):");
DisplayValues(p2);
Console.WriteLine(" p3 instance values (everything was kept the same):");
DisplayValues(p3);
Console.WriteLine(" p4 instance values (everything was kept the same):");
DisplayValues(p4);
}
static void Main(string[] args)
{
var obj = new Person()
{
Age = 19,
BirthDate = Convert.ToDateTime("1998-02-01"),
Name = "Denchickobraz",
IdInfo = new IdInfo(1)
};
var newObj1 = obj.ShallowCopy();
var newObj2 = obj.DeepCopy();
obj.IdInfo.IdNumber = 22;
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("Prototype design pattern example");
Console.WriteLine("Prototype is a creational design pattern that allows cloning objects, even complex ones, without coupling to their specific classes.");
Console.WriteLine();
Person person1 = new Person
{
Age = 43,
BirthDate = Convert.ToDateTime("1976-01-01"),
Name = "Stuart Shepherd",
IdInfo = new IdInfo(666)
};
// perform a shallow copy of person1 and assign it to person2.
Person person2 = person1.ShallowCopy();
// make a deep copy of person1 and assign it to person3.
Person person3 = person1.DeepCopy();
// display values of person1, person2 and p3.
Console.WriteLine("Original values of person1, person2, person3:");
Console.WriteLine(" person1 instance values: ");
DisplayValues(person1);
Console.WriteLine(" person2 instance values:");
DisplayValues(person2);
Console.WriteLine(" person3 instance values:");
DisplayValues(person3);
// change the value of person1 properties and display the values of person1, person2 and person3.
person1.Age = 20;
person1.BirthDate = Convert.ToDateTime("2000-01-01");
person1.Name = "John";
person1.IdInfo.IdNumber = 7878;
Console.WriteLine("\nValues of person1, person2 and person3 after changes to person1:");
Console.WriteLine(" person1 instance values: ");
DisplayValues(person1);
Console.WriteLine(" person2 instance values (reference values have changed):");
DisplayValues(person2);
Console.WriteLine(" person3 instance values (everything was kept the same):");
DisplayValues(person3);
}
static void Main(string[] args)
{
Person p1 = new Person();
p1.Age = 42;
p1.BirthDate = Convert.ToDateTime("1977-01-01");
p1.Name = "Jack";
p1.SecondName = "Daniels";
p1.IdInfo = new IdInfo(666);
p1.Address = new Address("Kings Road", 15);
Person p2 = p1.ShallowCopy();
Person p3 = (Person)p1.Clone();
Console.WriteLine("Original values of p1, p2, p3:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values:");
DisplayValues(p2);
Console.WriteLine(" p3 instance values:");
DisplayValues(p3);
p1.Age = 32;
p1.BirthDate = Convert.ToDateTime("1900-01-01");
p1.Name = "Frank";
p1.SecondName = "Simpson";
p1.IdInfo.IdNumber = 7878;
p1.Address = new Address("Wall street", 10);
Console.WriteLine("\nValues of p1, p2 and p3 after changes to p1:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values (reference values have changed):");
DisplayValues(p2);
Console.WriteLine(" p3 instance values (everything was kept the same):");
DisplayValues(p3);
Console.ReadLine();
}
static void Main(string[] args)
{
//Create an instance of person and assign values to it fields
Person p1 = new Person();
p1.Age = 22;
p1.IdInfo = new IdInfo(3242);
//perfoem a shallow copy of p1 and assign it to p2
Person p2 = p1.ShallowCopy();
//Display Values of p1 & p2
Console.WriteLine("Original values of p1 & p2");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values: ");
DisplayValues(p2);
p1.Age = 25;
p1.IdInfo = new IdInfo(1121);
//Display Values of p1 & p2
Console.WriteLine("\nValues of p1 & p2 after changed to p1:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values: ");
DisplayValues(p2);
Person p3 = p1.DeepCopy();
p1.Age = 28;
p1.IdInfo = new IdInfo(1234);
//Display Values of p1 & p2
Console.WriteLine("values of p1 & p3 after changes to p1:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values: ");
DisplayValues(p3);
Console.ReadKey();
}
static void Main(string[] args)
{
//create inital object
Person p1 = new Person();
p1.Age = 42;
p1.BirthDate = Convert.ToDateTime("1977-01-01");
p1.Name = "Jack Daniels";
p1.IdInfo = new IdInfo(666);
// Perform a shallow copy of p1 and assign it to p2.
Person shallowCoppyOfP1 = p1.ShallowCopy();
// Make a deep copy of p1 and assign it to p3.
Person deepCopyOfP1 = p1.DeepCopy();
// Display values of p1, p2 and p3.
Console.WriteLine("Original values of p1, p2, p3:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" shallow copy of p1 instance values:");
DisplayValues(shallowCoppyOfP1);
Console.WriteLine(" deep copy of p1 instance values:");
DisplayValues(deepCopyOfP1);
// Change the value of p1 properties and display the values of p1,
// p2 and p3.
p1.Age = 32;
p1.BirthDate = Convert.ToDateTime("1900-01-01");
p1.Name = "Frank";
p1.IdInfo.IdNumber = 7878;
Console.WriteLine("\nValues of p1, p2 and p3 after changes to p1:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" shallow copy of p1 instance values (reference values have changed):");
DisplayValues(shallowCoppyOfP1);
Console.WriteLine(" deep copy of p1 instance values (everything was kept the same):");
DisplayValues(deepCopyOfP1);
}
static void Main(string[] args)
{
var p1 = new Person("Andrey", 17, new Dog("Tuzik", 3));
p1.Print();
var p2 = p1.ShallowCopy();
var p3 = p1.DeepCopy();
p1.Dog.Name = "123";
Console.WriteLine("Shallow copy doesn't properly copy inner reference types (except String)!");
p2.Print();
Console.WriteLine("Deep copy properly copy inner reference types.");
p3.Print();
Console.WriteLine();
Console.WriteLine("Prototype registry usage");
Console.WriteLine();
var registry = new PersonRegistry();
registry.Add(1, new Person("Alex", 30, new Dog("Ralf", 5)));
registry.Add(2, new Person("Dasha", 20, new Dog("Barni", 4)));
registry.Add(3, new Person("Egor", 15, new Dog("Bobik", 8)));
var p4 = registry.GetById(1);
var p5 = registry.GetById(1);
p5.Print();
p4.Dog.Name = "something else";
Console.WriteLine("Clones from registry are not connected to each other.");
p5.Print();
}
static void Main(string[] args)
{
Person p1 = new Person();
p1.Age = 42;
p1.BirthDate = Convert.ToDateTime("1977-01-01");
p1.Name = "Jack Daniels";
p1.IdInfo = new IdInfo(666); // chentoz : this is a "reference
// perform a shallow copy of p1 and assign it to p2
Person p2 = p1.ShallowCopy();
// make a deep copy of p1 and assign it to p3
Person p3 = p1.DeepCopy();
// Display values of p1, p2 and p3.
Console.WriteLine("Original values of p1, p2, p3:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values:");
DisplayValues(p2);
Console.WriteLine(" p3 instance values:");
DisplayValues(p3);
// Change values
p1.Age = 32;
p1.BirthDate = Convert.ToDateTime("1900-01-01");
p1.Name = "Frank";
p1.IdInfo.IdNumber = 7878; // <------------------------------ shallow copy
Console.WriteLine("\nValues of p1, p2 and p3 after changes to p1:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(p1);
Console.WriteLine(" p2 instance values (reference values have changed):");
DisplayValues(p2);
Console.WriteLine(" p3 instance values (everything was kept the same):");
DisplayValues(p3);
}
static void Main(string[] args)
{
//Console.WriteLine("Hello World!");
var mainPerson = new Person {
Age = 12,
BirthDate = DateTime.Now,
IdInfo = new IdInfo(10),
Name = "Pepi Tsesmeli"
};
//Console.WriteLine("Main Person " + mainPerson.Age );
//Console.WriteLine("Main Person " + mainPerson.BirthDate);
//Console.WriteLine("Main Person " + mainPerson.Name);
//Console.WriteLine("Main Person " + mainPerson.IdInfo.IdNumber);
var shallowCopy = mainPerson.ShallowCopy();
//Console.WriteLine("Shallow Copy " + shallowCopy.Age);
//Console.WriteLine("Shallow Copy " + shallowCopy.BirthDate);
//Console.WriteLine("Shallow Copy " + shallowCopy.Name);
//Console.WriteLine("Shallow Copy " + shallowCopy.IdInfo.IdNumber);
var deepCopy = mainPerson.DeepCopy();
//Console.WriteLine("Shallow Copy " + deepCopy.Age);
//Console.WriteLine("Shallow Copy " + deepCopy.BirthDate);
//Console.WriteLine("Shallow Copy " + deepCopy.Name);
//Console.WriteLine("Shallow Copy " + deepCopy.IdInfo.IdNumber);
mainPerson.Age = 32;
mainPerson.BirthDate = Convert.ToDateTime("1900-01-01");
mainPerson.Name = "Frank";
mainPerson.IdInfo.IdNumber = 7878;
Console.WriteLine("\nValues of p1, p2 and p3 after changes to p1:");
Console.WriteLine(" p1 instance values: ");
DisplayValues(mainPerson);
Console.WriteLine(" p2 instance values (reference values have changed):");
DisplayValues(shallowCopy);
Console.WriteLine(" p3 instance values (everything was kept the same):");
DisplayValues(deepCopy);
}
