private static void PairDelegate()
{
//practice with Delegates
//CREATE TWO Students and two dogs
Student Jesse = new Student("Jesse");
Student Stacey = new Student("Stacey");
Dog Milo = new Dog(50);
Dog Fred = new Dog(56);
Pair theStudentPair = new Pair(Jesse, Stacey);
Pair theDogPair = new Pair(Milo, Fred);
Console.WriteLine($"student pair {theStudentPair}");
Console.WriteLine($"the dog pair {theDogPair}");
//Instantiate the delegates
Pair.WhichIsFirst theStudentDelegate = new Pair.WhichIsFirst(Student.WhichStudentComesFirst);
Pair.WhichIsFirst theDogDelegate = new Pair.WhichIsFirst(Dog.WhichDogComesFirst);
//sort using the delegates
theStudentPair.Sort(theStudentDelegate);
theDogPair.Sort(theDogDelegate);
Console.WriteLine($"After Sort the student pair {theStudentPair}");
Console.WriteLine($"After Sort the dog pair {theDogPair}");
theStudentPair.ReverseSort(theStudentDelegate);
theDogPair.ReverseSort(theDogDelegate);
Console.WriteLine($"After Reverse Sort the student pair {theStudentPair}");
Console.WriteLine($"After Reverse Sort the dog pair {theDogPair}");
Pair theEmployeePair = new Pair(new Employee(2), new Employee(4));
Pair.WhichIsFirst theEmpDelegate = new Pair.WhichIsFirst(Employee.WhichEmployeeComesFirst);
theEmployeePair.Sort(theEmpDelegate);
//create the delegate for reversing the name
Pair.ReverseMyName reverseDelegateStudent = new Pair.ReverseMyName(Student.ReverseName);
Pair.ReverseMyName reverseDelegateEmployee = new Pair.ReverseMyName(Employee.ReverseName);
theStudentPair.ReverseObject(reverseDelegateStudent);
theEmployeePair.ReverseObject(reverseDelegateEmployee);
}
static void Main(string[] args)
{
Student Nam = new Student("Nam");
Student Hanh = new Student("Hanh");
Cat Mun = new Cat(5);
Cat Muop = new Cat(3);
Pair studentPair = new Pair(Nam, Hanh);
Pair catPair = new Pair(Mun, Muop);
Console.WriteLine("Sinh vien: \t\t\t {0}", studentPair.ToString());
Console.WriteLine("Cat: \t\t {0}", catPair.ToString());
Pair.WhichIsFirst theDelegate1 = new Pair.WhichIsFirst(Student.WhichStudentComesFirst);
Pair.WhichIsFirst theDelegate2 = new Pair.WhichIsFirst(Cat.WhichCatComesFirst);
Console.ReadKey();
}
static void Main(string[] args)
{
// tao hai doi tuong Student va Cat
// dua chung vao hai doi tuong Pair
Student Thao = new Student("Thao");
Student Mai = new Student("Mai");
Cat Mun = new Cat(5);
Cat Ngao = new Cat(2);
Pair studentPair = new Pair(Thao, Mai);
Pair catPair = new Pair(Mun, Ngao);
Console.WriteLine("Sinh vien \t\t: {0}", studentPair.ToString());
Console.WriteLine("Meo \t\t\t: {0}", catPair.ToString());
// tao uy quyen
Pair.WhichIsFirst theStudentDelegate = new Pair.WhichIsFirst(Student.WhichStudentComesFirst);
Pair.WhichIsFirst theCatDelegate = new Pair.WhichIsFirst(Cat.WhichCatComesFirst);
// sap xep dung uy quyen
studentPair.Sort(theStudentDelegate);
Console.WriteLine("Sau khi sap xep studentPair\t\t: {0}", studentPair.ToString());
//studentPair.ReverseSort(theStudentDelegate);
// Thuc hien uy quyen ma khong can khai bao the hien uy quyen cuc bo
studentPair.ReverseSort(Student.OrderStudents);
Console.WriteLine("Sau khi sap xep nguoc studentPair\t\t: {0}", studentPair.ToString());
catPair.Sort(theCatDelegate);
Console.WriteLine("Sau khi sap xep catPair\t\t: {0}", catPair.ToString());
//catPair.ReverseSort(theCatDelegate);
// Thuc hien uy quyen ma khong can khai bao the hien uy quyen cuc bo
catPair.ReverseSort(Cat.OrderCats);
Console.WriteLine("Sau khi sap xep nguoc catPair\t\t: {0}", catPair.ToString());
Console.ReadLine();
}
