static void Main(string[] args)
{
Console.WriteLine("***** The Employee Class Hierarchy *****\n");
SalesPerson danny = new SalesPerson();
danny.Name = "Danny";
danny.Age = 31;
danny.SalesNumber = 50;
Manager chucky = new Manager("Chucky", 50, 92, 100000, "333-23-2322", 9000);
//错误!不能从对象实例中直接访问受保护数据
//Employee emp = new Employee();
//emp.empName = "Fred";
double cost = chucky.GetBenefitCost();
// 定义福利等级
Employee.BenefitPackage.BenefitPackageLevel myBendfitLevel = Employee.BenefitPackage.BenefitPackageLevel.Platinum;
chucky.GiveBonus(300);
chucky.DisplayStats();
Console.WriteLine();
SalesPerson fran = new SalesPerson("Fran", 43, 93, 3000, "932-32-3232", 31);
fran.GiveBonus(200);
fran.DisplayStats();
Console.WriteLine();
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("***** The Employee Class Hierarchy *****\n");
SalesPerson fred = new SalesPerson
{
Age = 31,
Name = "Fred",
SalesNumber = 50
};
Manager chucky = new Manager("Chucky", 50, 92, 100000, "333-23-2322", 9000);
chucky.GiveBonus(300);
chucky.DisplayStats();
Console.WriteLine();
SalesPerson fran = new SalesPerson("Fran", 43, 93, 3000, "932-32-3232", 31);
fran.GiveBonus(200);
fran.DisplayStats();
Console.WriteLine();
double cost = chucky.GetBenefitCost();
Console.WriteLine($"Benefit Cost: {cost}");
Employee.BenefitPackage.BenefitPackageLevel myBenefitLevel =
Employee.BenefitPackage.BenefitPackageLevel.Platinum;
CastingExamples();
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("***** The Employee Class Hierarchy *****\n");
SalesPerson fred = new SalesPerson();
fred.Age = 31;
fred.Name = "Fred";
fred.SalesNumber = 50;
Console.ReadLine();
// Assume Manager has a constructor matching this signature:
// (string fullName, int age, int empID,
// float currPay, string ssn, int numbOfOpts)
Manager chucky = new Manager("Chucky", 50, 92, 100000, "333-23-2322", 9000);
//double cost = chucky.GetBenefitCost();
chucky.GiveBonus(300);
chucky.DisplayStats();
Console.WriteLine();
SalesPerson fran = new SalesPerson("Fran", 43, 93, 3000, "932-32-3232", 31);
fran.GiveBonus(200);
fran.DisplayStats();
Console.ReadLine();
// Define benefit level
Employee.BenefitPackage.BenefitPackageLevel mybenefitLevel =
Employee.BenefitPackage.BenefitPackageLevel.Platinum;
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("***** The Employee Class Hierarchy *****\n");
SalesPerson beedle = new SalesPerson();
beedle.Age = 28;
beedle.Name = "Beedle";
beedle.SalesNumber = 38;
// A better bonus system!
Manager ganondorf = new Manager("Ganondorf", 200, 4, 181000, "320-10-2923", 15000);
double cost = ganondorf.GetBenefitCost();
ganondorf.GiveBonus(3000);
ganondorf.DisplayStats();
Console.WriteLine();
SalesPerson impa = new SalesPerson("Impa", 67, 21, 90000, "281-23-2180", 17);
impa.GiveBonus(1000);
impa.DisplayStats();
// Define my benefit level.
Employee.BenefitPackage.BenefitPackageLevel myBenefitLevel =
Employee.BenefitPackage.BenefitPackageLevel.Platinum;
Console.ReadLine();
}
static void Main(string[] args)
{
// Create and use the public inner class. OK!
OuterClass.PublicInnerClass inner;
inner = new OuterClass.PublicInnerClass();
// Compiler Error! Cannot access the private class.
//OuterClass.PrivateInnerClass inner2;
//inner2 = new OuterClass.PrivateInnerClass();
// Aufruf einer tief nested Enumeration BenefitPackageLevel
// Define my benefit level.
Employee.BenefitPackage.BenefitPackageLevel myBenefitLevel =
Employee.BenefitPackage.BenefitPackageLevel.Platinum;
Console.ReadLine();
}
static void Main(string[] args)
{
SalesPerson fred = new SalesPerson();
fred.Name = "Fred";
fred.Age = 31;
fred.SalesNumber = 50;
fred.DisplayStats();
Employee.BenefitPackage.BenefitPackageLevel myBenefitLevel = Employee.BenefitPackage.BenefitPackageLevel.Platinum;
Console.ReadKey();
}
static void Main(string[] args)
{
Employee.BenefitPackage.BenefitPackageLevel myBenefitLevel = Employee.BenefitPackage.BenefitPackageLevel.Platinum;
Manager chucky = new Manager("Chucky", 50, 92, 100000, "333-23-2322", 9000);
chucky.GiveBonus(300);
chucky.DisplayStats();
Console.WriteLine();
SalesPerson fran = new SalesPerson("Fran", 43, 93, 3000, "932-32-3232", 31);
fran.GiveBonus(200);
fran.DisplayStats();
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("***** The Employee Class Hierarchy *****\n");
// Create a subclass object and access base class functionality.
SalesPerson fred = new SalesPerson();
fred.Age = 31;
fred.Name = "Fred";
fred.SalesNumber = 50;
Manager chucky = new Manager("Chucky", 50, 92, 100000, "333-23-2322", 9000);
double cost = chucky.GetBenefitCost();
// Create and use the public inner class. OK!
OuterClass.PublicInnerClass inner;
inner = new OuterClass.PublicInnerClass();
// Compiler Error! Cannot access the private class.
//OuterClass.PrivateInnerClass inner2;
//inner2 = new OuterClass.PrivateInnerClass();
// Define my benefit level.
Employee.BenefitPackage.BenefitPackageLevel myBenefitLevel = Employee.BenefitPackage.BenefitPackageLevel.Platinum;
Console.WriteLine("BenefitPackageLevel: {0}", myBenefitLevel);
Console.WriteLine();
// Give each employee a bonus?
chucky.GiveBonus(300);
chucky.DisplayStats();
Console.WriteLine();
SalesPerson fran = new SalesPerson("Fran", 43, 93, 3000, "932-32-3232", 31);
fran.GiveBonus(200);
fran.DisplayStats();
Console.WriteLine();
// Error! Cannot create an instance of an abstract class!
//Employee X = new Employee();
CastingExamples();
Console.ReadLine();
}
static void Main(string[] args)
{
Console.WriteLine("****** The Employee Class Hierarchy ******\n");
SalesPerson fred = new SalesPerson()
{
Age = 31, Name = "Fred", SalesNumber = 50, Pay = 6000
};
Manager chucky = new Manager("Chucky", 45, 1497, 102450, "1678-05-04", 9000);
double cost = chucky.GetBenefitCost();
Employee.BenefitPackage.BenefitPackageLevel myBenefitlevel = Employee.BenefitPackage.BenefitPackageLevel.Platinum;
chucky.DisplayStats();
chucky.GiveBonus(300);
chucky.DisplayStats();
Console.WriteLine();
fred.DisplayStats();
fred.GiveBonus(150);
fred.DisplayStats();
Console.WriteLine();
CastingExamples();
Hexagon hex;
object frank = new Manager();
try
{
hex = (Hexagon)frank;
}
catch (Exception e)
{
ConsoleColor prevCol = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(e.Message);
Console.ForegroundColor = prevCol;
}
TestAsKeyword();
Console.ReadLine();
}
// Create a subclass object and access base class functionality.
static void Main(string[] args)
{
Console.WriteLine("***** The Employee Class Hierachy *****\n");
SalesPerson fred = new SalesPerson();
fred.Age = 31;
fred.Name = "Fred";
fred.SalesNumber = 50;
//Manager chucky = new Manager("Chucky", 50, 92, 100000, "333-23-2322", 9000);
//chucky.GiveBonus(300);
//double cost = chucky.GetBenefitCost();
//chucky.DisplayStats();
//Console.WriteLine();
//SalesPerson fran = new SalesPerson("Fran", 43, 93, 3000, "932-32-3232", 31);
//fran.GiveBonus(200);
//fran.DisplayStats();
//Console.WriteLine();
// Define my benefit level.
Employee.BenefitPackage.BenefitPackageLevel myBenefitLevel = Employee.BenefitPackage.BenefitPackageLevel.Platinum;
Console.WriteLine("My Benefit Level is {0}", myBenefitLevel);
Console.WriteLine();
// A better bonus system!
Manager chucky = new Manager("Chucky", 50, 92, 100000, "333-23-2322", 9000);
chucky.GiveBonus(300);
chucky.DisplayStats();
Console.WriteLine();
SalesPerson fran = new SalesPerson("Fran", 43, 93, 3000, "932-32-3232", 31);
fran.GiveBonus(200);
fran.DisplayStats();
Console.WriteLine();
}
// Create a subclass object and access base class functionality.
static void Main(string[] args)
{
Console.WriteLine("***** The Employee Class Hierarchy *****\n");
SalesPerson fred = new SalesPerson();
fred.Age = 31;
fred.Name = "Fred";
fred.SalesNumber = 50;
// Assume Manager has a constructor matching this signature:
// (string fullName, int age, int empID, float currPay, string ssn, int numbOfOpts)
Manager chucky = new Manager("Chucky", 50, 92, 100000, "333-23-2322", 9000);
Console.WriteLine(chucky.Name);
// Error! Can't access protected data from client code.
//Employee emp = new Employee();
//emp.empName = "Fred";
double cost = chucky.GetBenefitCost();
Console.WriteLine($"cost: {cost}");
// Define my benefit level.
Employee.BenefitPackage.BenefitPackageLevel myBenefitLevel =
Employee.BenefitPackage.BenefitPackageLevel.Platinum;
Console.WriteLine($"myBenefitLevel: {myBenefitLevel}");
// Give each employee a bonus?
// chucky = new Manager("Chucky", 50, 92, 100000, "333-23-2322", 9000);
chucky.GiveBonus(300);
chucky.DisplayStats();
Console.WriteLine();
SalesPerson fran = new SalesPerson("Fran", 43, 93, 3000, "932-32-3232", 31);
fran.GiveBonus(200);
fran.DisplayStats();
// Ack! You can't cast frank to a Hexagon, but this compiles fine!
// Catch a possible runtime exception which can be happened by invalid explicit type cast.
object frank = new Manager();
Hexagon hex;
try
{
hex = (Hexagon)frank;
}
catch (InvalidCastException ex)
{
Console.WriteLine(ex.Message);
}
// Use "as" to test compatability.
object[] things = new object[4];
things[0] = new Hexagon();
things[1] = false;
things[2] = new Manager();
things[3] = "Last thing";
foreach (object item in things)
{
Hexagon h = item as Hexagon;
if (h == null)
{
Console.WriteLine("Item is not a hexagon");
}
else
{
h.Draw();
}
}
Console.ReadLine();
}
static void Main(string[] args)
{
#region Uncomment to test abstract base class.
// Employee e = new Employee();
// Uncomment to test readonly field.
// Employee brenner = new Employee();
// brenner.SSNField = "666-66-6666";
#endregion
Console.WriteLine("***** These folks work at {0} *****",
Employee.Company);
Manager chucky = new Manager("Chucky", 35, 92, 100000, "333-23-2322", 9000);
chucky.GiveBonus(300);
chucky.DisplayStats();
chucky.Age++; // Happy birthday Chuck!
Console.WriteLine();
SalesPerson fran = new SalesPerson("Fran", 26, 93, 30000, "932-32-3232", 31);
fran.GiveBonus(200);
fran.DisplayStats();
Console.WriteLine();
#region Casting examples
Console.WriteLine("***** Casting examples *****");
// A Manager 'is-a' object.
object frank = new Manager("Frank Zappa", 50, 9, 40000, "111-11-1111", 5);
// A Manager 'is-a' Employee too.
Employee moonUnit = new Manager("MoonUnit Zappa", 16, 2, 20000, "101-11-1321", 1);
// A PTSales dude(tte) is a Sales dude(tte)
SalesPerson jill = new PTSalesPerson("Jill", 30, 834, 100000, "111-12-1119", 90);
// Cast from the generic System.Object into a strongly
// typed Manager.
Console.WriteLine("***** Counting frank's stock options *****");
Manager mgr = (Manager)frank;
Console.WriteLine("Frank's options: {0}", mgr.NumbOpts);
Console.WriteLine("Frank's options: {0}",
((Manager)frank).NumbOpts);
Console.WriteLine("\n***** Firing employees using casting operations! *****");
TheMachine.FireThisPerson(moonUnit);
Console.WriteLine();
TheMachine.FireThisPerson(jill);
Console.WriteLine();
// Error! Must cast when moving from base to derived!
// TheMachine.FireThisPerson(frank);
TheMachine.FireThisPerson((Employee)frank);
Console.WriteLine();
#endregion
// Creating a (very) nested BenefitPackageLevel enum variable.
Employee.BenefitPackage.BenefitPackageLevel myBenifitLevel =
Employee.BenefitPackage.BenefitPackageLevel.Platinum;
Console.ReadLine();
}
