Csharp/C Sharp/Development Class/System Object Method — различия между версиями

Материал из .Net Framework эксперт
Перейти к: навигация, поиск
м (1 версия)
 
(нет различий)

Текущая версия на 11:43, 26 мая 2010

illustrates some of the System.Object class methods

/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy
Publisher: Sybex;
ISBN: 0782129110
*/
/*
  Example7_6.cs illustrates some of the System.Object
  class methods
*/
using System;

// declare the Car class
class Car
{
  // declare the fields
  public string make;
  public string model;
  // define a constructor
  public Car(string make, string model)
  {
    this.make = make;
    this.model = model;
  }
  // define the Display() method
  public void Display()
  {
    Console.WriteLine("make = " + make);
    Console.WriteLine("model = " + model);
  }
  // define the Copy() method
  public static Car Copy(Car car)
  {
    // perform memberwise clone
    return (Car) car.MemberwiseClone();
  }
}

public class Example7_6
{
  public static void Main()
  {
    // create Car objects
    Console.WriteLine("Creating Car objects");
    Car myCar = new Car("Toyota", "MR2");
    Car myOtherCar = new Car("Porsche", "Boxter");
    Console.WriteLine("myCar details:");
    myCar.Display();
    Console.WriteLine("myOtherCar details:");
    myOtherCar.Display();
    // call some of the methods inherited from the System.Object class
    Console.WriteLine("myCar.ToString() = " + myCar.ToString());
    Console.WriteLine("myCar.GetType() = " + myCar.GetType());
    Console.WriteLine("myCar.GetHashCode() = " + myCar.GetHashCode());
    Console.WriteLine("Car.Equals(myCar, myOtherCar) = " +
      Car.Equals(myCar, myOtherCar));
    Console.WriteLine("Car.ReferenceEquals(myCar, myOtherCar) = " +
      Car.ReferenceEquals(myCar, myOtherCar));
    // set the myCar object reference equal to myOtherCar
    Console.WriteLine("Setting myCar equal to myOtherCar");
    myCar = myOtherCar;
    // check for equality
    Console.WriteLine("Car.Equals(myCar, myOtherCar) = " +
      Car.Equals(myCar, myOtherCar));
    Console.WriteLine("Car.ReferenceEquals(myCar, myOtherCar) = " +
      Car.ReferenceEquals(myCar, myOtherCar));
    // perform a memberwise clone of myCar using the Car.Copy() method
    Console.WriteLine("Performing a memberwise clone of myCar to myOldCar");
    Car myOldCar = Car.Copy(myCar);
    Console.WriteLine("myOldCar details:");
    myOldCar.Display();
  }
}