Illustrates nested classes : Class Definition « Class Interface « C# / C Sharp

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Illustrates nested classes
Illustrates nested classes

/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy

Publisher: Sybex;
ISBN: 0782129110
*/
/*
  Example6_6.cs illustrates nested classes
*/


// declare the Car class
class Car
{

  // declare the Engine class
  public class Engine
  {

    // declare the Engine fields
    public int cylinders;
    public int horsepower;

    // define the Engine method
    public void Start()
    {
      System.Console.WriteLine("Engine started");
    }

  }

  // declare the Car fields
  public string make;
  public Engine engine;  // Car has an Engine

  // define the Car method
  public void Start()
  {
    engine.Start();
  }

}


public class Example6_6
{

  public static void Main()
  {

    // declare a Car object reference named myCar
    System.Console.WriteLine("Creating a Car object");
    Car myCar = new Car();
    myCar.make = "Toyota";

    // Car objects have an Engine object
    System.Console.WriteLine("Creating an Engine object");
    myCar.engine = new Car.Engine();
    myCar.engine.cylinders = 4;
    myCar.engine.horsepower = 180;

    // display the values for the Car and Engine object fields
    System.Console.WriteLine("myCar.make = " + myCar.make);
    System.Console.WriteLine("myCar.engine.cylinders = " +
      myCar.engine.cylinders);
    System.Console.WriteLine("myCar.engine.horsepower = " +
      myCar.engine.horsepower);

    // call the Car object's Start() method
    myCar.Start();

  }

}


           
       
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