Class can contain class : Class Definition « Class « C# / CSharp Tutorial

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C# / CSharp Tutorial » Class » Class Definition 
7.1.10.Class can contain class
using System;

public class Car 
{
  private int maxSpeed;

  private Radio theMusicBox = new Radio();

  public Car()
  {
    maxSpeed = 100;
  }

  public void SwitchRadio(bool state)
  {
    theMusicBox.TurnOn(state);
  }
}

public class Radio
{
  public void TurnOn(bool on)
  {
    if(on)
      Console.WriteLine("ON...");
    else
      Console.WriteLine("OFF...");
  }
}

public class MainClass
{
  public static void Main(string[] args)
  {    
    // Make a car.
    Car c1 = new Car();
    c1.SwitchRadio(true);

    c1.SwitchRadio(false);
  }
}
ON...
OFF...
7.1.Class Definition
7.1.1.Class Fundamentals
7.1.2.The General Form of a Class
7.1.3.A Simple Class showing class definition syntax
7.1.4.A simple, but complete, C# class.
7.1.5.A Simple Class with member fields and constrctor
7.1.6.Declare an object of type Building
7.1.7.Create two objects for one class
7.1.8.Copy a class
7.1.9.Encapsulation example
7.1.10.Class can contain class
7.1.11.Inherited member methods and fields
7.1.12.Reference to Base Class
7.1.13.Implement multiple interfaces
7.1.14.Extends class and implements interface
7.1.15.C# Accessibility Keywords
7.1.16.The modifiers can be applied to members of types, and have various uses.
7.1.17.Value Types: class vs struct
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