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

1. C# / CSharp Tutorial
2. Class
3. Class Definition

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...