Illustrates the use of various access modifiers

   

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

Publisher: Sybex;
ISBN: 0782129110
*/

/*
  Example5_10.cs illustrates the use of various
  access modifiers
*/


// declare the Car class
class Car
{

  // declare the fields
  public             string make;
  protected internal string model;
  internal           string color;
  protected          int horsepower = 150;
  private            int yearBuilt;

  // define the methods
  public void SetYearBuilt(int yearBuilt)
  {
    this.yearBuilt = yearBuilt;
  }

  public int GetYearBuilt()
  {
    return yearBuilt;
  }

  public void Start()
  {
    System.Console.WriteLine("Starting car ...");
    TurnStarterMotor();
    System.Console.WriteLine("Car started");
  }

  private void TurnStarterMotor()
  {
    System.Console.WriteLine("Turning starter motor ...");
  }

}


public class Example5_10
{

  public static void Main()
  {

    // create a Car object
    Car myCar = new Car();

    // assign values to the Car object fields
    myCar.make = "Toyota";
    myCar.model = "MR2";
    myCar.color = "black";
    // myCar.horsepower = 200;  // protected field not accessible
    // myCar.yearBuilt = 1995;  // private field not accessible

    // call the SetYearBuilt() method to set the private yearBuilt field
    myCar.SetYearBuilt(1995);

    // display the values for the Car object fields
    System.Console.WriteLine("myCar.make = " + myCar.make);
    System.Console.WriteLine("myCar.model = " + myCar.model);
    System.Console.WriteLine("myCar.color = " + myCar.color);

    // call the GetYearBuilt() method to get the private yearBuilt field
    System.Console.WriteLine("myCar.GetYearBuilt() = " + myCar.GetYearBuilt());

    // call the Start() method
    myCar.Start();
    // myCar.TurnStarterMotor();  // private method not accessible

  }

}