Define two classes (C#) : Class Definition « Language Basics « ASP.Net

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2. Language Basics
3. Class Definition

Define two classes (C#)

<%@ page language="C#" runat="server" Debug="true"%>

<script runat="server">


  public class Key
  {
    private int shape;
    public Key(int newshape)
    {
      shape = newshape;
    }

    public int Shape
    {
      get
      {
        return shape;
      }
    }
  }
    
    public class Car
  {
    private string color;
    private int gear;
    private int ignition;
    private bool engineRunning;
    private static int count = 0;
    public Car(int IgnitionShape)
    {  
      color = "Cold gray steel";
      ignition = IgnitionShape;
      count += 1;
    }

    public static int Count
    {
      get
      {
        return count;
      }

    }

    public string Color
    {
      get
      {
        return color;
      }
      set
      {
        color = value;
      }
    }

    public int Gear
    {
      get
      {
        return gear;
      }
    }

    public string IsRunning  
    {
      get
      {

        if (engineRunning)
        {
          return "The engine is running.";
        }
        else
        {
          return "The engine is not running.";
        }
      }
    }
    public void ChangeGear(int direction)
    {
      if (direction < 0) gear -= 1;
      if (direction > 0) gear += 1;
      if (gear > 5) gear = 5;
      if (gear < -1) gear = -1;
    }
    
    public void ChangeGear(string direction)
    {
      
      if (direction == "down")
      {
        ChangeGear(-1);
      }
      if (direction == "up")
      {
        ChangeGear(+1);
      }
      
    }
    public void Ignition(Key IgnitionKey)
    {
      if (IgnitionKey.Shape == ignition) engineRunning = true;
    }
    public void EngineOff()
    {
      engineRunning = false;
    }

  }
    
    public void Page_Load()
  {
    Key AlexKey = new Key(0987654321);
    Key RobKey = new Key(1861005040);
    Key MyKey = new Key(1234567890);

    Car MyCar = new Car(1234567890);
    Response.Write("<b>New object 'MyCar' created.</b>");


    Response.Write("<br/>Color: " + MyCar.Color);
    Response.Write("<br/>Gear: " + MyCar.Gear);

    MyCar.Color = "Black";
    MyCar.ChangeGear(+1);
    Response.Write("<br/><b>Properties updated.</b>");

    Response.Write("<br/>New color: " + MyCar.Color);
    Response.Write("<br/>New gear: " + MyCar.Gear);

    MyCar.ChangeGear("up");
    Response.Write("<br/><b>Shifted 'up' one gear.</b>");

    Response.Write("<br/>New gear: " + MyCar.Gear);

    Response.Write("<hr/>Attempting to start MyCar with AlexKey: ");
    MyCar.Ignition(AlexKey);
    Response.Write(MyCar.IsRunning);

    Response.Write("<hr/>Attempting to start MyCar with RobKey: ");
    MyCar.Ignition(RobKey);
    Response.Write(MyCar.IsRunning);

    Response.Write("<hr/>Attempting to start MyCar with MyKey: ");
    MyCar.Ignition(MyKey);
    Response.Write(MyCar.IsRunning);
    Response.Write("<br/>Attempting to stop MyCar: ");
    MyCar.EngineOff();
    Response.Write(MyCar.IsRunning);

  }
</script>

           
       

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