spacer
Yehuda Shiran May 16, 2002
Defining Multiple Constructors
Tips: May 2002

Yehuda Shiran, Ph.D.
Doc JavaScript

Developer News
News Flash: Adobe Has iPhone Workaround
Adobe's Flash 10.1 Goes Mobile (Minus iPhone)
A Salute to Visionary CEOs

The following class is used to construct airplanes:

  class Airplane {
    var model: int;
  
    function Airplane() {
      model = 767;
    }
  } 
All airplanes instantiated using the Airplane class will be 767 because there's only one constructor that initializes the jet's model to 767. A class can have more than one constructor, as shown in the following listing:

  class Airplane {
    var model: int;
  
    function Airplane() {
      model = 767;
    }
  
    function Airplane(newModel : int) {
      model = newModel;
    }
  } 
You can create a 767 using the class's default constructor:

  var thirdJet : Airplane;
  thirdJet = new Airplane();
You can also create a 777 by calling the second constructor (with the parameter):

  var fourthJet : Airplane;
  fourthJet = new Airplane(777);
To learn more about JScript .NET, go to Column 108, JScript .NET, Part II: Major Features.


People who read this tip also read these tips:

Look for similar tips by subject:

internet.commediabistro.comJusttechjobs.comGraphics.com

Search:

WebMediaBrands Corporate Info

Legal Notices, Licensing, Reprints, Permissions, Privacy Policy.
Advertise | Newsletters | Shopping | E-mail Offers | Freelance Jobs

webref The latest from WebReference.com Browse >
Building a Banking Application Home Page with OOP · Mixing Scripting Languages · Review: phpFox, a Social Networking CMS with all the Bells and Whistles
Sitemap · Experts · Tools · Services · Email a Colleague · Contact FREE Newsletters 
 The latest from internet.com
DiVitas's Mobile UC Now Available on the Latest Devices · Review: FON Fonera 2.0n · Chip Market Recovering From '08 Collapse