OOP .. Need Help

Wow, great reply

I like what u said, I learned good from that

Thanks alot

I enchanced my skills just by imagining my class as just what they were: Objects.

Take this example:

public class Ball
{

    //Good rule of thumb, always make these private and
    //access them via "smart fields" a.k.a. properties,
    //as show below.
    private string color;
    private string material;

    //The constructor is used to provide default
    //values or passed parameters to a new ball.
    public Ball()
    {
       this.color = "Black";
       this.material = "Rubber";
    }

    //Methods to manipulate the ball
    public void Throw(string location)
    {
        //Use the location to define where the ball
        //should now be
    }

    //Properties are basically special variables
    //The ball has a color, and it is made of
    //a material
    public string Color
    {
       get { return this.color; }
       set { this.color = value; }
    }
    public string Material
    {
       get { return this.material; }
       set { this.material = value; }
    }
}

The ball is a "virtual" object, it contains methods to manipulate it, and it contains characteristics, or properties, of the ball. If you wanted multiple balls (save the evil thoughts :P ), you could do something like this:

public class MyShapes
{
    List<Ball> balls = new List<Ball>();

    //Create a strongly typed list containing
    //two balls (the norm)
    balls.Add(new Ball());
    balls.Add(new Ball());

    //Now you can access their properties and methods:
    balls[0].Color = "Yellow";
    balls[1].Material = "Foam";

    //Throw the first ball
    balls[0].Throw( /*MyLocation*/ );
}

A TON more could be done, but this is the most base example. Just keep this in mind, objects are created using encapsulation. They contain properties, methods, and fields that belong to the object (or the class in the case of static members) and can be used to manipulate the data in the class or the class itself. Once you get into the mindset that all classes are really objects like the Ball above, then you can expand your knowledge by using inheritance and polymorphism. Im not sure just how much experience you have, so Im just starting from the ground up :)

Thanx again, Maha

Of course I know that I can easily get thousand of topics in OOP

but as I said before I just care about the practical part, examples, real projects .. etc

The links u gave me is really good, hope they will increase my experience and

enhance my practical level

Thnx dear,

There are many articles about Object-Oriented Programming in the C# Corner website. If you type “Object-Oriented Programming” in the search box of C # Corner you can get it.

 

Also there are many e-books available in similar title in Apress website (http://www.apress.com/).

Scott,

Thanks also, very good explanation of OOP :)

Thanks all guys

any other links or advices ?

Maha,

Thanks alot for the link, It's really useful :)

Hope this link will help explain things a little for you

http://www.developer.com/net/csharp/article.php/1465681

Kind Regards

ScottyB

http://www.java2s.com/Code/CSharp/CatalogCSharp.htm

 

Language Basics section of the above website has many C# examples. See whether

these examples do any help.