Nick:
I thank you for your addition, but what you provided did nothing to explain the difference between abstract and interface.
In your example:
An abstract Shape with Circle and Square inheriting.
OR
An interface Shape with Circle and Square implementing.
Does exactly the same thing -- so where's the difference?
Also, your:
Please make an effort to understand polymorphic concepts of OOP as
they are rudimentary. Without that one will never grasp OO Patterns
(Gang of Four).
Was more insulting than helpful. Polymorphism was not the question asked.
Clearly the getArea() method is polymorphic and overridden in both Circle and Shape classes and also in BOTH abstract and interface examples.
Additionally, I'm not sure what:
> (int double side)
means.
Cheers,
tedd
_____________________
tedd.sperling@xxxxxxxxx
http://sperling.com
-----
On May 16, 2013, at 8:47 PM, Nick Khamis <symack@xxxxxxxxx> wrote:
> interface Shape {
> public double getArea();
> }
>
> class Circle implements Shape {
> double radius;
> public Circle(int double radius) {
> this.radius = radius;
> }
>
> public double getArea() {
> return (radius * radius * 3.1415);
> }
>
> }
>
> class Square implements Shape {
> double side;
>
> public Square(int double side) {
> this.side = side;
> }
>
> double getArea() {
> return (side * side);
> }
> }
>
>
> Please make an effort to understand polymorphic concepts of OOP as
> they are rudimentary. Without that one will never grasp OO Patterns
> (Gang of Four).
>
> Ninus.
>
> On 5/16/13, Tedd Sperling <tedd.sperling@xxxxxxxxx> wrote:
>> Thanks to both Bastien and Sebastian:
>>
>> While I understand that an interface is like an abstract Class, in that you
>> don't have to flesh-out your methods, but rather where you define exactly
>> how Classes who implement that interface will be required to flesh-out those
>> methods. But so what? What's the point?
>>
>> Without giving me complicated examples, just give me one simple example that
>> illustrates the advantage of using an interface over writing a new Class
>> where you flesh-out whatever methods you want. After all, an interface
>> requires the same thing, does it not?
>>
>> As such, I just don't see the advantage interfaces bring.
>>
>> Cheers,
>>
>> tedd
>>
>>
>> _____________________
>> tedd.sperling@xxxxxxxxx
>> http://sperling.com
>>
>>
>>
>> --
>> PHP General Mailing List (http://www.php.net/)
>> To unsubscribe, visit: http://www.php.net/unsub.php
>>
>>
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
