Is it possible to create an Abstract Class in mql5?

[Luis Sampaio]

Hi Guys,

 I'm wondering if is it possible to create an Abstract Class in mlq5?

 For example, like we use in Java:

http://docs.oracle.com/javase/tutorial/java/IandI/abstract.html

 

Java Code:


abstract class GraphicObject {
    int x, y;
    ...
    void moveTo(int newX, int newY) {
        ...
    }
    abstract void draw();
    abstract void resize();
}

class Circle extends GraphicObject {
    void draw() {
        ...
    }
    void resize() {
        ...
    }
}
class Rectangle extends GraphicObject {
    void draw() {
        ...
    }
    void resize() {
        ...
    }
}

[Alain Verleyen]

luisf:

Hi Guys,

 I'm wondering if is it possible to create an Abstract Class in mlq5?

 For example, like we use in Java:

http://docs.oracle.com/javase/tutorial/java/IandI/abstract.html

 

There is no abstract class in mql5. But you can use a "normal" class and declare its method as virtual. The only difference, I think, is you can instantiated this class in mql5.

Please read the documentation.

[Luis Sampaio]

angevoyageur:

There is no abstract class in mql5. But you can use a "normal" class and declare its method as virtual. The only difference, I think, is you can instantiated this class in mql5.

Please read the documentation.

That was exactly what I was looking for.  Also I found this very useful article that has a section talking about virtual functions: https://www.mql5.com/en/articles/351

Thanks!!

[Dua Yong Rew]

I have yet to use classes in my EA. I think my EA are very simple.

[Pasi Hakamaki]

doshur:
I have yet to use classes in my EA. I think my EA are very simple.

I have started to learn and can recommed these.