Please Help Me About Sub and Super Classes

Hello, I am trying to learn classes in Matlab here is a basic question. How can I write two classes A and B in order to represent following structur?

My first class is A and second class is B. Let A has two property as p and q and B has also two property as m and n. Moreover, one of class is subclasses of other.

A.p=1;
A.q=2;

B.m=3;
B.n=4;

A.B=B; %Minor question :) which one is a subclass A or B?

%Hence

A.B.m    %should be 3
A.B.n    %should be 4

[per isakson]

Search for "Defining a Subclass" in the help. As far I can judge, you describe an association.

[Volkan Kandemir]

I have read lots of articles and I have writen some classes but I can not combine classes. When I try to make one of them subclases I get the following resault.

A.p=1
A.q=2
A.m=3
A.n=4

[per isakson]

You have defined A as a subclass of B and the result you see is as documented, i.e. what you should expect.

Answer 1

[per isakson]

It is a convention to use upper case for the first letter in a class name and lower case for instancies/objects

Try

    >> a = A();
    >> a.b.m
    ans =
         3

where

    classdef A
        properties
            p = 1;
            q = 2;
            b = B;
        end
    end

and

    classdef B
        properties
            m = 3;
            n = 4;
        end
    end

.

One more example

    >> A.B.m
    ans =
         3

where

    classdef A
        properties ( Constant )
            p = 1;
            q = 2;
            B = B();
        end
    end

and

    classdef B
        properties ( Constant )
            m = 3;
            n = 4;
        end
    end

However, I don't think this is what you really ask for.

[Volkan Kandemir]

Thank you very much for your answer. That is what I excatly want. Also thank you for correcting me about upper and lower cases. Where can I find these rules. For example, all cracters in global variables should be writen as UPPER CASE like.

global WORKERS

[per isakson]

There is very little on naming conventions in the Matlab documentation.

google for "object oriented programming naming conventions"

See Java Code Conventions

See the blog Book Review: The Elements of MATLAB Style