Making Handle a Superclass

I am trying to make a handle class, but I keep getting an error which says "The class 'handle' is not a superclass of class 'Go_board', as required to invoke a superclass constructor or method."

Here is the code I am trying for my class:

classdef Go_board < handle
  properties
      Board
  end

    methods
        function obj=Go_board(size)
            A = Go_cell();
            obj.Board = repmat(A, size);
        end
    end
end

Also, here is the code for by Go_cell class:

classdef Go_cell
  properties
      state = char('e');
      checked = logical(0);
  end
end

I don't understand what is wrong because I thought "< handle" made handle a superclass of Go_board. I appreciate any help.

[Jacob Halbrooks]

It looks like you've subclassed from handle correctly. What code do you execute that results in an error?

Also, you might consider using false instead of logical(0), and just 'e' instead of char('e').

Answer 1

[Sean de Wolski]

Run:

clear;
clear classes;

To make sure that any old instances of your class are gone.

If the error still appears, then make sure you're using the latest version of the class:

which -all Go_board

Writing a game while on vacation? :)

[Sean de Wolski]

My guess is it's the second one, i.e. you have two versions of the class. Your class doesn't appear to call the superclass constructor.

[Benjamin]

Running "clear classes" was what worked. Thanks.

Yes, by brother challenged me to code a Go board over my break.