classdef Invoker < handle
    properties
        command
    end
    methods
        function setOrder(obj,command)
            obj.command = command;
        end
        function execute(obj)
           obj.command.execute();
        end
    end
end

classdef Command < handle
    methods(Abstract)
        execute(obj);
    end
end

classdef ConcreteCommand < Command
    properties
        receiver
    end
    methods
        function obj = ConcreteCommand(receiver)
           obj.receiver = receiver;
        end        
        function execute(obj)
            obj.receiver.execute();
        end
    end
end

classdef Receiver < handle
    methods
        function execute(~)
           disp("Receiver execute");
        end
    end
end

r = Receiver();
c = ConcreteCommand(r);
i = Invoker();
i.setOrder(c);
i.execute();