Abstract type: Difference between revisions

=={{header|M2000 Interpreter}}==

M2000 not use interfaces, but can combine groups (used as objects), and because we can alter definitions, we can make an Abstract group by implement modules and functions with a call to Error "not implement yet"

Private:

      x as double=1212, z1 as currency=1000, k$="ok"

      \\ we can use For Object {} and a dot before members to get access

      Print .z=1050.12, ExpType$(.z), Type$(.z) ' true, Currency, Group

 

=={{header|Mathematica}}/{{header|Wolfram Language}}==