WORKING-STORAGE SECTION for defining subclass instance data

Use the WORKING-STORAGE SECTION in the DATA DIVISION of the subclass OBJECT paragraph to describe any instance data that the subclass needs in addition to the instance data defined in its superclasses. Use the same syntax that you use to define instance data in a class.

For example, the definition of the instance data for the CheckingAccount subclass of the Account class might look like this:

IDENTIFICATION DIVISION.
Object.
 DATA DIVISION.
 WORKING-STORAGE SECTION.
 01 CheckFee pic S9(9) value 1.
 . . .
End Object.