first-name
is similar to
last-name
except that it only has 15 characters.
middle-initial
is a single character, so we could have spelled this out as
character(1)
but
character
represents a single position as well. The next four fields mirror the others above them, as they are either
character
or
integer.
Note that both variables
account-number
and
zip-code
could have been defined using the keyword
character
rather than
integer
since each number is included in the character set. The last line