Fundamentals of Computer Programming - Old Questions

2. Determine which of the following are valid identifiers? If invalid, explain why?

(a) record1 (b)record

(c) file_3 (d) return

(e) #tax (f) name

(g) goto (h) name and address

(i) name-and-address (j) 123-45-6789

(k) Void (l) name_address