Question

(a) Name one Entry Controlled loop.

(b) What is the difference between set Enabled ( ) and set Editable ( ) methods?

(c) Identify invalid variable name(s) out of the following. State reason if invalid:

(i) while

(ii) 123 salary

(iii) big

(iv) product

Answer 1

(a) For loop

(b) The setEnabled (true) enables a component for use, and setEnabled (false) disables it. SetEditable method prevents users from changing a field.

(c) (i) - Keyword.

(ii) - can't start with number.