Question

5. Identify valid identifier in
JAVA from the options given
below:
O 1_ab
O switch
O. ab cd
O a123_bcd​

Answer 1

Explanation:

4. is the answer

Simplify and write in exponential form [( 6^2)^3 x 6^4 ] X 5^10 (3 mark)

Answer 2

Identifiers are names given to different entities such as constants, variables, structures, functions, etc. Example: int amount; double totalbalance; In the above example, amount and totalbalance are identifiers and int, and double are keywords.