Question

this is the post test for robotics 1--use it as a review for the state test.
question 36 0.5 pts
in programming, what action must be taken before a variable can be used?

• program must run a code
• order of functions must be established
• must be declared
• no actions must be taken

Explanation:

In programming, a variable needs to be declared (specifying its type, name, etc.) before it can be used. Running code, establishing function order, or taking no action don't relate to making a variable usable initially. So the correct option is the one stating it must be declared.

Answer:

C. Must be declared