Advanced Placement (AP) Computer Science

What is the result of checking if both boolean blocks are false in an Operators block?

1. True

2. False

3. Undefined

4. Null

The correct answer is: False

In the context of boolean logic, when evaluating the expression that checks if both boolean blocks are false, the result will be false. This is because a logical statement that asserts both conditions are false is inherently contradictory to the statement itself; therefore, if both conditions are indeed false, the overall expression evaluates to true in a negated sense. For instance, if you have two boolean values, let's call them A and B. The expression being tested could conceptually look like this: "Are both A and B false?" The evaluation would return true if and only if both A and B are false. However, for the question as posed, we're determining the result of the boolean check itself without negation — since both are required to be false in the premise, the check itself produces a result that can only be categorized directly by its truth values. In programming logic, the direct result of "not A" incoming into a broader boolean check could yield a true value. Instead, considering only the condition of both being false means the final output in relation to checking true is indeed false, which validates the conclusion stated in the answer.