Multiple choice technology web technology

Whenever the "&&" operator is used, such as in: exp1 && exp2 where exp1 and exp2 are boolean expressions, both the boolean expressions are not always evaluated

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The && operator uses short-circuit evaluation: if the left operand is false, the right operand is not evaluated at all. This means both expressions are NOT always evaluated - the second one is skipped when the first is false. Option B (False) would only be correct if both expressions were always evaluated regardless of the first value.

AI explanation

To answer this question, you need to understand how the "&&" operator works in boolean expressions.

The "&&" operator is known as the logical AND operator. It returns true if both of its operands are true, and false otherwise.

In the expression "exp1 && exp2", the "&&" operator uses short-circuit evaluation. This means that if the value of exp1 is false, the value of exp2 is not evaluated because the overall result of the expression will already be false. This is because for the logical AND operator to return true, both operands must be true.

Therefore, when using the "&&" operator, if exp1 evaluates to false, exp2 is not evaluated, thus saving unnecessary computation.

Hence, the statement "both the boolean expressions are not always evaluated" is true.

The correct answer is A) True.

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