<code>(false && expensive())</code> evaluates expensive() how often?
- A
Once
- B
Always
- C
Twice
- Dcheck_circle
Never (short-circuited)
Explanation
<code>&&</code> short-circuits when left is false; right side not evaluated.
AP Computer Science A· difficulty 4/5
<code>(false && expensive())</code> evaluates expensive() how often?
Once
Always
Twice
Never (short-circuited)
Explanation
<code>&&</code> short-circuits when left is false; right side not evaluated.
Want 10 more like this — adaptive to your weak spots?