Core Java · interview question
In the following code, what will happen if 'cartItems' is an empty array? for(int i = 0; i < cartItems.length; i++) { total += cartItems[i].price; }?
Multiple choiceMediumchapter-1-curatedpremiumcore-javaloops-and-iteration
for(int i = 0; i < cartItems.length; i++) { total += cartItems[i].price; }Answer and explanation
Correct answer
D. The loop will not execute
Why
If 'cartItems' is empty, 'cartItems.length' is 0, and the loop condition 'i < cartItems.length' is false initially, so the loop does not execute.
Test yourself on Core Java
A free test with instant, explained results. No account needed.
More Core Java questions
- In a console shopping cart application, why might you separate input handling from calculations?
- What happens if a subclass does not implement an abstract method from its superclass?
- Why would you choose to use a switch statement instead of multiple if-else statements for handling order status?
- Which part of the following code is responsible for avoiding an off-by-one error?
- Why can using overly complex methods in an e-commerce application become a problem in production code?
- How can a class implementing an interface with a default method call that method from within an overridden method?