Core Java · interview question
In an e-commerce application, you have a method double calculateTotalPrice(double[] prices). Which of the following is a good reason to use this method?
Multiple choiceMediumchapter-1-curatedpremiumcore-javamethods
double calculateTotalPrice(double[] prices) { double total = 0; for(double price : prices) { total += price; } return total; }Answer and explanation
Correct answer
D. To calculate the sum of all product prices in the cart
Why
The method calculateTotalPrice is designed to sum up all the prices in the given array, helping to determine the total cost of items in a cart. This is a common requirement in an e-commerce workflow to know how much customers need to pay.
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?