Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I’m puzzled by the return values on Java’s Lists.
I would have expected operations such as add and remove to return the index of the added or removed element, instead they just return true on success.
While with add I may get this id calling size-1 (guess it’s not expensive), with remove I have to call indexOf, which looks like a waste to me.
Am I missing something?
I think the explanation is that add and remove are on the Collection interface, so they apply to
MapSet as well as List based data structures.