Common interview questions in Java collection of school recruitment interview

Interview summary The main questions in this section are ArrayList and HashMap. HashMap this piece of source code must be understood. In the eyes of some interviewers, it is a necessary foundation. Question summary and answer sorting (for reference only) 1. The difference between ArrayList and LinkedList (both thread unsafe) ArrayList i ...

Posted on Sat, 25 Sep 2021 02:02:54 -0400 by phrygius

This is probably the most detailed explanation of ArrayList!

Hand tear ArrayList source code The article was first published in GitHub open source project: Java supernatural Road Introduction to ArrayList ArrayList is an array list. Its main underlying implementation is the Object array, but compared with the array in Java, its capacity can change dynamically and can be regarded as a dynamic arra ...

Posted on Sun, 12 Sep 2021 01:35:43 -0400 by DF7