When you work with a few thousands of items performance isn't a concern. But, in some extreme situations, when we have to travel over a few millions of items several times, performance will become a pain. In this article on dealing with collections in Java you will learn more about the forEach loop and how it compares to C style and Stream API.
#java #collections #junior #middle
https://dzone.com/articles/iteration-over-java-collections-with-high-performa