To understand recursion, you need to understand recursion. Recursion is very easy when you understand it and very difficult when you don't. Recursion is not used very often, but there are tasks for which it is a very convenient tool. You will learn about all this at level 34 of JavaRush: https://cdn.javarush.com/images/article/155cea79-acfd-4968-9361-ad585e939b82/original.png
