Recursion is a frequently adopted pattern for solving some sort of algorithm problems which need to divide and conquer a big issue and solve the smaller but the same issue first. For example, calculating fibonacci  accumulating sum and calculating factorials.In these kinds of issues, recursion is more straightforward than their loop counterpart. Furthermore, recursion may need less code and looks more concise.For example, let's calculate sum of a set of numbers starting with 0 and stopping at N where N might be a large number. The loop way is quite simple for this issue.private stati...