Java algorithm interview question: recursive algorithm question 2 the first 1 person 10, 2nd than the 1th People's Congress 2 years old, in turn, recursive, please use recursion to calculate how big the 8th person?

 PackageCom.swift; Public classDigui_return { Public Static voidMain (string[] args) {/** Recursive algorithm question 2 the first 1 person 10, 2nd than the 1th People's Congress 2 years old, in turn recursive, please use recursion to calculate how big the 8th person? */        intnum = 8; System.out.println ("The 8th person's age is" +Old (num)); }     Public Static intOldintnum) {        if(num = = 1) {            return10; } Else {            return2 + old (--num); }    }}

Java algorithm interview question: recursive algorithm question 2 the first 1 person 10, 2nd than the 1th People's Congress 2 years old, in turn, recursive, please use recursion to calculate how big the 8th person?