一种编码练习使用爪哇8试图做相同的求和循环的多个方式。编写一个函数，用于在给定的列表中使用一个循环，每个循环，新的8个流，一个循环和递归。-A coding practice using Java 8 trying to do the same number of ways summed cycle. Write a function that is used to use a loop in a given list, each cycle, the new eight streams, one cycle and recursion.