JAVA，求解

(a) Write a program that simulates rolling a pair of dice until the total on the dice comes up to be a given number (one of the possible totals: 2, 3, ..., 12) . The number that you are rolling for is entered from the keyboard. The number of times you have to roll the dice is printed out.
(b) Rewrite your program such that it computes and prints the number of rolls it takes to get snake eyes. (Snake eyes means that the total showing on the dice is 2.)

我有中文版 的API

题不难，可以自己尝试下写：

编写一个程序,模拟轧制一对骰子掷骰子的总额之前出现被给定的数字(其中的一个可能的总数;(二)、(三)、……,12)。这个号码,你是轧制等从键盘输入。你拥有的次数来碰碰运气是打印出来。

正因为如此,重写你的程序计算并打印数量的滚花到蛇的眼睛。(蛇眼意味着总出现在骰子是2。)