public class SnakeEyes { public static void main (String[] args) { final int ROLLS = 500; int num1, num2, count = 0; Die die1 = new Die();《=====其实主要是不明白这两句是干啥的=。= Die die2 = new Die(); for (int roll=1; roll <= ROLLS; roll++) { num1 = die1.roll();还有这句 num2 = die2.roll(); if (num1 == 1 && num2 == 1) count++; } System.out.println ("Number of rolls: " + ROLLS); System.out.println ("Number of snake eyes: " + count); System.out.println ("Ratio: " + (float)count / ROLLS); } }