java语言程序设计第十版（Introduce to java 10th） 课后习题 chapter6-32

java语言程序设计第十版（Introduce to java 10th） 课后习题 chapter6-32

自己纯手工，欢迎讨论package chapter6;

public class T32 {

public static void main(String[] args) {
int win = 0;
for(int i=0;i<1000000;i++){
win+=rollResult();
}
System.out.println("You win "+win+" times!");
}

public static int roll() {
int num1 = (int) (Math.random() * 6 + 1);
int num2 = (int) (Math.random() * 6 + 1);
// System.out.println("You rolled " + num1 + "+" + num2 + "=" + (num1 + num2));
return num1 + num2;
}

public static int rollResult() {
int num = roll();
if (num == 2 || num == 3 || num == 12) {
// System.out.println("You lose.");
return 0;
} else if (num == 7 || num == 11){
// System.out.println("You win!");
return 1;
}
else {
// System.out.println("point is " + num);
while (true) {
int num1 = roll();
if (num1 == 7) {
// System.out.println("You lose.");
return 0;
} else if (num1 == num) {
// System.out.println("You win!");
return 1;
}
}

}
}

}