[java]代码库/**
* Dice Write a program that simulates rolling two dice using the following
* steps: 1. Prompt the user for the number of sides for two dice. 2. “Roll” the
* dice three times by generating a random number between 1 (inclusive) and the
* number of sides (inclusive). 3. Keep track of the sum of the rolls for each
* die and output the sum and average for each die.
*
* Sample Output: How many sides does die 1 have? 6 How many sides does die 2
* have? 20 Die 1 first roll = 5. Die 2 first roll = 14. Die 1 second roll = 1.
* Die 2 second roll = 20. Die 1 third roll = 3. Die 2 third roll = 9. Die 1
* rolled a total of 9 and rolled 3 on average. Die 2 rolled a total of 43 and
* rolled 14.333 on average.
*
* @author jianfeng
*
*/
public class Dice {
public static void main(String[] args) {
int[][] dice = new int[3][2];
int first = 6;
int second = 20;
for (int i = 0; i < 3; i++) {
dice[i][0] = (int) ((Math.random() * first) + 1); // 第一个骰子三次滚动值
dice[i][1] = (int) ((Math.random() * second) + 1);
; // 第二个骰子三次滚动值
}
// 计算总数
int sum1 = 0;
int sum2 = 0;
for (int i = 0; i < 3; i++) {
sum1 += dice[i][0];
sum2 += dice[i][1];
}
// 计算平均值
float avg1 = (float) sum1 / 3;
float avg2 = (float) sum2 / 3;
// 输出
System.out.println("How many sides does die 1 have?" + first);
System.out.println("How many sides does die 2 have?" + second);
System.out.println("Die 1 first roll = " + dice[0][0]);
System.out.println("Die 2 first roll = " + dice[0][1]);
System.out.println("Die 1 second roll = " + dice[1][0]);
System.out.println("Die 2 second roll = " + dice[1][1]);
System.out.println("Die 1 third roll = " + dice[2][0]);
System.out.println("Die 2 third roll = " + dice[2][1]);
System.out.println("Die 1 rolled a total of " + sum1 + " and rolled "
+ avg1 + " on average");
System.out.println("Die 2 rolled a total of " + sum2 + " and rolled "
+ avg2 + " on average");
}
}
[代码运行效果截图]
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