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948天前/** |
* 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"); |
} |
} |
