编写程序模拟掷骰子游戏
说明:统计掷5000次,两个骰子的点数之和
写法一:
package com.java;
/**
* @Author: mzy
* @Date: 2019-1-22 14:22
*/
public class DiceGame {
/**
* 编写程序模拟掷骰子游戏
* 说明:统计掷5000次,两个骰子的点数之和
*/
public static void main(String[] args) {
int[] a = {0,0,0,0,0,0,0,0,0,0,0};
for (int i = 0; i <5000; i++) {
int x=(int)(Math.random()*6);x=x+1;
int y=(int)(Math.random()*6);y=y+1;
int z=x+y;
if (z==2) {a[0]++;}
else if (z==3) {a[1]++;}
else if (z==4) {a[2]++;}
else if (z==5) {a[3]++;}
else if (z==6) {a[4]++;}
else if (z==7) {a[5]++;}
else if (z==8) {a[6]++;}
else if (z==9) {a[7]++;}
else if (z==10) {a[8]++;}
else if (z==11) {a[9]++;}
else if (z==12) {a[10]++;}
}
System.out.println("2:"+a[0]+"次 ");
System.out.println("3:"+a[1]+"次 ");
System.out.println("4:"+a[2]+"次 ");
System.out.println("5:"+a[3]+"次 ");
System.out.println("6:"+a[4]+"次 ");
System.out.println("7:"+a[5]+"次 ");
System.out.println("8:"+a[6]+"次 ");
System.out.println("9:"+a[7]+"次 ");
System.out.println("10:"+a[8]+"次 ");
System.out.println("11:"+a[9]+"次 ");
System.out.println("12:"+a[10]+"次 ");
}
}
写法二:
public class DiceGame2 {
/**
* @编写程序模拟掷骰子游戏
*/
public static void main(String[] args) {
int[] a = new int[11];//老师说已初始化
Random r=new Random();
for (int i = 1; i <=5000; i++) {
int n1=r.nextInt(6)+1;
int n2=r.nextInt(6)+1;
int z=n1+n2;
a[z-2]++;
}
for (int i = 0; i < a.length; i++) {
System.out.println(i+2+":"+a[i]+"次");
}
}
}