方法一：
public class coin{
public static void main(String args[]){
int n = 0;
int m = 0;
int len = 1000;
int str[] = new int[len];
for(int i = 0 ; i < len ; i ++){
str[i] = ( int )(Math.random()*2);
if(str[i] == 1 ){
n = n + 1;
}else{
m = m + 1;
}
}
System.out.println("正面朝上的次数："+n);
System.out.println("反面朝上的次数："+m);
}
}
方法二：
package org.lxh.demo.coin;
import java.util.Random;
public class coin{
public static void main(String args[]){
int n = 0;
int m = 0;
int len = 1000;
int str[] = new int[1000]; //创建一千个的数组
Random rad = new Random();
for(int i = 0 ; i < len ; i ++){
str[i] = rad.nextInt(2); //为一千个的数组赋值
if(str[i] == 1 ){
n = n + 1;
}else{
m = m + 1;
}
}
System.out.println("正面朝上的次数："+n);
System.out.println("反面朝上的次数："+m);
}
}