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);
}
}


//java/8168