import java.util.Scanner;
public class xxx
{
public static void main(String args[])
{
Scanner s = new Scanner(System.in);
double sum =0;int m=0;
while(s.hasNextDouble())
{
double x = s.nextDouble(); assert (m>=0 && m<=100):"Illegal score data !!";
m=m+1;sum=sum+x; }System.out.printf("%d个数的和为%f\n",m,sum);System.out.printf("%d个数的平均值为%f\n",m,sum/m); }}
JAVA课程7 加入断言语句
最新推荐文章于 2024-05-11 11:43:50 发布