package Javamianxiangduixiangjiaocheng;

import java.util.Scanner;

public class HelloWorld {

/**

* @param args

*/

public static void main(String[] args)

{

System.out.println("请输入若干个数，每个输入一个数回车确认。");

System.out.println("最后输入数字零作为确认");

Scanner reader=new Scanner(System.in);

double sum=0;

int m=0;

double x=reader.nextDouble();

while(x!=0)

{

m=m+1;

sum=sum+x;

x=reader.nextDouble();

}

System.out.printf("%d,%f",m +"个数的和为"+sum);

System.out.println(m+"个数的平均值为"+sum/m);

//System.out.printf("%d,%f",12,12.23);

}

}