求和及求平均-while循环语句的应用-2022-11-2

package scanner;

import java.util.Scanner;

public class Demo04 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double sum = 0;
        int m=0;
        while (scanner.hasNextDouble()){
            double x=scanner.nextDouble();
            sum=sum+x;
            m=m+1;
            System.out.println("你输入了第"+m+"个数据，然后当前结果为"+sum);
        }
        System.out.println("共计输入了"+m+"个数据，总和为"+sum);
        System.out.println("共计输入了"+m+"个数据，平均值为"+sum/m);

    }
}