java 课后题2—2

import java.util.*;
public class Test{
    public static void main (String args[ ]){
       Scanner reader=new Scanner(System.in);
       long chengji=1;
       int m=0;
       while(reader.hasNextInt()){
           int x=reader.nextInt();
           m=m+1;
           chengji=chengji*x;
       }
       System.out.println(m+"个数的乘积为"+chengji);
    }
}