304餐點費用

/******
檔名：JPA03.java
題目：TQC+ JAVA6物件導向程式設計 參考答案
時間：2015/06
作者：fang shi mai
******/
import java.util.Scanner;

public class JPA03
{
    public static void main(String[] args)
    {
        int total = 0;
        int s = 0;
        int count = 0;
        double average;
        
        System.out.print("Please enter meal dollars or enter -1 to stop: ");
        
        Scanner sc=new Scanner(System.in);
        while(true)
        {
            s=sc.nextInt();
            if(s==-1)
                break;
            total+=s;
            count++;
            System.out.print("Please enter meal dollars or enter -1 to stop: ");
        }
        average=(double)total/(double)count;
        
        System.out.println("餐點總費用:"+total);
        System.out.printf(" %d 道餐點平均費用為: %.2f %n",count,average);
    }
}