TQC+ JAVA

JPA03.java

import java.util.Scanner;
public class JPA03 {
    public static void main(String[] args) {
        int total = 0;
        int s = 0;
        int count = 0;
        double average = 0.0;
        Scanner input = new Scanner(System.in);
        System.out.print("Please enter meal dollars or enter -1 to stop: ");

		int dollar = input.nextInt();
		while(true) {
			if(dollar == -1) {
				break;
			}
			count += 1;
			total += dollar;
			System.out.print("Please enter meal dollars or enter -1 to stop: ");
			dollar = input.nextInt();
		}

		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 \r\n", count, average);
    }
}