Question

编写一个java程序，接受带有描述的无限双重（可变）费用记录。

控制台O / P中的平均时间列表，并累计总条目数。

这是我到目前为止的代码

public class Quizz {

    public double expense;
    public double totalExpenses;

    public static void main(String[] args) {

        Quizz expenses = new Quizz();
        Scanner intScan = new Scanner(System.in);
        do
        {
            System.out.println("Enter an expense");
            expenses.expense = intScan.nextInt();
        }
        while (proceed);

        System.out.println("done counting");
    }

}

Answer 1

这里的类定义相当奇怪。你真的不需要一个类，只需要一个主要的方法来做你想做的事情：

    Scanner doubleScan = new Scanner(System.in);
    double runningTotal = 0;
    do {
        System.out.print("Enter an amount (-1 to exit): ");
        double expense = doubleScan.nextDouble();
        if (expense != -1) runningTotal += expense;
    } while (expense != -1);
    System.out.println("Total: " + runningTotal);

循环！无限输入并跟踪输入的输入数量

1 个答案: