java - Java:获取变量输出的值的总和

很抱歉，我对自己的头衔感到困惑，但是我是编程的极端初学者。我的家庭作业是显示一个人每天加倍工作的天数（第1天：$ 1.00，第2天：$ 2.00，第3天：$ 4.00等）。我必须显示他们每天所赚的薪水以及他们每天所赚的总薪水。

我无法弄清楚我如何获得所有工作日中所赚取的全部工资之和。救命？

for ( int daysWorked = 1; daysWorked <= numDaysWorked; daysWorked++) {
    System.out.println("Pay for day #" + daysWorked + ": " + formatter.format(amount));

    amount =  daysWorked * 2;

    totalPay = ?? ;
}
System.out.println("\nTOTAL PAY FOR " + numDaysWorked + " DAYS: " + formatter.format(totalPay));

最佳答案

double amount = 1; // make sure it initially equals 1

for (int daysWorked = 1; daysWorked <= numDaysWorked; daysWorked++) {

    System.out.println("Pay for day #" + daysWorked + ": " + formatter.format(amount));

    totalPay += amount; // add the amount value each time to the totalPay variable
    amount *= 2; // it doubles so just double it every loop
}

System.out.println("\nTOTAL PAY FOR " + numDaysWorked + " DAYS: " + formatter.format(totalPay));