Java程序：如何显示正确的支付金额？

Question

    import java.text.DecimalFormat;

import java.util.Scanner;

public class PENNIES {

       public static void main(String[] args)
    {

  Scanner keyboard = new Scanner (System.in);
  DecimalFormat formatter = new DecimalFormat("0.00");

    int day, DaysWorked; double finalsalary, currentpay; 


    finalsalary = 0;
    currentpay = 0.01;


    System.out.println("How many days did you work?");
    DaysWorked = keyboard.nextInt();

    if (DaysWorked < 1)
{System.out.println("Invalid input: " + DaysWorked + ", please try again!");

    }

    System.out.println("Days Worked                         Money Earned");
    System.out.println("_______________________________________________");



    for (day = 1; day <= DaysWorked; day++)
    {
      currentpay = currentpay * 2;
      System.out.println(  day + "\t \t \t \t" + currentpay);
      finalsalary += currentpay;

    }
System.out.println("Your total salary is  \n $" + formatter.format (+ finalsalary));



  }

这是我的最后一个节目，谢谢大家：

import java.text.NumberFormat; //Formats the decimal (cents)
import java.util.*;

public class PENNIES 
{

   public static void main(String[] args)
   {
    int day, DaysWorked, run = 0; double finalsalary, currentpay;  
    do {
    Scanner keyboard = new Scanner (System.in);
    NumberFormat AmericanMoney = NumberFormat.getCurrencyInstance(Locale.US); //Converts final salary into US dollars

    finalsalary = 0;
    currentpay = 0.01;

    System.out.println("How many days did you work?");
    DaysWorked = keyboard.nextInt();

    if (DaysWorked < 1){ //User cannot input less than 1 day
    System.out.println("Invalid input: " + DaysWorked + ", please try again!");

    }

    System.out.println("Days Worked                      Money Earned"); //Displays a table with results
    System.out.println("_______________________________________________");



    for (day = 1; day <= DaysWorked; day++) //Loops the currentpay with the respective day of work
    {      
      System.out.println(  day + "\t \t \t \t" + currentpay);
      finalsalary += currentpay;      
      currentpay = currentpay * 2;

    }
    System.out.println("Your total salary is  \n " + AmericanMoney.format (+ finalsalary) + "\n");

    }
    while (run < 1); //Restarts the program automatically



 }

 }

Answer 1

currentpay = 0.01;

currentpay = currentpay * 2;

System.out.println(  day + "\t \t \t \t" + currentpay);

System.out.println(  day + "\t \t \t \t" + currentpay);
finalsalary += currentpay;
currentpay = currentpay * 2;