收银机退还余额加上次要付款的变更(Cash Register Returns Amount Remaining Plus Change on Secondary Payment)

我以为我有这个正确的，但是当我尝试在我的“收银机”中拆分付款时，它在第二次付款和第一次付款时都返回了正确的更改，但是在第二次付款时，它包括我放置的第三个if语句，并且它也给出了改变。

例如：

Price: $100.00 Sales tax = $6.00 Total amount due = $106.00 Payment = $50.00 Amount Remaining: $56.00 Payment $50.00 Amount Remaining: $6.00 Your Change Is: $44.00

这是有问题的违规代码段。任何帮助表示赞赏。

public void makePayment (double payment){ if (payment < 0){ System.out.println("Insufficient Funds. Please Use Another Method Of Payment"); } if (payment < currentAmountDue ){ currentAmountDue = currentAmountDue - payment; System.out.println("Amount Remaining: " + fmt.format(currentAmountDue)); dailySales = currentAmountDue + dailySales; } if (payment > currentAmountDue){ dailySales = dailySales + currentAmountDue; currentAmountDue = payment - currentAmountDue; System.out.println("Your Change Is: " + fmt.format(currentAmountDue)); numberOfCustomers = numberOfCustomers + 1; dailySales = currentAmountDue + dailySales; } if (payment == currentAmountDue){ dailySales = dailySales + currentAmountDue; numberOfCustomers = numberOfCustomers + 1; currentAmountDue = 0; System.out.println("Thank you for your money!"); } }

I thought I had this correct, but when I tried splitting the payments in my "Cash Register", it returned the correct change on both the second and first payments, but on the second payment it includes the third if statement I placed, and it gives the change as well.

For example:

Price: $100.00 Sales tax = $6.00 Total amount due = $106.00 Payment = $50.00 Amount Remaining: $56.00 Payment $50.00 Amount Remaining: $6.00 Your Change Is: $44.00

Here is the offending code segment in question. Any help is appreciated.

public void makePayment (double payment){ if (payment < 0){ System.out.println("Insufficient Funds. Please Use Another Method Of Payment"); } if (payment < currentAmountDue ){ currentAmountDue = currentAmountDue - payment; System.out.println("Amount Remaining: " + fmt.format(currentAmountDue)); dailySales = currentAmountDue + dailySales; } if (payment > currentAmountDue){ dailySales = dailySales + currentAmountDue; currentAmountDue = payment - currentAmountDue; System.out.println("Your Change Is: " + fmt.format(currentAmountDue)); numberOfCustomers = numberOfCustomers + 1; dailySales = currentAmountDue + dailySales; } if (payment == currentAmountDue){ dailySales = dailySales + currentAmountDue; numberOfCustomers = numberOfCustomers + 1; currentAmountDue = 0; System.out.println("Thank you for your money!"); } }