java - 退款 FOR 循环无法正常工作

Question

我被这个 Java 家庭作业问题困扰:

Write a new method, Refund, that simulates the refunding of any remaining credits in multiples of 10 by repeatedly printing out the balance and decrementing by 10 each time until there is less than 10 credits remaining. Then begin decrement the balance by 1 credit repeatedly whilst printing to screen until the balance is zero. For example, if the current balance is 33 and Refund is called, the output to screen will look like this:

Balance: 33
Balance: 23
Balance: 13
Balance: 3
Balance: 2
Balance: 1
Balance: 0

它适用于任何数字，除了以“0”结尾的数字，即 10,30,100 等。

这是我的退款方法:

public void Refund(){
    System.out.println("You have selected the refund option:");

    for(int counter=(int)balance;counter>=10;counter-=10){
        System.out.println("Balance: £"+balance);
        balance-=10;
    }

    for(int counter=(int)balance;counter>0;counter-=1){
        System.out.println("Balance: £"+balance);
        balance-=1;
    }

    System.out.println("Balance: £"+balance);
}

基本上，我可以让它处理 10,30 等数字的唯一方法就是这样做

for(int counter=(int)balance-10;counter>=10;counter-=10){

以下声明(退款方式):

for(int counter=(int)balance;counter>=10;counter-=10){
System.out.println("Balance: £"+balance);
balance-=10;
}

但是，现在我已经这样做了，10,30,100 可以工作，但任何其他数字，即 33,54,62 等都不起作用!有什么建议吗？

Answer 1

尝试这样的事情。 (未测试)

while(balance != 0) {
    System.out.println("The balance: " + balance);
    if(balance >= 10)
        balance -= 10;
    else
        balance--;
}