java - 获取任意值(value)的纸币和硬币的数量

Question

我想制作一个小系统，可以为我返回任何值(value)的最佳纸币和硬币数量。

这是我的代码:

public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(
            new InputStreamReader(System.in));
    double amount = Double.parseDouble(br.readLine());
    if (amount > 0 && amount < 1000000.00) {
        // ############################# BILLS ############################
        double rest100 = amount / 100;
        double rest50 = amount % 100;
        double rest20 = rest50 % 50;
        double rest10 = rest20 % 20;
        double rest5 = rest10 % 10;
        double rest2 = rest5 % 5;

        // ############################ COINS ############################            
        double rest01 = rest2 % 2;
        double rest050 = rest01 % 1;
        double rest025 = rest050 % .5;
        double rest010 = rest025 % 25;
        double rest005 = rest010 % .1;
        double rest001 = rest005 % .05;

        System.out.println("BILLS:\n"
            + (int) rest100
            + " bill(s) of 100.00\n"
            + (int) rest50 / 50
            + " bill(s) of 50.00\n"
            + (int) rest20 / 20
            + " bill(s) of 20.00\n"
            + (int) rest10 / 10
            + " bill(s) of 10.00\n"
            + (int) rest5 / 5
            + " bill(s) of 5.00\n"
            + (int) rest2 / 2
            + " bill(s) of 2.00\n"
            + "COINS:\n"
            + (int) (rest01 / 1)
            + " coin(s) of 1.00\n"
            + (int) (rest050 / .5)
            + " coin(s) of 0.50\n"
            + (int) (rest025 / .25)
            + " coin(s) of 0.25\n"
            + (int) (rest010 / .1)
            + " coin(s) of 0.10\n"
            + (int) (rest005 / .05)
            + " coin(s) of 0.05\n"
            + (int) (rest001 / .01)
            + " coin(s) of 0.01");
    }
}

嗯，这几乎是正确的，钞票运行完美，我的问题是硬币。

以下是一些输入:

• 576.73//正确打印
• 8.45//打印不正确
• 9.45//打印错误，看下面:

实际输出:

BILLS:
0 bill(s) of 100.00
0 bill(s) of 50.00
0 bill(s) of 20.00
0 bill(s) of 10.00
1 bill(s) of 5.00
2 bill(s) of 2.00
COINS:
0 coin(s) of 1.00
0 coin(s) of 0.50
1 coin(s) of 0.25
4 coin(s) of 0.10
0 coin(s) of 0.05
4 coin(s) of 0.01

预期输出:

BILLS:
0 bill(s) of 100.00
0 bill(s) of 50.00
0 bill(s) of 20.00
0 bill(s) of 10.00
1 bill(s) of 5.00
2 bill(s) of 2.00
COINS:
0 coin(s) of 1.00
0 coin(s) of 0.50
1 coin(s) of 0.25
2 coin(s) of 0.10
0 coin(s) of 0.05
0 coin(s) of 0.01

PS:我不会发布所有预期的输出，因为这会让问题比现在更大，但如果你需要，我可以发布。提前致谢。

Answer 1

只需乘以 100 并以美分为单位进行计算即可。