第五章第三十九題（金融應用：求銷售總額）(Financial application: find the sales amount)

• *5.39（金融應用：求銷售總額）假設你正在某百貨商店開始銷售工作。你的工資包括基本工資和提成?；竟べY是5000美元。使用下面的方案確定你的提成率。
  你的目標是一年掙30000美元。編寫程序找出為掙到30000美元，你所必須完成的最小銷售額。

銷售額提成率0.01~5000美元8%5000.01~10000美元10%10000.01美元及以上12%

*5.39 (Financial application: find the sales amount) You have just started a sales job in a department store. Your pay consists of a base salary and a commission. The base salary is $5,000. The scheme shown below is used to determine the commission rate.
Your goal is to earn $30,000 a year. Write a program to find the minimum sales you have to generate in order to make $30,000.

Sales AmountCommission Rate$0.01~$50008%$5000.01~1000010%$10000.01and above12%

• 參考代碼：

package chapter05;

public class Code_39 {
    public static void main(String[] args) {
        final int BASE_SALARY = 5000;
        int salesAmount = 10000;
        double mySalary = 0;
        do {
            mySalary = BASE_SALARY + 5000 * 0.08 + 5000 * 0.10 + (salesAmount-10000) * 0.12;
            salesAmount++;
        } while (mySalary < 30000);
        System.out.printf("The minimum sales you have to generate is %d", salesAmount);
    }
}

• 結果顯示：

The minimum sales you have to generate is 210835
Process finished with exit code 0