第二章第二十题（金融应用：计算利息）(Financial application: calculate interest)
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*2.20（金融应用：计算利息）如果知道余额和年利率百分比，就可以使用下面的公式计算下个月的利息：
利息 = 余额 * （年利率百分比 / 1200）
编写程序，读取余额和年利率百分比，打印下个月的利息。下面是一个运行示例：
Enter balance and interest rate (e.g.，3 for 3%)：1000 3.5
The interest is 2.91667
*2.20(Financial application: calculate interest) If you know the balance and the annual percentage interest rate, you can compute the interest on the next monthly payment using the following formula:
**interest =****balance * (annualInterestRate/1200) **
Write a program that reads the balance and the annual percentage interest rate and displays the interest for the next month. Here is a sample run:
Enter balance and interest rate (e.g.，3 for 3%)：1000 3.5
The interest is 2.91667
下面是参考答案代码:
import java.util.*;
public class CalculateInterestQuestion20 {
public static void main(String[] args) {
double Interest,Balance,AnnualInterestRate;
System.out.print("Enter balance and interest rate "
+ "(e.g., 3 for 3%) : ");
Scanner BalanRateInput = new Scanner(System.in);
Balance = BalanRateInput.nextDouble();
AnnualInterestRate = BalanRateInput.nextDouble();
Interest = Balance * (AnnualInterestRate / 1200);
System.out.println("The interest is " + Interest);
BalanRateInput.close();
}
}
AI写代码运行效果：
注：编写程序要养成良好习惯
如：1.文件名要用英文，具体一点
2.注释要英文
3.变量命名要具体，不要抽象（如:a,b,c等等），形式要驼峰化
4.整体书写风格要统一（不要这里是驼峰，那里是下划线，这里的逻辑段落空三行，那里相同的逻辑段落空5行等等）
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