java - 如何添加月份和日期以进行简单的利率计算(Java)

Question

我正在为一项作业编写程序。
在那里，我陷入了如何为程序添加日期和月份的问题。

我已经可以将简单的利息转换成年，但是不能转换成几个月和几天：

  import java.util.Scanner;

  public class SimpleInterest {

    public static void main(String[] args) {
        double PAmount, ROI, TimePeriod, simpleInterset;
        Scanner scanner = new Scanner(System.in);

        System.out.print(" Please Enter the Principal Amount : ");
        PAmount = scanner.nextDouble();

        System.out.print(" Please Enter the Rate Of Interest : ");
        ROI = scanner.nextDouble();

        System.out.print(" Please Enter the Time Period in Years : ");
        TimePeriod = scanner.nextDouble();

        simpleInterset = (PAmount * ROI * TimePeriod) / 100;

        System.out.println("\n The Simple Interest for Principal Amount " + PAmount + " is = " + 
        simpleInterset);   
    }    
  }

Answer 1

只是分别询问他们，然后计算全球时间

System.out.print(" Please Enter the Principal Amount : ");
double pAmount = Double.parseDouble(scanner.nextLine());

System.out.print(" Please Enter the Rate Of Interest : ");
double rOI = Double.parseDouble(scanner.nextLine());

System.out.print(" Please Enter the Time Period in Years : ");
double years = Double.parseDouble(scanner.nextLine());
System.out.print("And months : ");
double months = Double.parseDouble(scanner.nextLine());
System.out.print("And days");
double days = Double.parseDouble(scanner.nextLine());

double timePeriod = years * months / 12 + days / 365;
double simpleInterset = (pAmount * rOI * timePeriod) / 100;

System.out.println("\n The Simple Interest for Principal Amount " + pAmount + " is = " + simpleInterset);

我建议：


如果不需要，请先定义变量再使用
使用nextLine并解析您需要的内容，您将避免使用return char感到惊讶
按照Java约定，使用lowerCamelCase命名变量