Java *2.21（财务应用：计算未来投资值）编写程序，读取投资总额、年利率和年数，然后使用下面的公式显示未来投资回报金额：

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我是靠谱客的博主难过小蚂蚁，这篇文章主要介绍Java *2.21（财务应用：计算未来投资值）编写程序，读取投资总额、年利率和年数，然后使用下面的公式显示未来投资回报金额：，现在分享给大家，希望可以做个参考。

未来投资回报金额 = 投资总额 x（1+月利率）^ (年数 x 12)

例如：如果输入的投资金额为1000，年利率为3.25%，年数为1，那么未来投资回报金额为1032.98。

下面是一个运行示例：

Enter investment amount（输入投资金额）t:1000.56
Enter annual interest rate in percentage（输入百分比的年利率）: 4.25
Enter the number of the years（输入的年数）: 1

The accumulated value is $1032.98

复制代码

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package Chapter_03;

import java.util.Scanner;

public class Code2_21 {
public static void main(String[] args) {
	System.out.print("Enter investment amount:");
	Scanner input = new Scanner(System.in);
	double amount = input.nextDouble();
	System.out.print("Enter annual interest rate in percentage:");
	double rade = input.nextDouble() / (100.0 * 12);
	System.out.print("Enter the number of the years:");
	double year = input.nextInt();
	double value = amount * Math.pow(1 + rade,year * 12);
	System.out.println("The accumulated value is $" + String.format("%.2f",value));
}
}

输出
复制代码Enter investment amount:1000.56 Enter annual interest rate in percentage:4.25 Enter the number of the years:1 The accumulated value is $1043.92
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Enter investment amount:1000.56
Enter annual interest rate in percentage:4.25
Enter the number of the years:1
The accumulated value is $1043.92