interest.java

来自「Java程序设计技巧与开发实例附书源代码。」· Java 代码 · 共 25 行

import java.text.DecimalFormat;
public class Interest
{  final static double RATE  = 6.5;
   final static int  YEARS = 10;

   static double interest = 0.0;
   static double amount   = 10000.0;

   public static void computeInterest()
   {  interest = amount * RATE / 100;
      amount += interest;
   }
   public static void main(String args[])
   {  DecimalFormat formatTool = new DecimalFormat("#,###.00");
      for (int i = 1; i <= YEARS; i++)
      {  computeInterest();
         System.out.print("Year " + i);
         System.out.print("\tInterest: " + formatTool.format(interest));
         System.out.println("\tTotal: " + formatTool.format(amount));
      }
   }
}