      1  /**

      2     This program computes how long it takes for an investment

      3     to double.

      4  */

      5  public class InvestmentRunner

      6  {

      7     public static void main(String[] args)

      8     {

      9        final double INITIAL_BALANCE = 10000;

     10        final double RATE = 5;

     11        Investment invest = new Investment(INITIAL_BALANCE, RATE);

     12        invest.waitForBalance(2 * INITIAL_BALANCE);

     13        int years = invest.getYears();

     14        System.out.println("The investment doubled after "

     15              + years + " years");

     16     }

     17  }