| 1 | /** |
| 2 | This program computes how long it takes for an investment |
| 3 | to double. |
| 4 | */ |
| 5 | public class InvestmentTest |
| 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 | } |