      1  import java.util.Arrays;

      2

      3  public class ComparableTester

      4  {

      5     public static void main(String[] args)

      6     {

      7        BankAccount[] accounts = new BankAccount[3];

      8        accounts[0] = new BankAccount(10000);

      9        accounts[1] = new BankAccount(0);

     10        accounts[2] = new BankAccount(2000);

     11        Arrays.sort(accounts);

     12        for (int i = 0; i < accounts.length; i++)

     13        {

     14  	 System.out.print(accounts[i].getBalance() + " ");

     15        }

     16        System.out.println();

     17        System.out.println("Expected: 0.0 2000.0 10000.0");

     18     }

     19  }