updated my savings account test to use the new constructor

Author: enyabuti

lesson_17/bank/bank_app/src/main/java/com/codedifferently/lesson17/bank/SavingsAccount.java

@@ -3,7 +3,7 @@
 import java.util.Set;
 
 /** Represents a savings account. */
-public class SavingsAccount extends CheckingAccount {
+public class SavingsAccount extends BankAccount {
 
   public SavingsAccount(String accountNumber, Set<Customer> owners, double initialBalance) {
     super(accountNumber, owners, initialBalance);
@@ -15,6 +15,6 @@ public SavingsAccount(String accountNumber, Set<Customer> owners, double initial
    * @return The account number.
    */
   public void depositFunds(Check check) {
-    throw new UnsupportedOperationException("Cannot deposit a check into a savings account");
+    throw new UnsupportedOperationException("Cannot withdraw from savings account.");
   }
 }