public static void run() throws Exception {
Account account1 = null, account2 = null;
System.out.println("*** Creating account 1");
MementoTransaction command = new AccountCreation("Owner 1");
account1 = execute(command);
System.out.println("*** Creating account 2");
command = new AccountCreation("Owner 2");
account2 = execute(command);
System.out.println("*** Depositing 500 into account 1");
command = new Deposit(account1, 500);
execute(command);