class LaunchChecklist {

    List<String> checks = Arrays.asList( 
        "Cabin Leak",
        // "Communication", // 휴스턴과 정말 통신하고 싶은가?
        "Engine",
        "Hull",
        // "Rover", // 내 생각에는 필요 없는데...
        "OxygenTank"
        //"Supplies"
    );

    Status prepareLaunch(Commander commander) { 
        for (String check : checks) {
            boolean shouldAbortTakeoff = commander.isFailing(check); 
            if (shouldAbortTakeoff) {
                //System.out.println("REASON FOR ABORT: " + item);
                return Status.ABORT_TAKE_OFF; 
            }
        }
        return Status.READY_FOR_TAKE_OFF; 
    }
}