试图从方法java调用构造函数

Question

我正在尝试调用构造函数返回方法中的结果

//constructor 2
/**
 * @param parker the car that is parked
 * @param parkee the parking meter reading the car
 */
private ParkingTicket( Car parker, ParkingMeter parkee){
    //retrieves the values for license plate, minutes parked, and minutes parked in the class
    this(parker.getLicensePlate(),
        parker.getMinutesParked(),
        parkee.getMinutesPaid()
    );
}

这是我试图返回构造函数的方法。 如果停车时间超过支付的分钟数，我想创建一张新的停车票。

//checks if a parking ticket will be issued
public static Integer checkParking(){
    //creates a static method of the minutesPaid non-static method
    //from the ParkingMeter class
    ParkingMeter parkingMeter = new ParkingMeter();
    parkingMeter.getMinutesPaid();

    //creates a static method of the minutesParked non-static method
    //from the Car class
    Car car = new Car();
    car.getMinutesParked();

    if (parkingMeter.getMinutesPaid() > car.getMinutesParked()){
        new ParkingTicket( parker, parkee);}


    else return null;            
}