我用 Java 編寫了這段代碼Runnable，但我的教授希望我添加AtomicInteger，以便不存在線程干擾。我該如何去做呢？我嘗試查找如何在代碼中使用它的示例，但我不知道在這種情況下該怎么做。public class GarageWorker {    public static void main(String[] args) {        System.out.println("We are going to count the vehicles in the garage");        System.out.println();        System.out.println("There are 50 vehicles in the garage to start with!");        System.out.println();        GarageWorker garage = new GarageWorker(50);        Runnable vehicleEnter = garage.new Enter();        Runnable vehicleExit = garage.new Exit();        Thread thread1 = new Thread(vehicleEnter);        Thread thread2 = new Thread(vehicleExit);        thread1.start();        thread2.start();    }    public GarageWorker(int initialCarCount) {        counter = initialCarCount;    }    public int counter;    public class Enter implements Runnable {        public Enter() {        }        public int increaseVehicleCount() {            return ++counter;        }        public void run() {            while (counter < 100) {                System.out.println("One vehicle entered the garage now there are " + increaseVehicleCount());            }        }    }    public class Exit implements Runnable {        public Exit() {        }        public int decreaseVehicleCount() {            return --counter;        }        public void run() {            while (counter > 0) {                System.out.println("One vehicle left the garage now there are " + decreaseVehicleCount());            }        }    }}代碼運行良好，但我的教授希望我將AtomicInteger類實現到代碼中。