synchronized void enterLaneB(Car car) throws InterruptedException {
while (currentWeightA + currentWeightB + car.getWeight() >= maximumWeight || Math.abs(currentWeightA - currentWeightB + car.getWeight()) >= maximumDifference) {
wait();
}
currentWeightB += car.getWeight();
notifyAll();
}
synchronized void exitLaneB(Car car) throws InterruptedException {
while (Math.abs(currentWeightA - currentWeightB) >= maximumDifference) {
wait();
}
currentWeightB -= car.getWeight();
notifyAll();
}
