This commit is contained in:
Alexander Bachinger
2025-05-16 15:19:08 +02:00
parent 9846a505da
commit 37f7dd75ff
4 changed files with 17 additions and 15 deletions

View File

@@ -17,10 +17,10 @@ public class Car extends Thread {
public void run() {
try {
Thread.sleep(Variables.CROSSING_TIME);
guard.leaving();
guard.leavingBridge();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
}
}

View File

@@ -9,19 +9,20 @@ public class Generator extends Thread {
System.out.println("Statistics:");
generator.start();
guard.start();
if (Variables.SHOW_CARS) Bridge.main(args);
}
@Override
public void run() {
while (guard.waitingCars.size() <= Variables.MAX_WAITING_CARS) {
try {
//noinspection BusyWait
Thread.sleep((int) (Math.random() * Variables.MAX_CAR_INTERVAL + 1) * 1000L);
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
Car car = new Car(guard, carIndex++);
guard.arriving(car);
guard.arrivingOnBridge(car);
}
}
}

View File

@@ -10,17 +10,17 @@ public class Guard extends Thread {
public final List<Car> waitingCars = new ArrayList<>();
public final Set<Integer> waitingTimes = new HashSet<>();
public synchronized void leaving() {
public synchronized void leavingBridge() {
carsOnBridge--;
}
public synchronized void arriving(Car car) {
public synchronized void arrivingOnBridge(Car car) {
this.waitingCars.add(car);
notify(); // Weckt den Guard auf
notify(); // Wacke up the Guard thread
}
public synchronized void crossing(Car car) {
public synchronized void crossingBridge(Car car) {
carsOnBridge++;
this.waitingCars.remove(car);
car.start();
@@ -43,7 +43,7 @@ public class Guard extends Thread {
while (this.waitingCars.size() <= Variables.MAX_WAITING_CARS) {
synchronized (this) {
if (carsOnBridge < Variables.MAX_CARS_ON_BRIDGE && !this.waitingCars.isEmpty())
crossing(this.waitingCars.getFirst());
crossingBridge(this.waitingCars.getFirst());
}
if (System.currentTimeMillis() - lastPrint >= Variables.PRINT_INTERVAL) {
System.out.println(this);
@@ -51,4 +51,4 @@ public class Guard extends Thread {
}
}
}
}
}

View File

@@ -1,9 +1,10 @@
package UE21_290425_Bruecke;
public class Variables {
public static final int MAX_WAITING_CARS = 2;
public static final int MAX_CAR_INTERVAL = 5;
public static final int CROSSING_TIME = 30_000;
public static final int MAX_CARS_ON_BRIDGE = 3;
public static final int PRINT_INTERVAL = 2_000;
public static final int MAX_WAITING_CARS = 999_999_999; // Can be used so that the programm doesn't run infinite
public static final int MAX_CAR_INTERVAL = 5; // Maximal Intervall in witch the cars can arrive (1 - X seconds)
public static final int CROSSING_TIME = 30_000; // The time a car needs to cross the bridge
public static final int MAX_CARS_ON_BRIDGE = 3; // Maximal amount of cars on the bridge at the same time
public static final int PRINT_INTERVAL = 2_000; // Amount of seconds between every Statistics output
public static final boolean SHOW_CARS = true; // Decide if you want a graphical visualisation
}