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Copy pathTicketBookingTest3.java
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51 lines (43 loc) · 1.83 KB
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class TicketCounter {
private int ticketsAvailable = 20;
public synchronized void bookTicket(String passengerName, int numberOfTickets) {
if (numberOfTickets <= ticketsAvailable) {
ticketsAvailable -= numberOfTickets;
System.out.println(passengerName + " booked " + numberOfTickets + " ticket(s). Tickets left: " + ticketsAvailable);
} else {
System.out.println("Not enough tickets for " + passengerName + " to book " + numberOfTickets + " ticket(s). Tickets left: " + ticketsAvailable);
}
}
public synchronized int getTicketsAvailable() {
return ticketsAvailable;
}
}
class TicketBookingTask implements Runnable {
private TicketCounter ticketCounter;
private String passengerName;
private int numberOfTickets;
public TicketBookingTask(TicketCounter ticketCounter, String passengerName, int numberOfTickets) {
this.ticketCounter = ticketCounter;
this.passengerName = passengerName;
this.numberOfTickets = numberOfTickets;
}
@Override
public void run() {
while(1){
ticketCounter.bookTicket(passengerName, numberOfTickets);
}
}
}
public class TicketBookingTest3 {
public static void main(String[] args) {
TicketCounter ticketCounter = new TicketCounter();
Thread thread1 = new Thread(new TicketBookingTask(ticketCounter, "Passenger1", 5));
Thread thread2 = new Thread(new TicketBookingTask(ticketCounter, "Passenger2", 7));
Thread thread3 = new Thread(new TicketBookingTask(ticketCounter, "Passenger3", 4));
Thread thread4 = new Thread(new TicketBookingTask(ticketCounter, "Passenger4", 6));
thread1.start();
thread2.start();
thread3.start();
thread4.start();
}
}