online Ticket Booking program without using Thread Synchronization

online Ticket Booking program without using Thread Synchronization

Program

class Reserve implements Runnable
{
    int available=1;
    int wanted;
    Reserve ()
    {
        wanted=1;
    }
    public void run()
    {
        System.out.println("avalable Tickets are "+available);
        if(available>=wanted)
        {
            String name=Thread.currentThread().getName();
            System.out.println(wanted+" Ticket reserved for person "+name);
            try
            {
                Thread.sleep(2000);
                available=available-wanted;
            }
            catch(Exception e)
            {
                System.out.println(e);
            }
        }
        else
        {
            System.out.println("sorry ! no Tickets Available");
        }
    }
}
public class Main
{
    public static void main(String args[])
    {
        Reserve r=new Reserve();
        Thread t1=new Thread(r);
        Thread t2=new Thread(r);
        Thread t3=new Thread(r);
        Thread t4=new Thread(r);
        t1.start();
        t2.start();
        t3.start();
        t4.start();
    }
}

avalable Tickets are 1
avalable Tickets are 1
avalable Tickets are 1
avalable Tickets are 1
1 Ticket reserved for person Thread-0
1 Ticket reserved for person Thread-1
1 Ticket reserved for person Thread-2
1 Ticket reserved for person Thread-3

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