Java multithreaded simple project--Cinema ticketing machine

Source: Internet
Author: User
Tags thread class ticket

Look at the Internet so much information and video, probably also know how to use the thread API, then do a project to test the knowledge of it ~ ~

The following is a test class for setting parameters and starting threads, nothing to say. (Knowledge point: Create thread object, thread open)

Package com.thread.movticket; * Movie ticket system thread Test * Usage: Sleep,synchronic,join,wait,notify,start,setpriority,yield * Business functions: * VIP Purchase tickets, the civilian purchase tickets (join,wait, 
    	Notify)/public class Movietest {public static void main (string[] args) {//movie ticket number int ticketamount = 1000;
    	Create a movie ticketing system based on the number of votes moviesystem moviesystem = new Moviesystem (ticketamount);
		try {thread.sleep (1000);
		catch (Interruptedexception E1) {//TODO auto-generated catch block E1.printstacktrace (); //Open three Windows tickets, two civilians, a VIP saleticket saleticketa =new saleticket (moviesystem,0,ticketamount);//Movie System object, VIP level,
    	Number of votes Saleticket saleticketb =new saleticket (moviesystem,0,ticketamount);
    	Saleticket vipsaleticket = new Saleticket (moviesystem,1,ticketamount);
    	
    	System.out.println ("The opening of the movie theater of the" Hu ' an goose factory);
    	thread T1 = new Thread (Saleticketa, "window A");
    	Thread t2 = new Thread (Saleticketa, "Window B");

    	thread t3 = new Thread (Saleticketa, "VIP window");
    	T1.start ();
    	T2.start ();T3.start (); }
}

The following is the main class (Knowledge point: Sleep ())

Package com.thread.movticket;

public class Moviesystem {
	
	//movie tickets. Total number of movie tickets
	private int ticketamount;
	Private int[] ticket;
	
	Public Moviesystem (int ticketamount) {
		
		//Instantiate ticket number Create array
		this.ticketamount = Ticketamount;
		Ticket = new Int[ticketamount];
		
		The ticket is divided by seat number () for
		(int i=0;i<this.ticketamount;i++) {
			ticket[i] = i+1;
		}
	}
	*
	 * * Selling Method
	 * Ticket number is more than 0 to sell tickets, TicketAmount-1 is because the number of votes than the array of 1, otherwise told to return-1 ———— "No Ticket ~ ~"
	 * Each sold a ticket, the number of votes minus one, The current thread hibernation 400ms represents the system processing information (in fact, to allow us to better observe the output)
	 * Results return the number of tickets (also seat number, forgive me lazy)/public
	int Saleticket () {
		
		if (ticketamount>0) {
			if (Ticket[ticketamount-1] > 0) {
			ticketamount--;
			try {
				thread.sleep;
			} catch (Interruptedexception e) {
				e.printstacktrace ();
			}
			Return ticketamount+1
			}
			}
			return-1;//no Ticket
	}
}
Then there is the thread class knowledge point: ①keeprunning stop Thread ②setpriority () Set Thread priority ③synchronize (object o) thread's sync lock, personal feel object o useless, write on it.

Package com.thread.movticket;	
	public class Saleticket extends thread{//shared movie system, create lock object, create dominant object private Moviesystem Moviesystem;
	Object = new Object ();
Boolean keeprunning = true;
private int ticketamount;
	
	Int[] seat; Share cinema system and ticket number, set VIP level public Saleticket (Moviesystem moviesystem,int viplever,int ticketamount) {this.moviesystem = m
		
		Oviesystem;
		According to the VIP level set speed, currently only normal and VIP1 level if (Viplever = = 0) {thread.currentthread (). setpriority (min_priority);
		}else if (viplever = = 1) {Thread.CurrentThread (). setpriority (max_priority);
			} public void Run () {while (keeprunning) {//store the number of movie tickets returned by the movie system (seat number) and use synchronize to prevent multiple threads from reading the same seat number int num;
			Synchronized (object) {num = Moviesystem.saleticket ();
				if (num > 0) {System.out.println (Thread.CurrentThread (). GetName () + ": Sell" +num+ "seat");
			System.out.println ("Left" + (num-1) + "Ticket"); }else if (num = = 1) {System.out.println (Thread.CurrentThread (). GetName () + "."
				+ "No Ticket ~ ~"); Keeprunning =False }
			}
		}
	}
}
Basically these are the knowledge involved is too shallow, shame.

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