[Javase] Multithreading (ticketing example)

Requirements: Simple ticket purchase procedure, multiple window selling tickets, multi-threading

Define a class Ticket implement The Runnable interface,

Defines the number of votes for a member property int type nums

Implement the Run () method,in therun method

while (true) of the Dead loop, print nums--

Get Ticket object,new out

Get the Thread () object,new out, construct parameter:runable Object

Call the start () method of the thread object to open the thread

Thread security issues at this time, using synchronized Synchronous code blocks to resolve security issues

Avoid deadlock problems, synchronization is nested in sync, and locks are different

classTicketImplementsRunnable {Private intNums = 100; @Override Public voidrun () { while(true) {            synchronized( This) {                if(Nums > 0) {                    Try{Thread.Sleep (10); } Catch(Exception e) {e.printstacktrace (); } System.out.println (Thread.CurrentThread (). GetName ()+ "= = =" + (nums--)); }Else{                     Break; }            }        }    }} Public classTicketdemo {/**     * @paramargs*/     Public Static voidMain (string[] args) {Ticket Ticket=NewTicket (); NewThread (Ticket). Start (); NewThread (Ticket). Start (); NewThread (Ticket). Start (); NewThread (Ticket). Start (); }}

[Javase] Multithreading (ticketing example)