多线程

import java.util.concurrent.locks.ReentrantLock;

public class thread {
    public static void main(String[] args){
        MyThread myThread = new MyThread();
        Thread thread = new Thread(myThread);
        Thread thread1 = new Thread(myThread);
        thread.start();
        thread1.start();
    }
}
class MyThread implements Runnable{

    private int ticket = 10;
    @Override
    public void run() {
        for (int i=0;i<100;i++){
           method();
            }
        }
    ReentrantLock lock = new ReentrantLock();
        private void method() {
            //锁
            lock.lock();
            try {
                if(ticket>0){
                    ticket--;
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    System.out.println(ticket);
                }
            } catch (Exception e) {
                e.printStackTrace();
            }finally {
                //解锁
                lock.unlock();
            }
    }

}