多線程- 鐵路售票學習

標籤：多次   end   pre   cep   run   @param   vat   ...   靜態   

/** * 需求:鐵路售票,一共100張,通過四個視窗賣完. */ public static void main(String[] args) { new Ticket().start(); new Ticket().start(); new Ticket().start(); new Ticket().start(); }}class Ticket extends Thread { private static int ticket = 100; //private static Object obj = new Object(); //如果用引用資料類型成員變數當作鎖對象,必須是靜態 public void run() { while(true) { synchronized(Ticket.class) { if(ticket <= 0) { break; } try { Thread.sleep(10); //線程1睡,線程2睡,線程3睡,線程4睡 } catch (InterruptedException e) { e.printStackTrace(); } System.out.println(getName() + "...這是第" + ticket-- + "號票"); } } }

/**     * @param args     * 火車站賣票的例子用實現Runnable介面     */    public static void main(String[] args) {        MyTicket mt = new MyTicket();        new Thread(mt).start();        new Thread(mt).start();        new Thread(mt).start();        new Thread(mt).start();        /*Thread t1 = new Thread(mt);               //多次啟動一個線程是非法的        t1.start();        t1.start();        t1.start();        t1.start();*/    }}class MyTicket implements Runnable {    private int tickets = 100;    @Override    public void run() {        while(true) {            synchronized(this) {                if(tickets <= 0) {                    break;                }                try {                    Thread.sleep(10);               //線程1睡,線程2睡,線程3睡,線程4睡                } catch (InterruptedException e) {                    e.printStackTrace();                }                System.out.println(Thread.currentThread().getName() + "...這是第" + tickets-- + "號票");            }        }    }

多線程- 鐵路售票學習