1.建立多執行緒類繼承Runnable
package test3;

public class TicketThread implements Runnable{
int ticket = 100;
Object obj = new Object();
public void run() {
//method(); //method是實現了同步方法，可以解決火車票出現的問題，
while(true) {
synchronized (obj) { //也可以在run()裡面採用同步程式碼塊的形式，來解決出現的異常
if(ticket>0) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println(Thread.currentThread().getName()+”:”+ticket–);
}
}
}

}
private synchronized void method() {
    while(true) {
            if(ticket>0) {
                try {
                    Thread.sleep(100);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                System.out.println(Thread.currentThread().getName()+":"+ticket--);              
        }       
    }
}
 

}

2.實現多執行緒

package test3;

public class TicketThreadDemo {
public static void main(String[] args) {
TicketThread tr = new TicketThread();

    Thread t = new Thread(tr);
    t.setName("視窗一");       

    Thread t2 = new Thread(tr);
    t2.setName("視窗二");

    Thread t3 = new Thread(tr);
    t3.setName("視窗三");

    t.start();
    t2.start();
    t3.start();
    }
 

}