synchronized 关键字的体验

package com.huachuan.learnjava;


public class Demo1 {


static int Ticketcount = 0;
public static Object o = new Object();


public static void main(String[] args) {



Thread t1 = new A();
Thread t2 = new B();


t1.start();
t2.start();


try {
t1.join();
t2.join();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}


System.out.println(Ticketcount);
}


}


class A extends Thread {


@Override
public void run() {
synchronized (Demo1.o) {
for (int i = 0; i < 10000; i++) {
Demo1.Ticketcount++;
}
}
}


}


class B extends Thread {
public void run() {
synchronized (Demo1.o) {
for (int i = 0; i < 10000; i++) {
Demo1.Ticketcount++;
}
}
}


}