同步例子-火车票

package com.pakage.ThreadAndRunnable;

public class Runnable_demo implements Runnable{
private int ticket=10;
public Runnable_demo(){
}
@Override
public void run() {
for(int i=0;i<20;i++){
if(this.ticket>0){
//休眠1s秒中，为了使效果更明显，否则可能出不了效果
try {
Thread.sleep(1000);
} catch (Exception e) {
e.printStackTrace();
}
this.sale();
}

}
}

public synchronized void sale(){
if(this.ticket>0){
System.out.println(Thread.currentThread().getName()+"号窗口卖出："+this.ticket--+"号票");
}
}

public static void main(String args[]){
Runnable_demo demo=new Runnable_demo();
//基于火车票创建三个窗口
new Thread(demo,"a").start();
new Thread(demo,"b").start();
new Thread(demo,"c").start();
}

}

package com.pakage.ThreadAndRunnable;

public class Runnable_demo implements Runnable{
private int ticket=10;
public Runnable_demo(){
}
@Override
public void run() {
for(int i=0;i<20;i++){
synchronized(this){
if(this.ticket>0){
//休眠1s秒中，为了使效果更明显，否则可能出不了效果
try {
Thread.sleep(1000);
} catch (Exception e) {
e.printStackTrace();
}
System.out.println(Thread.currentThread().getName()+"号窗口卖出："+this.ticket--+"号票");
}
}

}
}

public static void main(String args[]){
Runnable_demo demo=new Runnable_demo();
//基于火车票创建三个窗口
new Thread(demo,"a").start();
new Thread(demo,"b").start();
new Thread(demo,"c").start();
}

}