一个窗口共卖出5张票和每个窗口都卖出5张票-----难道是run里面循环造成的结构？？？

一个窗口共卖出5张票

package com.sxt;

class MyThread implements Runnable{
private int ticketsCont=5;
@Override
public void run() {
while(ticketsCont>0){
ticketsCont--;
System.out.println(Thread.currentThread().getName()+"卖出了第"+ticketsCont+"张票");
}

}

}

public class TicketsRunnable {

public static void main(String[] args) {
MyThread mt=new MyThread();
Thread th1=new Thread(mt,"窗口1");
Thread th2=new Thread(mt,"窗口2");
Thread th3=new Thread(mt,"窗口3");

th1.start();
th2.start();
th3.start();
}

}

每个窗口都卖出5张票

package com.sxt;

class Test implements Runnable{

int ticket=5;

@Override
public void run() {
for (int i = ticket; i >0; i--) {
System.out.println(Thread.currentThread().getName()+"卖出了第"+i+"张票");
}
}

}

public class RunnableDemo{

public static void main(String[] args) {
Test ra=new Test();
Thread t=new Thread(ra,"窗口1");
Thread t1=new Thread(ra,"窗口2");
t.start();
t1.start();

}

}