package cn.ljs.FristSync;
public class SalerDemo extends Thread {
static int tickets = 1000;
String name;
static Object lock = new Object();
public SalerDemo(String name) {
this.name = name;
}
public void run(){
while(true){
synchronized (lock) {
if (tickets < 1) {
return ;
}
System.out.println(name + ": " + tickets);
tickets--;
}
}
}
public static void main(String[] args) {
Thread t1 = new SalerDemo("saler1");
Thread t2 = new SalerDemo("saler2");
Thread t3 = new SalerDemo("saler3");
t1.start();
t2.start();
t3.start();
}
}
建立票池
package cn.ljs.FristSync;
public class SalerDemo01 extends Thread{
private String name;
private TicketsPool pool;
public SalerDemo01(String name, TicketsPool pool){
this.name = name;
this.pool = pool;
}
public void run(){
while (true){
int num = pool.getTickets();
if (num != ) {
System.out.println(name+"卖了"+num);
}else {
return;
}
}
}
public static void main(String[] args) {
TicketsPool pool = new TicketsPool();
SalerDemo01 saler1 = new SalerDemo01("", pool);
SalerDemo01 saler2 = new SalerDemo01("", pool);
SalerDemo01 saler3 = new SalerDemo01("", pool);
saler1.start();
saler2.start();
saler3.start();
}
}
class TicketsPool{
private int num = ;
public int getTickets(){
synchronized (this) {
int tmp = num;
num--;
return tmp > ? tmp:;
}
}
}