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SaleTicket.java
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SaleTicket.java
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package com.atguigu.juc;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
class Ticket {
private int number = 30;
private Lock lock = new ReentrantLock();
public void sale() {
// 创建锁
lock.lock();
try {
// 买票操作
if(number > 0) {
System.out.println(Thread.currentThread().getName() + "卖出:" + number-- + "号票,还剩:" + number + "张");
}
} catch (Exception e) {
e.printStackTrace();
} finally {
// 释放锁
lock.unlock();
}
}
}
public class SaleTicket {
public static void main(String[] args) {
Ticket ticket = new Ticket();
// 售票员 AA
new Thread(()-> {for (int i = 0; i < 40; i++) ticket.sale();}, "AA").start();
// 售票员 BB
new Thread(()-> {for (int i = 0; i < 40; i++) ticket.sale();}, "BB").start();
// 售票员 CC
new Thread(()-> {for (int i = 0; i < 40; i++) ticket.sale();}, "CC").start();
// new Thread(new Runnable() {
// @Override
// public void run() {
// for (int i = 0; i < 40; i++) {
// ticket.sale();
// }
// }
// }, "AA").start();
//
// // 售票员 BB
// new Thread(new Runnable() {
// @Override
// public void run() {
// for (int i = 0; i < 40; i++) {
// ticket.sale();
// }
// }
// }, "BB").start();
//
// // 售票员 CC
// new Thread(new Runnable() {
// @Override
// public void run() {
// for (int i = 0; i < 40; i++) {
// ticket.sale();
// }
// }
// }, "CC").start();
}
}