进阶day06-Lock接口的使用解决线程安全问题

javaSE-day06/src/com/inmind/lock07/Demo07.java

@@ -0,0 +1,20 @@
+package com.inmind.lock07;
+
+/*
+Lock接口更加灵活地解决线程安全问题
+Lock接口的常用实现类 ReentrantLock
+常用方法:
+lock():获得锁
+unlock():释放锁
+ */
+public class Demo07 {
+    public static void main(String[] args) {
+        //创建3个窗口来执行同一个任务
+        TicketTask ticketTask = new TicketTask();
+
+        new Thread(ticketTask,"窗口1").start();
+        new Thread(ticketTask,"窗口2").start();
+        new Thread(ticketTask,"窗口3").start();
+
+    }
+}

javaSE-day06/src/com/inmind/lock07/TicketTask.java

@@ -0,0 +1,31 @@
+package com.inmind.lock07;
+
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+public class TicketTask implements Runnable{
+    //定义100张票电影票
+    int tickeCount = 100;
+    Lock lock = new ReentrantLock();//多态
+
+    @Override
+    public void run() {
+        //有票就卖
+        while (true) {
+            lock.lock();//让线程获取锁对象
+            if (tickeCount > 0) {
+                try {
+                    Thread.sleep(50);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+                System.out.println(Thread.currentThread().getName() + "正在卖第" + tickeCount + "张电影票");
+                tickeCount--;
+            } else {
+                break;
+            }
+            //将锁对象释放，让多个线程重新争抢
+            lock.unlock();
+        }
+    }
+}

javaSE-day06/src/com/inmind/syncnized06/Demo06.java

@@ -1,4 +1,4 @@
-package com.inmind.syncnized_method06;
+package com.inmind.syncnized06;
 
 /*
 synchronized能够修饰代码块和方法,修饰代码块之后就被称之为同步代码块,修饰方法之后就被称之为同步方法

javaSE-day06/src/com/inmind/syncnized06/TicketTask.java

@@ -1,4 +1,4 @@
-package com.inmind.syncnized_method06;
+package com.inmind.syncnized06;
 
 public class TicketTask implements Runnable{
     //定义100张票电影票

javaSE-day06/src/com/inmind/syncnized_method05/Demo05.java

@@ -1,4 +1,4 @@
-package com.inmind.syncnized05;
+package com.inmind.syncnized_method05;
 
 /*
 在java中可以使用一个关键字synchronized来解决线程安全问题.

javaSE-day06/src/com/inmind/syncnized_method05/TicketTask.java

@@ -1,4 +1,4 @@
-package com.inmind.syncnized05;
+package com.inmind.syncnized_method05;
 
 public class TicketTask implements Runnable{
     //定义100张票电影票