From f788ab908a3eebd65a7674605ee07af2cbf1d7b9 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Thu, 6 Aug 2026 13:49:46 +0800
Subject: [PATCH] =?UTF-8?q?s-day06-=E4=BD=BF=E7=94=A8synchornized=E6=96=B9?=
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---
 .../inmind/thread_safet_method06/Demo07.java  | 23 ++++++++++++
 .../thread_safet_method06/TicketTask.java     | 35 +++++++++++++++++++
 2 files changed, 58 insertions(+)
 create mode 100644 s-day06/src/com/inmind/thread_safet_method06/Demo07.java
 create mode 100644 s-day06/src/com/inmind/thread_safet_method06/TicketTask.java

diff --git a/s-day06/src/com/inmind/thread_safet_method06/Demo07.java b/s-day06/src/com/inmind/thread_safet_method06/Demo07.java
new file mode 100644
index 0000000..3a503e8
--- /dev/null
+++ b/s-day06/src/com/inmind/thread_safet_method06/Demo07.java
@@ -0,0 +1,23 @@
+package com.inmind.thread_safet_method06;
+
+/*
+    在java中可以使用一个关键字synchronized来解决线程安全问题.
+
+    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
+
+    同步方法语法:
+    修饰符 synchronized 返回值类型 方法名(参数列表){
+        方法体
+    }
+
+    同步方法:就是在整个方法体的所有代码上都加上同步代码块
+ */
+public class Demo07 {
+    public static void main(String[] args) {
+        //创建卖票任务
+        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();
+    }
+}
diff --git a/s-day06/src/com/inmind/thread_safet_method06/TicketTask.java b/s-day06/src/com/inmind/thread_safet_method06/TicketTask.java
new file mode 100644
index 0000000..a041f70
--- /dev/null
+++ b/s-day06/src/com/inmind/thread_safet_method06/TicketTask.java
@@ -0,0 +1,35 @@
+package com.inmind.thread_safet_method06;
+
+//卖票任务:就是卖100张票
+public class TicketTask implements Runnable{
+    int ticketCount = 100;//100张票
+    Object lock = new Object();//锁对象
+
+    @Override
+    public void run() {
+        //有票就卖
+        while (true) {
+            //如果有票就卖
+            sellTicket();
+        }
+    }
+
+    /*
+    卖票方法(同步方法)
+    同步方法中有没有锁对象呢？？？？
+           同步成员方法的锁对象：this
+           同步静态方法的锁对象：TicketTask.class(Class对象)【反射中学习】
+     */
+    public synchronized void sellTicket(){
+        if (ticketCount > 0) {
+            //模拟卖票时间
+            try {
+                Thread.sleep(50);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+            System.out.println(Thread.currentThread().getName() + "正在卖第" + ticketCount + "张票");
+            ticketCount--;
+        }
+    }
+}