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Update 2020最新Java并发基础常见面试题总结.md
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docs/java/multi-thread/2020最新Java并发基础常见面试题总结.md
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@ -229,7 +229,7 @@ Thread[线程 2,5,main]waiting get resource1
1. 互斥条件：该资源任意一个时刻只由一个线程占用。
2. 请求与保持条件：一个进程因请求资源而阻塞时，对已获得的资源保持不放。
3. 不剥夺条件:线程已获得的资源在末使用完之前不能被其他线程强行剥夺，只有自己使用完毕后才释放资源。
3. 不剥夺条件:线程已获得的资源在未使用完之前不能被其他线程强行剥夺，只有自己使用完毕后才释放资源。
4. 循环等待条件:若干进程之间形成一种头尾相接的循环等待资源关系。
### 8.2. 如何避免线程死锁?