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Snailclimb merged 1 commit into from
Dec 30, 2021
Merged

错别字修改 #1488

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2 changes: 1 addition & 1 deletion docs/java/concurrent/java并发进阶常见面试题总结.md
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Expand Up @@ -232,7 +232,7 @@ JDK1.6 对锁的实现引入了大量的优化，如偏向锁、轻量级锁、

### 2.3. 并发编程的三个重要特性

1. **原子性** : 一个的操作或者多次操作，要么所有的操作全部都得到执行并且不会收到任何因素的干扰而中断，要么所有的操作都执行，要么都不执行。`synchronized` 可以保证代码片段的原子性。
1. **原子性** : 一个的操作或者多次操作，要么所有的操作全部都得到执行并且不会受到任何因素的干扰而中断，要么所有的操作都执行，要么都不执行。`synchronized` 可以保证代码片段的原子性。
2. **可见性** ：当一个线程对共享变量进行了修改，那么另外的线程都是立即可以看到修改后的最新值。`volatile` 关键字可以保证共享变量的可见性。
3. **有序性** ：代码在执行的过程中的先后顺序，Java 在编译器以及运行期间的优化，代码的执行顺序未必就是编写代码时候的顺序。`volatile` 关键字可以禁止指令进行重排序优化。

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