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docs: fix typo in HashMap concurrency example #2902

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2 changes: 1 addition & 1 deletion docs/java/collection/java-collection-questions-02.md
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Expand Up @@ -370,7 +370,7 @@ JDK 1.8 后，在 `HashMap` 中，多个键值对可能会被分配到同一个

- 两个线程 1,2 同时进行 put 操作，并且发生了哈希冲突（hash 函数计算出的插入下标是相同的）。
- 不同的线程可能在不同的时间片获得 CPU 执行的机会，当前线程 1 执行完哈希冲突判断后，由于时间片耗尽挂起。线程 2 先完成了插入操作。
- 随后，线程 1 获得时间片，由于之前已经进行过 hash 碰撞的判断，所有此时会直接进行插入，这就导致线程 2 插入的数据被线程 1 覆盖了。
- 随后，线程 1 获得时间片，由于之前已经进行过 hash 碰撞的判断，所以此时会直接进行插入，这就导致线程 2 插入的数据被线程 1 覆盖了。

```java
public V put(K key, V value) {
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