并发系列（五）Synchronized 和volatile

谁践踏了优雅 2024-04-17 05:30 47阅读 0赞

# 1. Synchronized与volatile思维导图预览 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxkb25fX0xlZQ_size_16_color_FFFFFF_t_70]

# 2. 知识分点 #

### 2.1 Synchronized ###

##### 2.1.1 修饰代码块 #####

![在这里插入图片描述][20190806173517736.png]

##### 2.1.2 给指定对象加锁 #####

![在这里插入图片描述][20190806173535743.png]

##### 2.1.3 修饰一个方法 #####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxkb25fX0xlZQ_size_16_color_FFFFFF_t_70 1]

##### 2.1.4 修饰一个类 #####

![在这里插入图片描述][2019080617365615.png]

##### 2.1.5 修饰一个静态的方法 #####

![在这里插入图片描述][20190806181848439.png]

### 2.2 volatile ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxkb25fX0xlZQ_size_16_color_FFFFFF_t_70 2]

### 2.3 synchronized VS volatile ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxkb25fX0xlZQ_size_16_color_FFFFFF_t_70 3]

### 2.4 补充： ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxkb25fX0xlZQ_size_16_color_FFFFFF_t_70 4]

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[20190806173517736.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/11/079806df272e493bb60e4e682af617ee.png
[20190806173535743.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/11/c84ff67aab074107a76bc67acec4be15.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1NoZWxkb25fX0xlZQ_size_16_color_FFFFFF_t_70 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/11/44421c8a5ed04319891ddfa0c47e8112.png
[2019080617365615.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/11/e7b3afffcd4547698a9a2e22c9e27b13.png
[20190806181848439.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/11/121efffe110542ada82af91a38f0d246.png
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