How many ways to implement Java multithreading? How are threads synchronized
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Java
There are two ways to implement multithreading in Java: < span style = "font size: 15px;" > 1. Directly inherit thread class< span style="font-size: 15px;"> 2. Implement runnable interface< span style="font-size: 14pt;"> There are five methods to realize synchronization: < span style = "font size: 15px;" > 1. Synchronization method< span style="font-size: 15px;"> 2. Synchronization code block< span style="font-size: 15px;"> 3. Use special domain variable (volatile) to realize thread synchronization< span style="font-size: 15px;"> 4. Use reentry lock to realize thread synchronization< span style="font-size: 15px;"> 5. Use local variables to realize thread synchronization< span style="font-size: 15px;"> In the process of multi-threaded implementation, we should pay attention to rewriting or overwriting the run () method. For the implementation of synchronization, we often use synchronized to write synchronization methods and code blocks.
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