There synchronized static method and the method of Java_ synchronized multi-threaded _ a class at the same time, these two methods sync?

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Not synchronized

• The difference between a static method and member method is a static method belonging class member method belongs to the object
• synchronized method lock is the current object
• If it is static synchronized method lock is Class object class, which means that all objects of that class will be genlock.
• If an ordinary synchronization method, that is locked object calls this method, only one object is synchronized locked.