Due to the details of the content is too much, so only part of the knowledge point screenshots out of the rough introduction, each small node there are more detailed content!
Sorted out a Java core knowledge points. It covers JVM, locking, concurrency, Java reflection, Spring principle, microservices, Zookeeper, database, data structure and many other knowledge points.
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If you need to get to this document then add wechat: BGM7756 communication progress!