Java Collection Framework (As per Java 8) All Covered in One Image:
Even many experienced java developers know only list/set/map and few know vector hashtable and queues. But so much more than that are actually there in the java collection framework.
I am publishing the single java collection framework image to understand the complete collection hierarchy interface/sub interface and its implementation classes. You can refer this for high-level collection java hierarchy, this is created based java 8 official oracle documention available online.
Many top tutorial websites also did not cover all the collections available in the below diagram, hopefully it helps everyone!
Java Collection Framework
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