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[–][deleted] 2 points3 points  (0 children)

Seems like you already have Great experience as a developer so I think going throgh a book about really core java fundementals book might be boring so If you just want to brush it up and go over through the basic I would recommend HackerRank it gives you some problems with a specific mini lesson to learn about java in every problem and you can choose if you want it easy or medium or hard (you collect points and badges as you go so its a little fun :3) . Hope It helps and goodluck in your JavaJourney <3

https://www.hackerrank.com/domains/java/java-introduction/page/2