If you want to understand why Java works the way it does, it’s still an "order of magnitude" better than standard manuals.
If you are looking for a physical copy or more modern alternatives, you can find them at retailers like Amazon or Powell's Books . Thinking In Java 4th Edition
Heavily features Java 5/6; lacks modern features like Lambdas or Streams. If you want to understand why Java works
Unlike many tutorials that focus on platform mechanics, this book emphasizes object-oriented principles and idiomatic coding . Thinking In Java 4th Edition
It might be daunting. Newer resources may be better for learning modern syntax first.