I'd also also add to the "core" list at least some of functional programming concepts:
immutability
functional composition
understanding of what is side effect, function purity and referential transparency
at least minimal knowledge of monads like Option and Either
basic understanding of operations on streams (map/reduce)
Java world is changing towards functional programming and omitting relevant concepts may make a big gap in knowledge. Also, these concepts easier to get before mind is stiffened :)
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I'd also also add to the "core" list at least some of functional programming concepts:
Java world is changing towards functional programming and omitting relevant concepts may make a big gap in knowledge. Also, these concepts easier to get before mind is stiffened :)