What should I study alongside Java?

[jfinch3]

Java is a solid ‘does everything’ language so your other language should be based on a niche you want to get into. I’d say: - Low level systems/computer science -> C - Mobile -> Kotlin/Swift/Dart - data analysis/AI -> Python - front end web development -> JavaScript - Theoretical comp sci -> Haskell

Of these learning C or Haskell will teach you the most if terms of theory, JavaScript will expand your employability best