أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Basic concepts of development languages are almost same except syntax.
If you know core java, then learning advance part (frameworks) will be easy.
On basis of basic concepts, easily you can learn any other programming language like Python, Scala.
As per my thinking Python and Scala will be the future of software development and AI.
Don't worry Core java is evergreen language , it's future is bright , stick to u r basic OOP' concept,
refer books like kathy sierra , u must have depth knowledge in core java .