Ask HN: How to learn Java and Scala as Python Dev quickly (48 to 72 hours)?
Hi HN, I know python good enough to write working programs. I haven't had chance to work on functional programming or collections , but CRUD app, database interactions, ETL is kind of work I have done.I want to learn Java and Scala. I am little familiar with Java such as basic concept of class, object, main function, compiling programs , I know about inheritance and polymorphism but not good...