It maybe more appropriate to ask, should I have a portfolio of Java applications/solutions to interesting problems. Learning the pitfalls of a language is undou

It maybe more appropriate to ask, should I have a portfolio of Java applications/solutions to interesting problems. Learning the pitfalls of a language is undoubtedly useful and I would argue that learning the process of project start-up, testing, maintenance and deployment would perhaps put you in a much more valuable position for learning.