If you want to make websites on your own, do not use Java. Rails will be far far simpler and easier to get things done quickly. If you are worried about marketability, Django is a python clone of Rails more or less, so that would be a good choice, too. Plus Python is more widely used than Ruby so could make you more marketable. Now, if you are looking to be employed by any means necessary, the vast majority of software is Java or C#. Java should be an extremely marketable skill. But, Java jobs are unlikely to be startup-style jobs. They will be for established companies doing stuff like insurance underwriting or logistics or any of the other things that most companies do. That may not be exciting to you. If you are very agnostic about tech, look at companies you want to work at and jobs they are offering, and look at the stacks they are using. While Java, e.g., is somewhat painful for a single-person making a web app, it's certainly doable and if you don't have real-world experience, the next best thing is to show work you did on your own. More on reddit.com

I switched from Java to Ruby a few years ago. Here’s a few things off the top of my head. Instead of interfaces or abstract classes Ruby has modules. They’re similar, but different.. and important. You’re going to probably lose the ability to ctrl-click on things and Go To Definition, unless you’re lucky. Improvements are being made in the Ruby LSP space to get this working, but it’s still in progress. If you’re like I was, once you start to discover Ruby’s metaprogramming capabilities you’ll get intrigued by them and want to use them. Don’t, at least for a while. Take a look at the documentation for the String, Array, and Enumerator classes. Also Hash, which will likely become second nature to you before very long. The Ruby language was designed around the concept of omakase. Literally this means “leave it up to you”, but there are implications around the expected level of skill and quality that are implicit in it. Philosophically, Java is Catholic. Ruby is Zen. You’re going to be amazed at how readable you can make your code. If you can find it, read _why’s Poignant Guide to Ruby. It’s weird, but also kind of special. It’s also very good. More on reddit.com

Welcome. You might get surprised by how good the "official" site of the tools are good on the documentation perspective. https://www.ruby-lang.org/en/documentation/ This guide helped a lot of developers so far: https://poignant.guide/book/chapter-1.html But, if you want a tl;dr: version: https://www.ruby-lang.org/en/documentation/ruby-from-other-languages/to-ruby-from-java If you're looking for a book, the Pike axe is a good one: https://pragprog.com/titles/ruby5/programming-ruby-3-2-5th-edition/ Enjoy More on reddit.com

After you learn your 4th language you no longer know any coding languages. You know patterns, and maybe the syntax for whatever language you've been using most recently.

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