1. Ruby : Many famous websites, such as Airbnb, Twitch, Hulu, etc., are built with Rails, which means they’re always looking for Ruby developers. Also, since developers usually have a lot fun with Rails and it's fairly easy to pick up, Rails will most likely continue to be popular among coding newbies.That said, the rise of Node.js will definitely have an impact on the popularity of Ruby on Rails — Node.js has already overtaken Rails on Github. While this isn’t an absolute sign that Node.js will overtake Rails, we should note that a few years back, Rails overtook Python’s biggest web framework, Django, for back-end development, and Rails had more stars than Django.

Moreover, a new trend for "isomorphic" apps will likely affect Rails adoption, a practice that is said to improve web app performance. Since isomorphic apps pretty much need to run on the Node.js platform, which is in JavaScript (the same language used in front-end), Node.js will most likely only become more popular with time. The appeal of only having to be well-versed in one language (JavaScript) may also shift some potential new blood away from learning Ruby. Google's Go is another back-end alternative that has received some attention in the last two years. However, since Rails continues to get frequent updates, it will still remain relevant for a while. Not to mention, it has a tremendously loyal community with tons of useful tools to help make development easier. Thus, despite a decline in popularity, Ruby will still be sticking around.

2.Python : Python is popular among academic researchers and data scientists, and as mentioned before, many schools choose to introduce beginners to coding through Python. This means Python will continue to grow steadily and remain relevant. While Python won’t be evolving as fast or seeing the same explosive growth in popularity and demand as JavaScript, it will continue strong, especially when there is such a high demand for data scientists.

3.PHP : The trends for backend development has been shifting away from PHP for some years now, but 80% of websites on the web are still built with PHP — it was a language designed for the web, after all.Nonetheless, if you Google what programming language beginners should learn, you’d find that developers generally don’t recommend learning PHP. In fact, many developers apparently hate it. The PHP community is trying to shake off its bad reputation with new guidelines on how to code PHP the Right Way and new tools, but in general, the future of PHP seems rather stagnant as of 2015 (at least in the U.S.). Though some had hoped that PHP7 would revitalize the community, it is still known to be quite fragmented.

3.Java:Android has been a big boost in keeping Java the most popular programming language, and most enterprises also love Java for its relative stability and scalability.With the rise of Spark (which uses the Scala language) and Cassandra (which supports other languages), it’s hard to say how long Hadoop will continue to reign as the most popular big data framework. With that said, given how large enterprises behave when it comes to change, Hadoop won’t be going away. The same can be said about the Java programming language in general, as Java has excellent tools for back-end development and is much more established for enterprise development. Thus, Java will continue strong as one of the most relevant programming languages in the next few years.

4.Objective-C/Swift : Since Apple released Swift, and Objective-C only works for Apple products, one cannot expect Objective-C to stick around too much longer in the future. Swift, on the other hand, will of course be relevant for the years to come, as long as people continue to use Apple products. With that said, this doesn’t mean you shouldn’t learn Objective-C in 2017, since most open-source projects for iOS development are still written in Objective-C. Generally speaking, using something you don’t understand is not a good idea. Not to mention, it's not that difficult for you to learn Objective-C if you know Swift or vice versa. C: C is quite low-level compared to other programming languages, but since it's the OS lingua franca and many development tools are written in C, including Linux, it will be sticking around.

5.SQL : SQL is almost universally understood by database administrators. For a while, SQL seemed to have lost its relevance with the rise of NoSQL services, such as MongoDB and Redis, and non-SQL-using Big Data computing platforms, such as Hadoop, Spark, and Cassandra. Many people were howling about how SQL was dying.bApparently not any more. As a result, even NoSQL had to reposition itself as “Not Only SQL. With the rise of big data and the difficulty of managing it, SQL is hotter than ever (as you already know from the job trends). Google has also recently updated its BigQuery service so it can now ingest up to 100,000 rows per second per table, and BigQuery uses SQL. Spark's also had the Spark SQL Module since version 1.3. For products like ClustrixDB, DeepSQL, MemSQL, and VoltDB, all you need to do is add commodity nodes instead of bulking up a database server. All in all, SQL is relevant again because it’s needed to manage and analyze (not store) big data. The developer's community is even predicting some sort of unification of SQL and NoSQL. Either way, not only is SQL everywhere, but it’s also safe to say SQL will continue to be relevant.

6: C++: C++ is still considered the most powerful language in terms of performance and capabilities (even against Rust), C++ will most likely continue to be relevant in certain areas such as things that need high performance (e.g. game engines). Since ISOCPP (International Organization for Standardization) has completed its work on C++17, which is in its final ISO balloting process, it'll most likely start working on C++20 in July 2017. All that to say, it's still an evolving language.In the future, Rust may potentially replace C++ in some areas of systems programming, as Rust aims to be able to produce less-vulnerable software than C++ does. Read more about how Rust compares to other languages here. Regardless of whether Rust will actually take over C++, now is a good time to learn Rust if you're an advanced developer.

7: C# :Being limited to Microsoft platforms and being closed-sourced did not work in C#’s favor in the past, but thankfully Mono came to the rescue (though Mono had some performance issues in the past, its recent updates have improved them).Developers who’ve worked with C# seem to love the C# programming language, and the passion continues to fuel the strong community. Not to mention, C# is the primary language for Unity 3D, a rather popular game engine that could also works on iOS, Linux, etc. The rise of Unity3D as the de facto indie game engine and VR apps has solidified C#'s future. Since VR is a big thing, and will continue to be a big thing, C# is sure to have a pretty bright future. Besides, C# is also pretty popular for enterprise development in countries other than the U.S., such as the UK. Obviously, Microsoft will keep C# alive for a while and keep it relevant for the .NET platform. In fact, it has been aggressively open-sourcing its products and making it more accessible so developers can adopt it.