The world of technology is a web-based world. Thus, the top five programming languages are internet programming languages used by most, if not all, of the apps and sites you visit from your devices.
All Android apps are Java apps. Over ninety percent of corporate America uses Java to develop their business systems (Stackify). Java is based on C++ so by learning that language, you already have the fundamentals of Java in your arsenal. Java is platform-independent and is also one of the most secure languages, making it ideal for smart phone apps. The majority of all open programming jobs now require at least some Java.
C++ is built on the C programming language. C++ is a more robust, object-oriented environment for intermediate level developers. C++ has a set of predefined classes that can be instantiated multiple times and inherited by other classes. Although not as popular as it once was, C++ is still a desired skill in over a quarter of the job market (IT Skills in a Tough Job Market).
C# (C sharp) is used in a variety of ways. It is a Microsoft language that utilizes the Microsoft.NET framework. If you are a video game developer or aspiring video game developer, you should learn C and C#, as these are the two preferred languages in that industry. C# developers make up just slightly fewer than C++ developers in today’s IT job market.
In the era of “big data,” it is a valuable skill to be able to perform data-mining and scientific computing. Python is a tried and true language that is well-known and capable of completing these tasks. As the desire for machine-learning grows, so will Python’s popularity. Python is easy to use and has been around since the early 90’s. It is an object-oriented, imperative, functional and procedural language. It is highly extensible and has a large standard library. It is also available on several different operating systems.