Studying programming languages will help you be better at your job, and make more money, and be a happier, more fulfilled and more informed citizen.
Learning programming language increases the ability to develop effective algorithms,it also increase Your Vocabulary Of useful Programming Constructs
Java is a highly portable language as it must be executed through a cross-platform compatible Java Virtual Machine (JVM).Furthermore, Android apps are also developed using Java since the Android Operating System runs on a Java language environment.
Java covers OOPS strongly so learning java clears your oops concept.
C is a mother of all programming languages . so one should start your programming life with c programming .
C is a very powerful and widely used language. It is used in many scientific programming situations. It forms (or is the basis for) the core of the modern languages Java and C++. It allows you access to the bare bones of your computer..
Python is a general-purpose language, which means it can be used to build just about anything, which will be made easy with the right tools/libraries.
Professionally, Python is great for backend web development, data analysis, artificial intelligence, and scientific computing. Many developers have also used Python to build productivity tools, games, and desktop apps, so there are plenty of resources to help you learn how to do those as well.