Information Technology

Bachelor of Computer Application BCA is a technical degree course that prepares students for a career in the field of computer applications and software development whereas Bachelor of Business Administration BBA is a Bachelor's degree in commerce and business administration. Just because their names are similar doesn't mean the courses are similar too, both the course are poles apart from each other and have extremely different applications. BCA is often seen as equivalent to B.E. Or B.Tech. In Computer Science whereas BBA is an entirely different course in Business applications and management which deals with finance, retail, marketing and management.

In your 6 semesters you must have learnt C, C+, Java, this, Algorithms which are compulsory subjects in course curriculum. If you want to learn another programming language go for python. Even if you don't Keane a new programming language it's not an issue just learn one language with advance proficiency. This and Algo should be in the core of your heart. Learn some industrial frameworks. Which are necessary for working in a real life project. Learn Java efficiently it is still the language which is in demand. Java won't die easily. Learn it make some apps make some projects and learn some frameworks. If interested in Machine learning learn python etc.
I hope it helps.