Java

You can opt for B.Sc in computer science and take your optional subject as mathematics.

There is not any bond restriction on learning any languages. You can learn freely.
Regards.

Yes. If you are a advanced level programmer in C or C+ or Java then many jobs are awaiting of you. There are many jobs for these languages. But firstly, you should have the medium level knowledge of programming.

Firstly, clear your words. What do you want to ask? Mention your question properly. Your question is not understandable.

Duration of this course is 80 hours. For further details regarding this course, please refer to the link provided below:
https://www.shiksha.com/it-software/programming/course/certificate-in-advanced-java-j2ee-national-institute-of-electronics-and-information-technology-shimla-kasumpti-extension-cent

It's not necessary to opt Java for banking.

Best institutes for Java training in Bhopal are mentioned below:
1) JSTC (Java Training Centre)
2) Appin Technology Lab
3) EZEON
4) Aimerse Technologies
5) DreamSoft Systems
Regards.

MCA is most commonly preferred by the graduates after BCA. Those who have completed BCA or Bachelors degree in any discipline are eligible to join for the MCA courses. There are many other options for the BCA graduates in higher studies. They are:
Master of Computer Application (MCA)
Masters in Comput

If you want to learn Java then you have must have the basic programming skills and you must know about C. Good luck.

Java is a completely different language and one can learn Java directly without learning C language. As with all programming languages there may be areas where there is an overlap, but that would mostly be in logic or algorithms. Regards.