Java

I am sharing url of the same from Shiksha itself. Please read it for more clarity about this course. Shiksha site has explained everything precisely about this course. https://www.shiksha.com/scjp-sun-certified-java-programmer-chp.

Yes, you can apply for jobs after completing your course in C, C+ and Java programming languages if you're a good coder and have good coding skills. There are possibilities for you to get a decent job with big companies.

I mean certifications are useless if you do not know them. Even, without certifications if you can confidently tell the recruiter that you have knowledge in them and solve a few questions you will get a job.

It depends on company norms. Generally, companies demand no back-logs at the time of joining.
Good luck.

Faculty wise, this centre is good, but in terms of placements, this centre is not good enough.

Hello,
Yes, development is good course in Udemy. This are the few best courses on Udemy. * Codecademy. If you are a complete beginner then this is the tutorial for you. * Udemy. Udemy is a wonderful resource for all things tech. * LearnJava. * EdX. * Oracle Java Tutorials. * Skillshare. * Codementor. * Java Code Geeks. Thank you.

It depends upon your expertise and experience. And, how much creative you are to give the best.