Java

Naresh IT tuition fee for JAVA technology is 8000 for 3 months

I have some free Java training resources which may help you. I have learn from them. JAVATPOINT, OPENAPI, etc.

No any Certificate in the world can't get you a job if you don't have skills
certifications are earning resources for other peoples. There are very big amount of free resources which are valuable then it so focus on skills. Certificates can't do much at time of interview.

Web designing is very interesting and powerful field as a career option. For web designing you have to learn many languages but all of them are not very much difficult. But if I suggest you should start with REACT and FIREBASE and focus on project based learning. The best recourses you will find at fullstackopen. Com or any other learning sites like freecodecamp. Org.

Yes, don't restrict yourself just because you are a biology student. You have equal chances of making a career just as compared to other non-biological students. Yes, you can make a career in computers and programming by pursuing BCA. As you don't have mathematics then you can't pursue Biology.