You can find what courses are offered in a specific term by using the UF Schedule of Courses: http://www.registrar.ufl.edu/soc.

If you would like to know more about what courses will be offered in a term not listed on the SOC yet – you can refer to the previous Fall or Spring term as a guide (only a couple of courses change from one Spring/Fall to the next Spring/Fall) or email the individual faculty member who teaches the course to inquire on when it will be taught again.