Do 4-year colleges accept transfer students after one semester at community college?
Only if you qualified for acceptance to the school from the beginning, you are able to gain entrance to this school if you did not go to the two year college. Had already meet their requirements and did not need the help of going to the two year college.
By this you would have ether taken all the required courses to gain entrance into any college or university .You did this by taking only the classes that would get you into the university etc. This can be done at a public school, a school that only has a curriculum set up for entrance to public or private universities is known as a baccalaureate school. They teach nothing but college courses, IE no auto shop.