I have a ? about community colleges?

I am about get my diploma but in order to get into a state universtiy I would probably have to do a couple more courses and take the SATs over again ( i got a 1400 1st time). So I was thinking of going to a community college but I don't want to stay for a whole year. Is it possible to go to a community college for only a semester and then try to transfer to another school? And while in a community college do I have to take the courses I should be doing now in order to be considered for a state university?or can I just transfer with the hours done at a comm. college?