我学电子工程的，是不是真的要学programming才能找到工作呀

hi all, im currently an undergraduate majoring in ee at u of i and planning to graduate this decem. I been going to career fairs in the past couple wks。 i have a concentration in radio frequency, however a lot of the companies who are in the rf business require their employees to be us citizens, but i only have greencard, won't become a citizen until this october.
While i was at the career fair, i saw a tons of companies looking for ppl who know how to program. As an ee major, i took java during my freshmen yr, however, unlike riding a bike or driving a car, programming is one of those things that if u don't use it, u are going to forget it. Because I still have one more semester left at u of i, im wondering do i really really have to learn, for example, C++, to be able to find a job. I was originally planning to take wireless communication system next semester, but after going to the career fair, im not sure if learning more about stuff in rf will become beneficial to me in terms of finding a job.