J 1 Visa resumes and study plans are generally printed on A4 paper, and you can use Xiaosan. There is no requirement that it must be in a piece of paper. I think the examiner can not read the materials you prepared, but you should be fully prepared, just in case. This resume and plan just let the examiner know what you are doing in America, your background and so on. In addition, remember to answer the J 1 visa in fluent English. Generally this visa is not difficult. Wish you success!