final String selectCourses = request.getParameter("selectCourses"); if (selectCourses != null) { request.setAttribute("selectCourses", selectCourses); } return selectCourses;
final String selectCourses = request.getParameter("selectCourses"); if (selectCourses != null) { request.setAttribute("selectCourses", selectCourses);
	private String readAndSetSelectCoursesParameter(final HttpServletRequest request) {		final String selectCourses = request.getParameter("selectCourses");		if (selectCourses != null) {			request.setAttribute("selectCourses", selectCourses);		}		return selectCourses;	}