給定某Servlet的代碼如下，編譯運行該文件，以下陳述正確的是() Public?class?Servlet1?extends?HttpServlet{ Public?void?init()?throws?ServletException{? }? Public?void?service(HttpServletRequest?request,HttpServletResponse?response)???? Throws?ServletException,IOException{? PrintWriter?out?=?response.getWriter();Out.println(“hello!”);? } }