試題詳解

 41. HttpSession session = null; 

 42. / / insert code here

 43. if (session = = null) { 

 44. / / do something if session does not exist 

 45. } else { 

 46. / / do something if session exists 

 47. } To implement the design intent, which statement must be inserted at line 42?
(A) session = response.getSession ();
(B) session = request.getSession ();
(C) session = request.getSession (true);
(D) session = request.getSession (false);
(E) session = request.getSession ("jsessionid");