多项选择题
You need to store a floating point number,called Tsquare,in the session scope.
Which two code snippetsallow you to retrieve this value?()
A.float Tsquare = session.getFloatAttribute("Tsquare");
B.float Tsquare = (Float) session.getAttribute("Tsquare");
C.float Tsquare = (float) session.getNumericAttribute("Tsquare");
D.float Tsquare = ((Float) session.getAttribute.("Tsquare")).floatValue();
E.float Tsquare = ((Float) session.getFloatAttribute.("Tsquare")).floatValue;
相关考题
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多项选择题
Given an HttpServletRequest request: 22.String id = request.getParameter("jsessionid"); 23.// insert code here 24.String name = (String) session.getAttribute("name"); Which three can be placed at line 23 to retrieve anexisting HttpSession object?()
A.HttpSession session = request.getSession();
B.HttpSession session = request.getSession(id);
C.HttpSession session = request.getSession(true);
D.HttpSession session = request.getSession(false);
E.HttpSession session = request.getSession("jsessionid"); -
单项选择题
One of the use cases in your web application uses many session-scoped attributes. At the end of the usecase,you want to clear out this set of attributes from the session object. Assume that this static variableholds this set of attribute names: 201.private static final Set USE_CASE_ATTRS; 202.static { 203.USE_CASE_ATTRS.add("customerOID"); 204.USE_CASE_ATTRS.add("custMgrBean"); 205.USE_CASE_ATTRS.add("orderOID"); 206.USE_CASE_ATTRS.add("orderMgrBean"); 207.} Which code snippet deletes these attributes from the session object?()
A.session.removeAll(USE_CASE_ATTRS);
B.for ( String attr : USE_CASE_ATTRS ) {session.remove(attr);}
C.for ( String attr : USE_CASE_ATTRS ) {session.removeAttribute(attr);}
D.for ( String attr : USE_CASE_ATTRS ) {session.deleteAttribute(attr);}
E.session.deleteAllAttributes(USE_CASE_ATTRS); -
单项选择题
A web component accesses a local EJB session bean with a component interface of com.example.Accountwith a home interface of com.example.AccountHome and a JNDI reference of ejb/Account. Which makesthe local EJB component accessible to the web components in the web application deployment descriptor?()
A.
B.
C.
D.
