多选题Given: 3.public class MyTagHandler extends TagSupport { 4.public int doStartTag() { 5.// insert code here 6.// return an int 7.} 8.// more code here ... 18.} There is a single attribute foo in the session scope. Which three code fragments,inserted inde

题目
多选题
Given: 3.public class MyTagHandler extends TagSupport { 4.public int doStartTag() { 5.// insert code here 6.// return an int 7.} 8.// more code here ... 18.} There is a single attribute foo in the session scope. Which three code fragments,inserted independently atline 5,return the value of the attribute?()
A

Object o = pageContext.getAttribute(foo);

B

Object o = pageContext.findAttribute(foo);

C

Object o = pageContext.getAttribute(foo,PageContext.SESSION_SCOPE);

D

HttpSession s = pageContext.getSession();Object o = s.getAttribute(foo);


相似考题
参考答案和解析
正确答案: A,D
解析: 暂无解析