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Question regarding Expression Language
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yekkala krishna
Ranch Hand
Joined: Mar 04, 2007
Posts: 105
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Hi,
Can anybody explain the below question. Answer is also available.
I am not understading how ${not map.c} return true.
And also ${map.d or map.a} here there is no key with 'd' in the map.And also it is not giving any error.
11. <% java.util.Map map = new java.util.HashMap();
12. request.setAttribute("map", map);
13. map.put("a", "true");
14. map.put("b", "false");
15. map.put("c", "42"); %>
Which three EL expressions are valid and evaluate to true? (Choose three.)
A. ${not map.c}
B. ${map.d or map.a}
C. ${map.a and map.d}
D. ${map.false or map.true}
E. ${map.a and map.b or map.a}
F. ${map['true'] or map['false']}
Answer: A, B, E
Thanks in Advance....
With Regards,
Rama
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Ankit Garg
Saloon Keeper
Joined: Aug 03, 2008
Posts: 9090
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Yekkala please Quote Your Sources when you post a question...
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SCJP 6 | SCWCD 5 | Javaranch SCJP FAQ | SCWCD Links
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subject: Question regarding Expression Language
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