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Question: 6
Which are the valid identifiers in Java?
A. fieldname
B. super
C. 3number
D. #number
E. $number
Explanation:
Valid identifiers in Java can start with a letter, underscore (_), or dollar sign ($), but not with digits or other signs. And identifiers can not be keywords.
Correct Answer: A,E 6 of 60
Question: 7
Which are valid Java keywords?
A. const
B. NULL
C. false
D. this
E. native
Explanation:
All the keywords in Java are lowercase. goto and const are keywords that are not used in Java programming language.
Correct Answer: A,C,D,E 7 of 60
Question: 8
WWW.CN-MPA.COM 2005-8-16 3:14:42
Which are valid integral expressions in Java?
A. 22
B. 0x22
C. 022
D. 22H
Explanation:
In Java integral has three forms: decimal, octal and hexadecimal. Octal values start with a zero and hexadecimal values start with 0x.
Correct Answer: A,B,C 8 of 60
Question: 9
Which one of the following ranges of short is correct?
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