December 2008
Intermediate to advanced
1088 pages
26h 55m
English
book
A Programmer’s Guide to Java™ SCJP Certification: A Comprehensive Primer, Third Edition
by Khalid A. Mughal, Rolf W. Rasmussen
Content preview from A Programmer’s Guide to Java™ SCJP Certification: A Comprehensive Primer, Third Edition
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Appendix D Annotated Answers to Review Questions
1 Basics of Java Programming
1.1 (d)
A method is an operation defining the behavior for a particular abstraction. Java implements abstractions using classes that have properties and behavior. Behavior is defined by the operations of the abstraction.
1.2 (b)
An object is an instance of a class. Objects are created from classes that implement abstractions. The objects that are created are concrete realizations of those abstractions. An object is neither a reference nor a variable.
1.3 (b)
(2) is the first line of a constructor declaration. A constructor in Java is declared like a method, except that the name is identical to the class name, and it does not specify a return ...
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