1600 PMP mock questions 1400 CAPM mock questions 800 SCJP 6 mock questions 600 OCAJP 7 mock questions 590 OCPJP 7 mock questions 556 SCWCD 5 mock questions 500 OCEJWCD 6 mock questions pdfDownload (java,struts, hibernet etc)

C C++ interview questions

!!! C C++ interview questions !!!

What is a Null object?



It is an object of some
class whose purpose is to indicate that a real object of that class
does not exist. One common use for a null object is a return value from
a member function that is supposed to return an object with some
specified properties but cannot find such an object.

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