Why can't we have instance(stack) of a class as a member of
the same class like eg.Class A{A obj;} as we can have self
refential pointer
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what is a binary overloading
what is function overloading..?
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You attempt to query the data base with this command: SELECT name, salary FROM employee WHERE salary=(SELECT salary FROM employee WHERE last name='Wagner' OR dept no=233) Choose most appropriate option from the following: 1)Sub-queries are not allowed in the where clause. 2)a multiple row sub-query used with a single row comparison operator. 3)a single row query is used with a multiple row comparison operator.
Can anyone please explain runtime polymorphism with a real time example??at what ciscumstances we go for it??
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Write a program to sort the number with different sorts in one program ??
difference between abstraction and encapsulation with progarammatic eg. hi,just recently i went for an interview .The interviewer asked what is the difference between abstraction and encapsulation with programmatic eg. I gave the answer as encapsulation mean hiding the relevant data which is not useful for the user, eg a electric fan .hiding the information how the electricity is converted into machanical energy. abtraction showing only the relevant data to the user eg electric fan. it look ,its color ,it design etc only relevant data. Then the interviewer asked me, give me some programmic eg .I Said Let assume a web form having control like textbox,button etc. The user can view textbox,button etc this is the eg of abstraction and when the user click on the button how he is redirected is not known by the user is the eg of the encapsulation. Am I Correct .was the answer given by me is perfect .now i am planing to go for an another interview should i give the same answer.IF not please suggest me a better answer.with some good eg Please help
what is the sylabus for priliminaries?
Explain virtual inheritance?
What are two types of polymorphism?