Answer / t.biren kumar patro

java is purely follow object oriented programming but c++ is
not.java does not have goto statement but c++ has.operator
overloading is not possible in java but in case of c++ is
not.only constructors are there in java but there are
constructor and destructors in c++.

what is use to destroy an object? illustrate.

5 Answers   TCS,

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what is the drawback of classical methods in oops?

0 Answers  

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what is meant by files?

4 Answers   Infosys,

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what is the abstract class,interface ,its difference with a programatic eg.? hi,recently i went for an interview they ask me what is abstract class ,interface and its difference I said abstract class contain abstact method ,abstract method is a method with no body.Abstract class cannot be instantiated.Abstract class is a base class it required derived class for the implementation of method. Interface is a syntactical contract that all derived class should follow it define properties ,method,events which are known as member of interface. Then They asked me what is the difference between them. I said abstract class interface 1.abstact class can implement method 1.interface cant 2.abstact class can contain constructor, 2.interface cant destructor 3.abstract class cannot support multiple 3.interface support inheritance etc Then they said some different answer I said dont no. Then they ask me when i should make abstract class for an project and when i should make interface. I said if suppose there is two class which must be having method with different logic then we sholud make abstract class. and if suppose we have two class having method .with different logic then we can make interface . Am i correct with my explaination.if not correct me .please provide me that when should we create abstract class and interface and what is difference .please help me

1 Answers  

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write a progra in c++ using class & object to find out wheather a given no. is prim or not.

2 Answers  

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explain sub-type and sub class? atleast u have differ it into 4 points?

0 Answers   Infosys,

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for example A,B,C,D are class all the 4 class contain one method who() but the method who() implementaion is differnet among each class. the relation among the 4 class are A is base class and is inherited by B and C.and from this two B and C where D is inherited. the question is i want to display the output who() method in all the classes(A,B,C,D)the output of who() method is diferrent amond all the class(A,B,C,D) ------A------ virtuval who(print a) override | | who(print b) B C override who(print c) | | -------D------ override who(print d)

2 Answers  

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How do you explain polymorphism?

0 Answers  

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In multilevel inheritance constructors will be executed from the .... class to ... class

2 Answers   ABCO, TCS,

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In multiple inheritance , to create sub class object , is there need to create objects for its superclasses??? in java and c++ both. Actually i have some information that is , all available members from its superclasses , memory created in subclass obj , so no need to create object for its superclasses...??? Thanks in Advance

1 Answers  

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What is difference between data abstraction and encapsulation?

0 Answers  

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In the following declaration of main, "int main(int argc, char *argv[])", to what does argv[0] usually correspond? 1) The first argument passed into the program 2) The program name 3) You can't define main like that

6 Answers  

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