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what is polymorpsim? what are its types?
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Answer / a
Polymorphism means more than one form.Polymorphism is the
concept to use a function or a operator in more than one
form.Polymorphism in c++ is applied through the concept of
Function overloading,Operator overloading and via virtual
function.
| Is This Answer Correct ? | 21 Yes | 2 No |
Answer / niranjan ambati
By using "virtual" keyword infront of "implementation
methods" declarations in the class, polymorphisim can be
achieved. late binding(run time execution)
,Encapsulation(APIs), avoid ambiguity between multi
inheritance can be achieved thru polymorphisim.. Using
polymorphisim, the objects will call correct methods at run
time by using virtual pointer table.
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / sudha
polymorphism is having more than one form.
Types of polymorphism are Run-time and compile-time
polymorphism
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / varsha agrawal
polymorphism means "poly" means 'one' and "morphism" means
'forms'. so we can say that polymorphism means one name
which has multiple forms.
ex:-blood group.
polymorphism are two types:
1) Static polymorphism: this is taken place in compile time.
2) Dynamic polymorphism: this is taken place in compile time.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / yuvi
polymorpsim is the form of operation and function. you can
use polymorpsim in your programing langauge
the simple difnation for polymorpsim is one entity can
exist diffrent type of form.
| Is This Answer Correct ? | 4 Yes | 4 No |
Answer / sandhya.v
when a base class has to be changed with some minor or
major changes, it can be done through two methods . The
first method is using the keyword "new" and the second
method is by using "Override",The concept of using this is
called of olymorphism , The types are ad hoc polymorphism
and parametrized polymorphism..
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / maahi
polymorphism is an oops concept,it meanse the ability to
take more than one form.polymorphism allows different object
ti respond to the same message in diffent ways.
there are two
types of polymorphism.
1.compile time
2.run time
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / jaimin patel
polymorpsim is the greek term ,it is the ability to take more than one form.as example one operation may exhibit different behaviour in diffrance time.
| Is This Answer Correct ? | 0 Yes | 0 No |
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Question In a class, there is a reference or pointer of an object of another class embedded, and the memory is either allocated or assigned to the new object created for this class. In the constructor, parameters are passed to initialize the data members and the embedded object reference to get inialized. What measures or design change should be advised for proper destruction and avioding memory leaks, getting pointers dangling for the embedded object memory allocation? Please suggest. Question Submitted By :: Sunil Kumar I also faced this Question!! Rank Answer Posted By Re: In a class, there is a reference or pointer of an object of another class embedded, and the memory is either allocated or assigned to the new object created for this class. In the constructor, parameters are passed to initialize the data members and the embedded object reference to get inialized. What measures or design change should be advised for proper destruction and avioding memory leaks, getting pointers dangling for the embedded object memory allocation? Please suggest. Answer # 1 use copy constructors 0 Shanthila There is something to be taken care in destructor, in copy constructor, suppose the memory is assigned to the embedded member object pointer with the parameter passed value, but if some other objects of different class also are pointing to this memory, then if some one deletes the object then this class member pointer object will become dangling, or if the object is not deleted properly then there will be memory leak. Please suggest the design change required to handle or avoid this situation
suppose A is a base class and B is the derved class. Both have a method foo which is defined as a virtual method in the base class. You have a pointer of classs B and you typecast it to A. Now when you call pointer->foo, which method gets called? The next part of the question is, how does the compiler know which method to call?
STL 
