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What is the difference between and interface and an
abstract class ?
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Answer Posted / murali
1.interface contains only abstract methods and varibles
2.whenever a class is not implementing that interface that
class should be an abstract class
3.An interface cannot implement another interface but an
abstract class can implement onther interface
4.An interface can extend more than one interface
5.An abstract can implment more than one interface
| Is This Answer Correct ? | 5 Yes | 5 No |
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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 What are properties in oop? i am getting an of the type can not convert int to int *.
to overcome this problem what we should do? What are the types of abstraction? What are the data types in oop?
