Answer Posted / amit kumar

Poly means “many” and morph means “form”. In the context of
object-oriented systems, it means objects that can take on
or assume many different forms. Polymorphism means that the
same operation may behave differently on different classes.

Polymorphism allows us to write generic, reusable code more
easily, because we can specify general instructions and
delegate the implementation details to the objects involved.
Since no assumption is made about the class of an object
that receives a message, fewer dependencies are needed in
the code and, therefore maintenance is easier. For example,
in a payroll system, manager, office worker, and production
worker objects all will respond to the compute payroll
message, but the actual operations performed are object specific

Explain the advantages of inheritance.

1151

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What is the difference between procedural programming and oops?

1136

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How does polymorphism work?

1147

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Why is oop useful?

1110

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What is overloading in oops?

1165

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Is html an oop?

1075

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How to call a non virtual function in the derived class by using base class pointer

6569

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Why interface is used?

1024

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What is the importance of oop?

1099

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Why do we need oop?

1207

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if i have same function with same number of argument but defined in different files. Now i am adding these two files in a third file and calling this function . which will get called and wht decide the precedence?

3533

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What are benefits of oop?

1138

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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

2137

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#include #include #include #include void select(char *items, int count); int main(void) { char s[255]; printf("Enter a string:"); gets(s); select(s, strlen(s)); printf("The sorted string is: %s.\n", s); getch(); return 0; } void select(char *items, int count) { register int a, b, c; int exchange; char t; for(a = 0; a < count-1; ++a) { exchange = 0; c = a; t = items[ a ]; for(b = a + 1; b < count; ++b) { if(items[ b ] < t) { c = b; t = items[ b ]; exchange = 1; } } if(exchange) { items[ c ] = items[ a ]; items[ a ] = t; } } } design an algorithm for Selection Sort

2554

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What causes polymorphism?

1139

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