Hello Friends,
Classes have complicated internal structures, including data and
functions, object initialization and cleanup for classes is much more complicated
than it is for simple data structures. Constructors and destructors are special
member functions of classes that are used to construct and destroy class objects.
Construction may involve memory allocation and initialization for objects.
Destruction may involve cleanup and deallocation of memory for objects.
- Constructors and destructors do not have return types nor can they return values.
- References and pointers cannot be used on constructors and destructors because their addresses cannot be taken.
- Constructors cannot be declared with the keyword virtual.
- Constructors and destructors cannot be declared static, const, or volatile.
- Unions cannot contain class objects that have constructors or destructors.
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All type of questions which will be asked in written Technical round based on this topic is uploaded.
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