Question

C++ please

27. How do you differentiate a destructor from the rest? 28. Can a static function call an instance one? 29. Can an instance function call a static one? 30. How many objects are created? class Account { public: string firstName; string lastName; double balance; Account* p; 31. Discuss the differences among the following access modifiers, public, private, and protected. 32. When do you use the following notation? . (dot notation) :: (scope resolution operator) -> (arrow notation) 33. In the life of a single object, how many times its constructors and destructors are invoked? 34. When is it constructors invoked? How about a destructor? 35. What are the advantages of functions overloading? 36. What is the advantage of inline function?

Answer 1

Answer 1: destructor name will be same as class name prefixed with ~
Answer 2: No.. as static belongs to class level where as instance belongs to object level
Answer 3: Yes as static is common to all objects

Answer 4:0 Objects..just we have created pointer
Answer 5:
public: can be accessed any where
private : can be access with in class and with in friend functions
protected: can be accessed in the child classes and with in class

Answer 6:
. to refer with reference variables
:: static functions
-> with pointer reference

Answer 7: Only once
constructor when an object is called
destructor when an object goes out of scope
Answer 8:
constructor when an object is called
destructor when an object goes out of scope

Answer 9:
improves the readability
Answer 10:
will reduce functtion calls

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