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46.	What are the advantages of object oriented programming?
	Class data type allows programs to organize as objects that contain both data and functions. Data hiding or Abstraction of data provides security to data, as unrelated member functions cannot access its data. Polymorphism promotes, reduces software complexity, as multiple definitions are permitted to an operator or function. Inheritance allows a class to be derived from an existing class, thus promoting reusability of code.
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47.	What is integral promotion of data?
	When C++ did not find the exact match of a function call, the compiler will promote data to find the nearest match. For example, char type can be promoted to integer/float/double. Integral promotions are purely compiler oriented.
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48.	What are the possible integral promotions while invoking overloaded functions?
	Char data type can be converted to integer/float/double. Int data type can be converted to char/double/float. Float data type to integer/double/char. Double data type to float or integer.
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49.	List out any four operators that can be overloaded?
	+ ++ – -- *
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50.	What does the following statement mean?
	Void add :: show () The statement means that function show () is a member of the class add. And the function does not return any data type.
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