13 list and define the two types of polymorphism

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13. List and define the two types of Polymorphism. • Operator Overloading – The process of making an operator to exhibit different behaviors at different instances. • Function Overloading – Using a single function name to perform different types of tasks. The same function name can be used to handle different number and different types of arguments. 14. State Dynamic Binding. Binding refers to the linking of procedure call to the code to be executed in response to the call. Dynamic Binding or Late Binding means that the code associated with a given procedure call is known only at the run-time. 15. Define Message Passing. Objects communicate between each other by sending and receiving information known as messages. A message to an object is a request for execution of a procedure. Message passing involves specifying the name of the object, the name of the function and the information to be sent. 16. List out some of the benefits of OOP. • Eliminate redundant code • Saves development time and leads to higher productivity • Helps to build secure programs • Easy to partition work • Small programs can be easily upgraded to large programs • Software complexity can easily be managed
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17. Define Object Based Programming language. Object Based Programming is the style of programming that primarily supports encapsulation and object identity. Languages that support programming with objects are known as Object Based Programming languages. They do not support inheritance and dynamic binding. 18. List out the applications of OOP. • Real time systems • Simulation and modeling • Object oriented databases • Hypertext, Hypermedia and expertext • AI and expert systems • Neural networks and parallel programming • Decision support and office automation systems • CIM/CAM/CAD systems 19. Define C++. C++ is an object oriented programming language developed by Bjarne Stroustrup. It is a super set of C. Initially it was known as “C with Classes”. It is a versatile language for handling large programs. 20. What are the input and output operators used in C++? The identifier cin is used for input operation. The input operator used is >>, which is known as the extraction or get from operator. The syntax is, cin >> n1; The identifier cout is used for output operation. The input operator used is <<, which is known as the insertion or put to operator. The syntax is, cout << “C++ is better than C”; 21. What is the return type of main ()? The return type of main () is integer i.e. main () returns an integer type value to the operating system. Therefore, every main () should end with a return (0) statement. It’s general format is, int main () { ………… return 0; } 22. List out the four basic sections in a typical C++ program. • Include files • Class declaration • Member functions definition • Main function program 23. Define token. What are the tokens used in C++?(Nov/Dec 2011) The smallest individual units in a program are known as tokens. The various tokens in C++ are keywords, identifiers, constants, strings and operators.
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