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A virtual function permits derived classes to replace the implementation given by the base class. The compiler makes sure the replacement is always known as whenever the object in question is actually of the derived class, even if the object is accessed by a base pointer rather than a derived pointer. This permits algorithms in the base class to be replaced in the derived class, even if users don't know about the derived class.
What does it mean to declare a 1. member function as a virtual A: (a) C++ virtual function is member function of any class, whose functionality may be over- ridden in
Program is to display the contents of file on a screen: Write a program to display the contents of file on a screen void main() { clrscr(); ifstream fin("ascii
Within programs we very often want to execute a different section of code, depending upon various conditions within C the If statement is used to achieve this. The If statement con
Train Station C++ Program A C++ program that provides a simple text based interface that will allow a user to create, edit, search, or delete a train schedule. The program will m
Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. #include float start_poin
C program to reverse the elements of array: #define rows 3 #define cols 3 void main() { int i=0,j=0; int arr[rows][cols];
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How to specify different memory sections for a variable using #Pragma?
We can combine more than one variable on the same line i.e. float number1,number2,number3; etc Sometimes we want to mix the variable types used on the same line, this could
Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b
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