Happy Codings - Programming Code Examples

Html Css Web Design Sample Codes

CPlusPlus Programming Sample Codes

JavaScript Programming Sample Codes

C Programming Sample Codes

CSharp Programming Sample Codes

Java Programming Sample Codes

Php Programming Sample Codes

Visual Basic Programming Sample Codes

C++ Programming Code Examples

C++ > Beginners Lab Assignments Code Examples

Program for Virtual Function:

Program for Virtual Function:

A virtual function is a special form of member function that is declared within a base class and redefined by a derived class. The keyword virtual is used to create a virtual function, precede the function's declaration in the base class. If a class includes a virtual function and if it gets inherited, the virtual class redefines a virtual function to go with its own need. In other words, a virtual function is a function which gets override in the derived class and instructs the C++ compiler for executing late binding on that function. A function call is resolved at runtime in late binding and so compiler determines the type of object at runtime. 

#include 
using namespace std; 
class b
{
public:
virtual void show()
{
cout<<"\n  Showing base class....";
}
void display()
{
cout<<"\n  Displaying base class...." ;
}
};
class d:public b
{
public:
void display()
{
cout<<"\n  Displaying derived class....";
}
void show()
{
cout<<"\n  Showing derived class....";
}
};
int main()
{
b B;
b *ptr;
cout<<"\n\t P points to base:\n" ; ptr=&B; ptr->display();
ptr->show();
cout<<"\n\n\t P points to drive:\n"; d D; ptr=&D; ptr->display();
ptr->show();
}

Returns a String representation of Integer - Converting an integer to a string with a fixed width. If the width is too small, the minimum width is assumed. Generate digit characters in reverse order. Shift the string to the right

Swapping Two Numbers Without Variable - Imagine we have two number 1 and 2 stored in x and j respectively now. If we add x and j (1 + 2) and store it to x then x will become 3 and j is still 2. We subtract j (2) from new value of

C++ Additions Subtractions Multiplication - Perform addition, subtraction, multiplication and division of any two numbers in 'C++', you have to enter the 'two number' and enter the operator to perform the particular operation

C++ Language Encapsulation is a Process - Here we have two "data members" num and ch, we have declared them as private so that they are not accessible outside the class, this way we are hiding the data. The only way to

Find Sum of Natural numbers from 1 to N - Program find the sum of all natural numbers between 1 to n. Input upper limit to find sum of natural numbers. Store it in some variable say N. Initialize another variable to store sum

Header File for Stack in the C++ Language - Remove most recently inserted item. Return most recently inserted item. Return, remove most "recently inserted" item. Return true if empty; else false. Return true if 'full' and else

Doubly Linked List Sample in C Language - C Language program code doubly linked list. Create Linked List. Allocate memory for new node. If head is empty, create new list. Move to the end of the list. Insert link at the end of

Check a Given Number is Perfect Number - This C program code checks whether a given number is perfect number. Perfect number is a number which is equal to sum of its divisor. For eg,divisors of 6 are 1,2 and 3. The sum of