This is ppt presentation of polymorphism.

1.  PLYMORPHISM
OVERVIEW

2. 1. It’s a greek word.
means
forms
means
many
In programming polymorphism is the ability for objects of
different classes related by inheritance to response
differently to same function call.

3. A FATHER TO
HIS CHILD
A BROTHER
TO HIS
SISTER
A TEACHER TO
HIS STUDENTS
A SON TO HIS
PARENTS

4. When a program send the shape parameter for a triangle it will work as
When a program send the shape parameter for a rectangle it will work as
Base
Height
Wide
Length

5.  After the inheritance it is another important feature
of OOP.
 Polymorphism is use to keep the interface to base
class to its deived classes.
 Polymorphism can achieved by mean of virtual
functions.
 In Polymorphism one pointer to a base class object
may also point any object of its derived class.

6. There are 2 tipes of Polymorphism.

7. #include <iostream>
using namespace std;
class Shape {
protected:
int width, height;
public:
Shape( int a = 0, int b = 0){ width = a; height = b; }
int area() { cout << "Parent class area :" <<endl;
return 0; }
};
class Rectangle: public Shape {
public:
Rectangle( int a = 0, int b = 0):Shape(a, b) { }
int area () {
cout << "Rectangle class area :" <<endl;
return (width * height); }
};
class Triangle: public Shape {
public: Triangle( int a = 0, int b = 0):Shape(a, b) { }
int area () {
cout << "Triangle class area :" <<endl;
return (width * height / 2); }
};
Int main(){
Shape *shape;
Rectangle rec(10,7);
Triangle tri(10,5);
shape = &rec;
shape->area();
shape = &tri;
shape->area();
return 0;
}