Page 230 - C++

(c) Write the definition of a class RING in C++ with following description : 4
Private Members
- RingNumber // data member of integer type
- Radius // data member of float type
- Area // data member of float type
- CalcArea() // Member function to calculate and assign
// Area as 3.14 ∗ ∗∗ ∗ Radius∗ ∗∗ ∗Radius
Public Members
- GetArea() // A function to allow user to enter values of
// RingNumber and Radius. Also, this
// function should call CalcArea() to calculate
// Area

- ShowArea() // A function to display RingNumber, Radius
// and Area
(d) Answer the questions (i) to (iv) based on the following : 4
class One
{
int A1;
protected:
float A2;
public:
One();
void Get1(); void Show1();
};
class Two : private One
{
int B1;
protected:
float B2;
public:
Two();
void Get2();
void Show();
};
Class Three : public Two
{
int C1;
public:
Three();
void Get3();
void Show();
};
void main()
{
Three T; //Statement 1
__________; //Statement 2
}
91/1 5 [P.T.O.