Pointer to the data member.

Write a C++ program to find the area of the rectangle using the pointer to the data member.

Algorithm:

Step 1: Start the program.

Step 2: Create a class as the rectangle.

Step 3: Declare the pointer data members.

Step 4: Declare the member functions.

Step 5: Create an object in the main function.

Step 6: Call the member function.

Step 7: Stop the program.

Program Code:

#include<iostream.h>

#include<conio.h>

class rectangleUS.COM

{

int a,b,*x,*y;

public:

void getdata();

void area();

};

void rectangle :: getdata()

{

cout<<"Enter the length of the rectangle:";

cin>>a;

cout<<"Enter the breadth of the rectangle:";

cin>>b;

x=&a;

y=&b;

}

void rectangle :: area()

{

cout<<"The area of the rectangle is:"<<*x**y;

}

void main()

{

rectangle r;

clrscr();

r.getdata();

r.area();

getch();

}

Output:

Enter the length of the rectangle:12

Enter the breadth of the rectangle:15

The area of the rectangle is:180