On 11.02.01, In C++ Program.
The following is a program in C++ to study default constructor. You can compile this in Borland C++ or Turbo C compiler to get the output. The code for the program is as follows:
#include
#include
#define pi 3.14
class circle
{
float r,a,c,x,y;
public: circle()
{
r=x=y=a=c=0;
}
void access()
{
cout<<”nEnter circle details:”;
cout<<”nRadius:”;
cin>>r;
cout<<”nEnter x and y coordinates of circle:”;
cin>>x>>y;
}
void area()
{
a=pi*r*r;
}
void circumference()
{
c=2*pi*r;
}
void disp()
{
cout<<”nCircle details:”;
cout<<”nRadius:”<
cout<<”nCoordinates:”<
cout<<”nArea:<
cout<<”nCircumference”<
}
};
void main()
{
clrscr();
circle c1;
c1.access();
c1.area();
c1.circumference();
c1.disp();
getch();
}
The output of the above program is:
Enter circle details
Radius: 5
Enter x and y coordinates: 5 6
Circle details:
Radius: 5
Coordinates: 5 6
Area: 78.5
Circumference: 31.4
Hope this helped
Also have a look at my other C++ Programs:
Search Element Using Binary Search Technique
Swap Two Numbers Using Call by Reference
Traverse an Array with a Pointer
Study The Structure of a Class
