Constructor overloading: When two or more than two constructors with the same name are there. but different in parameters is called constructor overloading.
#include<iostream.h>
#include<conio.h>
class demo
{
public :
demo() // without parameter
{
int a,b,c;
cout << "enter any number";
cin >> a;
cout << "enter any number";
cin >> b;
c=a+b;
cout << c << endl;
}
demo(int a,int b) //with parameter
{
int c=a+b;
cout << c << endl;
}
};
main()
{
clrscr();
int a,b;
cout << "enter any number";
cin >> a >> b;
demo d1; //constructor without parameter will be called at this line
demo d2(a,b); // constructor with parameter will be called at this line
getch();
}