Overloading Constructor Example

#include<iostream.h>
#include<conio.h>
class Number
{
int m,n;
public:
Number()//Non-Parameterisze Constructor.
{m=5;
n=6;  }
Number(int a, int b)//Parameterisze Constructor.
{
m=a;n=b;
}
Number (int a)//Parameterisze Constructor.
{m=n=a;
}
void display()
{
cout<<"M = "<<m;
cout<<"N = " <<n;
}
};
void main()
{
Number num;
Number num2(5);
Number num3(5,6);
num.display();
num2.display();
num3.display();
getch();
}