Write A C++ Program For Constructor Parameter With Default Value.

#include <iostream.h> 
 #include<conio.h> 
 #include <iomanip.h> 
 class MyClass 
 { 
    public: 
                        MyClass(int a =1, int b=2, int c=3) 
                  { 
                           MyClass::a=a; 
                           MyClass::b= b; 
                           MyClass::c=c; 
                  }; 
                          void show_numbers(void) 
                 { 
                         cout << a << ","<< b << " "<< c << "\n"; 
                 }; 
   private: 
                          int a, b, c; 
 }; 
              void main(void) 
           { 
                  clrscr(); 
                  MyClass one(1, 1, 1); 
                  MyClass defaults; 
                  MyClass happy(101, 101,101); 
                  one.show_numbers(); 
                  defaults.show_numbers(); 
                  happy. show_numbers(); 
                  getch(); 
           }