Write A C++ Program To Make A Call Class Constructor Or Not During Class Array Declaration.

#include <iostream.h> 
 #include<conio.h> 
 class powers 
 { 
     int x; 
          public: 
                       powers() 
                    { 
                       x=0; 
                       cout << "\nno initializer\n\n"; 
                    } 
                       powers(int n) 
                   { 
                       x=n; 
                       cout <<"\n\ninitializer:"<< x; 
                    } 
                       int getx() { return x; } 
                       void setx(int i) { x =i; } 
  }; 
           void main() 
       { 
           clrscr(); 
           powers ofTwo[] = {1, 2, 4, 8, 16}; // initialized 
           powers ofThree[5]; // uninitialized 
           getch(); 
       }