Default Constructor in C++
What is a Default Constructor in C++?
Explanation
A Default constructor is that will either have no parameters, or all the parameters have default values. If no constructors are available for a class, the compiler implicitly creates a default parameterless constructor without a constructor initializer and a null body.
Result :
Default constructs x,y value:: 0,0
In the above example a default constructor has the default value of "0" for both the parameters.
Example :
| #include <iostream.h> class Defal { public: int x; int y; Defal(){x=y=0;} }; int main() { Defal A; cout << "Default constructs x,y value::"<< A.x <<" , "<< A.y << "\n"; return 0; } |
Result :
Default constructs x,y value:: 0,0
In the above example a default constructor has the default value of "0" for both the parameters.
