Constructors as Member Functions
Class objects can be initialized implicitly, using a constructor. A constructor is a class member function, but its syntax is more rigid than it is for other member functions. It cannot have an arbitrary name; you should give the constructor function the same name as the class. The constructor interface cannot specify a return type, not even void. It cannot return values even if it contains a return statement.
class Cylinder { double radius, height; public: Cylinder () // same name as class, no return type { radius=1.0; height=0.0; } // no return statement … } ;
When client code creates an object, the default constructor is called.
Cylinder c1; // default constructor: no parameters
It is called a default ...
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