Define A Constructor - What It Is And How It Might Be Called (2 Methods).

Define A Constructor - What It Is And How It Might Be Called (2 Methods).


  • 27 Dec, 2011

    Answer1constructor is a member function of the class, with the name of the function being the same as the class name. It also specifies how the object should be initialized.Ways of calling constructor:1) Implicitly: automatically by complier when an object is created.2) Calling the constructors explicitly is possible, but it makes the code unverifiable.Answer2class Point2D{int x; int y;public Point2D() : x(0) , y(0) {} //default (no argument) constructor};main(){Point2D MyPoint; // Implicit Constructor call. In order to allocate memory on stack, the default constructor is implicitly called.Point2D * pPoint = new Point2D(); // Explicit Constructor call. In order to allocate memory on HEAP we call the default constructor.

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