What is the purpose of a private constructor?

A constructor can be made private by using (_) underscore operator which means private in dart. The same theory applied while extending class also, It’s also impossible to call the private constructor if it declares in a separate file.13 Mar 2019

Yes , a constructor can be private.

Yes , a constructor can be private.

Creating Private Constructor to Prevent Instantiation The solution is creating a private constructor. By declaring a private constructor, Flutter no longer creates the default constructor . To make the constructor private, you need to use _ (underscore) which means private.12 Eyl 2020

If a constructor is declared as private, then its objects are only accessible from within the declared class . You cannot access its objects from outside the constructor class.

If a constructor is declared as private, then its objects are only accessible from within the declared class . You cannot access its objects from outside the constructor class.

A constructor can be made private by using (_) underscore operator which means private in dart. The same theory applied while extending class also, It’s also impossible to call the private constructor if it declares in a separate file.13 Mar 2019