What is a default constructor? How are an object’s instance variables initialized if a class has only a default constructor?
What will be an ideal response?
A default constructor is a constructor provided by the compiler when you do not
specify any constructors in the class. When a class has only the default constructor,
its instance variables are initialized to their default values. Variables that contain
numbers are initialized to 0, variables of type bool are initialized to false, and reference-
type variables are initialized to null.
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