A class does so by defining a special constructor, known as the default constructor. This constructor is called the default constructor because it is run “by default;” if there is no initializer, then this constructor is used . The default constructor is used regardless of where a variable is defined.
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A constructor is automatically called when an object is created . It must be placed in public section of class. If we do not specify a constructor, C++ compiler generates a default constructor for object (expects no parameters and has an empty body).24 Şub 2022
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