Constructor (object-oriented programming): Difference between revisions

Revision as of 05:08, 25 October 2014

Revision as of 07:06, 26 October 2014

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If the programmer does not supply a constructor for an instantiable class, most languages will provide a ''[[default constructor]]''.

The behavior of the default constructor is language dependent. It may initialize data members to zero or other same values, or it may do nothing at all. In C++ a default constructor is required if an array of class objects is to be created. Other languages (Java, C#, VB .NET) have no such restriction.

It may initialize data members to zero or other same values, or it may do nothing at all.

In C++ a default constructor is required if an array of class objects is to be created.

Other languages (Java, C#, VB .NET) have no such restriction.

=== Copy constructors ===