ence of another object. Thus, whenever a constructor is called, a copy of an object is created.
Explanation:In the above program, classnum is declared with one integer member variable
n and three constructors. In function main(), the object J is created and 50 is passed to con-
structor. It is passed by value; hence, constructor with one argument is invoked. When object K
is created with one object, the copy constructor is invoked, object is passed, and data member is
initialized. The object L is created with assignment with object J; this time also copy constructor
is invoked. The compiler copies all the members of ...
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