The class declaration can also be done inside the other class. While declaring object of such class,
it is necessary to precede the name of the outer class. The name of outer class is called qualifier
name, and the class defined inside is called nested class.
The use of nested classes enhances the power of abstract data type and helps to construct
more powerful data structure. The qualifier (host class) and the nested class follow the same ac-
cess conditions. The nested classes are useful to hide a particular class and its objects within a
qualifier class. The following program illustrates ...
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