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There are errors on line :5,6,7,8
and no error on line :3,4

Please explain how ?
 
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class B can access a protected member declared in class A (located in a different package), only through inheritance i.e. only through a reference which is of type B (or a subclass of B).

class C can access a protected member declared in class A (located in a different package), only through inheritance i.e. only through a reference which is of type C (or a subclass of C).
 
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