Answer Posted / hrindows@gmail.com

If there is a hierarchy of inheritance used, a class can be a super class for another class and a sub-class for another one at the same time.
In the example below, continent class is sub-class of world class and it’s super class of country class.
public class world {
..........
}
public class continenet extends world {
............
}
public class country extends continent {
......................
}

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