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Java Inheritance and abstract
0 Answer(s)      4 years and 7 months ago
Posted in : Java Interview Questions


1) Why we need to write the separate Interface in which we are not doing any operation except declaring empty abstract method and implementing this interface to force the subclass to implements all the abstract methods. If the subclass need to use this methods then he can write this in his own class instead of implementing the interface.
2) May i know the correct real time example in which i can decide i have to used i have to used abstract class or interface. Because both provides the abstract method.
Thank you,

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