What is the difference between interface and abstract class?

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Om ji mishra · Answer

Interface have all methods having only declaration but no definition but in abstract class we have some concrete method.
In interface class, all the methods are public. While an abstract class may have private methods.
In the interface class, we cannot define the constructor. While in the abstract class we can define the constructor.
A class can inherit more than one interface classes. While any class can inherit only one class.
An interface class cannot be contain field while an abstract class can contain fields and constants also.

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What is the difference between interface and abstract class?

Om ji mishra

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