What is the main difference between interface and abstract class in Java? | interface in java
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The short answer: An abstract class allows you to create functionality that subclasses can implement or override. An interface only allows you to define functionality, not implement it. And whereas a class can extend only one abstract class, it can take advantage of multiple interfaces
That’s a very generic concept that’s not limited to object-oriented programming. You can find it everywhere in the real world.
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