What is the difference between interfaces and abstract classes in Java?
An example of an AI chatbot conversation about Java OOP interfaces and abstract classes.
What is the difference between interfaces and abstract classes in Java?
In Java, interfaces define a contract that classes can implement, while abstract classes can provide some method implementations.
Can you give me an example of when to use an interface instead of an abstract class?
Use an interface when you want to define a role that multiple classes can play, regardless of their position in the class hierarchy.
Are there any limitations to using interfaces?
Yes, interfaces cannot have instance variables or constructors, and all methods are implicitly public and abstract.
What about abstract classes? What are their advantages?
Abstract classes can have both abstract methods and concrete methods, allowing for shared code among related classes.
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