What are the differences between abstract classes and interfaces in programming?
An example of an AI chatbot conversation about abstract classes and interfaces in various programming languages.
What are the differences between abstract classes and interfaces in programming?
Abstract classes can have both abstract methods and concrete methods, while interfaces can only have abstract methods.
Can you give an example of when to use an abstract class instead of an interface?
Use an abstract class when you want to provide a common base with shared code, while interfaces are better for defining contracts.
Are there any languages that treat abstract classes and interfaces differently?
Yes, for example, in Java, an abstract class can have state (fields), while an interface cannot. In C#, interfaces can have default implementations.
What about multiple inheritance? How do these concepts handle it?
Interfaces support multiple inheritance, allowing a class to implement multiple interfaces, while abstract classes do not.
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