What is the difference between an interface and a class in Java?

What is the difference between an interface and a class in Java?

In Java, a class is a blueprint for creating objects, while an interface is a contract that defines methods without implementing them.

Can a class implement multiple interfaces?

Yes, a class in Java can implement multiple interfaces, allowing for multiple inheritance of type.

What happens if a class implements an interface but doesn't provide implementations for its methods?

If a class implements an interface but doesn't implement its methods, it must be declared as an abstract class.

Can interfaces extend other interfaces?

Yes, interfaces can extend other interfaces, allowing them to inherit method signatures from multiple sources.