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Question: Which statement is true about interface and abstract classes
Answer1: An abstract class may only contain incomplete methods (abstract methods)
Answer2: An interface may contain complete or incomplete methods
Answer3: A class may implement several interfaces, A class can only inherit one abstract class
Answer4: A class implementing an abstract class has to implement all the methods of the abstract class, but the same is not required in the case of an interface
Answer5: All
Answer: A class may implement several interfaces, A class can only inherit one abstract class

Explaination:
Link: External Explaination

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