Which of the following is/are correct with reference to Abstract class and interface ? (a) A class can inherit only one Abstract class but may inherit several interfaces. (b) An Abstract class can provide complete and default code but an interface has no code. Codes :
Both (a) and (b) are true
In Java (and C#), a class may extend only one class, abstract or not, but may implement any number of interfaces, so (a) is true.
An abstract class can contain fully implemented methods and default behaviour, while a classic interface contains only method signatures with no code, so (b) is true.
Since both statements hold, the single-statement and neither choices fail.
Hence, Both (a) and (b) are true.
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