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InterviewSolution
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Can we declare a class as Abstract without having any abstract method? |
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Answer» An abstract class is a class that cannot be instantiated on its own. It can be created in Java using the abstract keyword. A class can be declared as an abstract class without having an abstract method. In that case, the class created cannot be instantiated but can be inherited. A PROGRAM that demonstrates this is given as follows: abstract class BaseClass { void DISPLAY() { System.out.println("INSIDE the BaseClass"); } } class DerivedClass extends BaseClass { } public class Demo { public static void MAIN(String args[]) { DerivedClass obj = NEW DerivedClass(); obj.display(); } }The output of the above program is as follows: Inside the BaseClass |
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