Which method in an abstract class must be overridden in its subclasses? Concrete methodsAbstract methodsClass methodsStatic methods
Question
Which method in an abstract class must be overridden in its subclasses? Concrete methodsAbstract methodsClass methodsStatic methods
Solution
In an abstract class, the methods that must be overridden in its subclasses are the Abstract methods.
Here's the step by step explanation:
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An abstract class in object-oriented programming is a class that cannot be instantiated and is typically used as a base class for other classes.
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Abstract methods are methods declared in an abstract class without any implementation. They are declared using the keyword 'abstract' and they do not have a body.
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When a class extends an abstract class, it must provide an implementation for all the abstract methods declared in the abstract class, i.e., it must override all the abstract methods. If it doesn't, then the subclass itself must also be declared abstract.
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Concrete methods, class methods, and static methods in an abstract class have their own implementation and do not need to be overridden necessarily. However, they can be overridden if needed.
So, the answer is Abstract methods.
Similar Questions
Which keyword is used to prevent a method from being overridden in the subclass?Question 4Answera.finalb.staticc.abstractd.private
Which of the following statements regarding abstract methods is false? _____ A. An abstract class can have instances created using the constructor of the abstract class.B. An abstract class can be extended, and an abstract class can be used as a data type.C. A subclass of a non-abstract superclass can be abstract. D. A subclass can override a concrete method in a superclass to declare it abstract.
Which of these is supported by method overriding in Java?Select one:AbstractionEncapsulationPolymorphismNone of the mentioned
What is method overriding?ADeleting a method from a superclass.BChanging the way a method works in a subclass.CRenaming a method in a subclass.DIncreasing the speed of a method.ECalling a method from another method.
In which scenario does Java NOT allow polymorphism?OptionsWhen using the method overloadingWhen overriding private methodsWhen using interface methodsWhen using abstract methods
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