What is abstraction and what is the advantage of using an abstract class?
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
What is abstraction and what is the advantage of using an abstract class?
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- To be a subclass of an abstract class, a subclass must implement all of the abstract methods of its parent. Is this accurate or incorrect??When can the phenomenon of multiple inheritance give rise to ambiguity? How can this problem be solved? What exactly are base classes that are virtual? What exactly is the importance of them?Provide an example of why you might prefer an interface over an abstract class. Additionally, describe a situation in which you would prefer an abstract class to an interface.
- What are the fundamental differences between an abstract classes and interface?Answer by true or false 1.An abstract class can contain only abstract methods . 2. An abstract class that extends another abstract class must provide an implementation for all the abstract methods that are defined in the superclass . 3. A parent's constructor can be invoked using the super reference . 4. All Java classes are derived , directly or indirectly , from the Object class . 5. The child of one class can be the parent of one or more other classes .It is necessary for a subclass of an abstract class to implement all of the abstract methods that are defined for the parent class. Is there a mistake or is it accurate?
- To be a subclass of an abstract class, a subclass must implement all of its parent's abstract methods. Is this right or incorrect?Both abstract classes and interfaces may be used to specify the expected behavior of an object.What should be taken into account when deciding whether to utilize an interface or an abstract class?When inheriting from an abstract class, a subclass is obligated to implement each and every one of the abstract methods that the parent class provides. Is there a mistake in my understanding of this?