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Question: What is abstraction and abstract class in Java? Abstraction: Abstraction is a process of hiding the implementation details and showing only functionality
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How To Describe Interfaces In Interviews? An interface is a reference type in Java It is similar to class It is a collection of abstract methods An interface cannot be
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Java Interview Questions 1 5 Differences between Abstraction and Encapsulation 2 9 What is the difference between an Interface and an Abstract class ?
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Abstraction focuses on the outside view of an object (i e the interface) Encapsulation (information hiding) prevents clients from seeing it's inside view, where the
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Java Interview Questions and Answers – www in28Minutes Java Interview Companion - Books Videos COMPARE ABSTRACT CLASS VS INTERFACE ?
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What is Abstract class? These classes cannot be instantiated and are either partially implemented or not at all implemented This class contains one or more
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Interfaces contain no implementation code 2 An class can implement any number of interfaces, but subclass at most one abstract class 3 An abstract class can
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Creation of an object is not possible with an abstract class, but it can be inherited An abstract class can contain only an Abstract method Java allows only abstract
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