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JOSHUA Apr 23, 2021 10:55
Answer:   Abstraction is a process of hiding the implementation details and showing only functionality to the user. It displays just the essential things to the user and hides the internal information, for example, sending SMS where you type the text and send the message. You don't know the internal processing about the message delivery. Abstraction enables you to focus on what the object does instead of how it does it. Abstraction lets you focus on what the object does instead of how it does it.
In Java, there are two ways to achieve the abstraction.
o Abstract Class
o Interface

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