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Explain abstract class in Java

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Paper : Java FAQ (Frequently Asked Questions and answers) for freshers | Platform : Object-oriented programming Language | Category : Programming FAQs

Abstract classes are used to achieve abstraction. It is declared by using the "abstract" keyword. It can have both abstract and non-abstract methods. Abstract classes have declaration and implementation of non-abstract methods but the implementation of abstract methods is inside the class where it is extended. 

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