Java Interview Guide : 200+ Interview Questions and Answers - Abstract Class

Java Interview Guide : 200+ Interview Questions and Answers - Abstract Class

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Hard

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FREE Resource

The video tutorial explains abstract classes in Java, covering their definition, usage, and examples. It discusses how abstract classes allow for common functionality while requiring subclasses to implement specific methods. The tutorial also compares abstract classes with interfaces, highlighting their differences in purpose and syntax. Key examples include abstract map and Spring MVC's abstract controller. The video concludes with a discussion on syntactical differences and the unique scenarios for using abstract classes versus interfaces.

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3 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

Why can't you create an instance of an abstract class?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What are some examples of abstract classes mentioned in the text?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

How do abstract methods in an abstract class differ from methods in an interface?

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