Top "Abstract-class" questions

Abstract classes are classes which cannot be instantiated.

Interface or an Abstract Class: which one to use?

Please explain when I should use a PHP interface and when I should use an abstract class? How I can …

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When and Why to use abstract classes/methods?

I have some basic questions about abstract classes/methods.I know basic use of abstract classes is to create templates …

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What is an abstract class in PHP?

What is an abstract class in PHP? How can it be used?

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How to test abstract class in Java with JUnit?

I am new to Java testing with JUnit. I have to work with Java and I would like to use …

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Spring can you autowire inside an abstract class?

Spring is failing to autowire my object? Is it possible to autowire an object within an abstract class. Assume all …

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Why do abstract classes in Java have constructors?

Why does an abstract class in Java have a constructor? What is it constructing, as we can't instantiate an abstract …

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How and when to use an abstract class

This is my test program in Java. I want to know how much abstract class is more important here and …

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How to implement an abstract class in ruby?

I know there is no concept of abstract class in ruby. But if at all it needs to be implemented, …

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Abstract class vs Interface in Java

I was asked a question, I wanted to get my answer reviewed here. Q: In which scenario it is more …

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Abstract classes in Swift Language

Is there a way to create an abstract class in the Swift Language, or is this a limitation just like …

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