abstract Archives - IT Nursery

Java, Programming

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How can I determine whether a Java class is abstract by reflection

I am interating through classes in a Jar file and wish to find those which are not abstract. I can solve this by ...

June 2, 2022
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Java, Programming

IT Nursery

Java abstract interface

Consider an example (which compiles in java) public abstract interface Interface { public void interfacing(); public abstract boolean interfacing(boolean really); } Why is ...

May 28, 2022
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Abstract methods in Python [duplicate]

This question already has answers here: Is it possible to make abstract classes in Python? (13 answers) Closed 3 years ago. I am ...

May 19, 2022
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Extend data class in Kotlin

Data classes seem to be the replacement to the old-fashioned POJOs in Java. It is quite expectable that these classes would allow for ...

May 18, 2022
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Is it possible to make abstract classes in Python?

How can I make a class or method abstract in Python? I tried redefining __new__() like so: class F: def __new__(cls): raise Exception("Unable ...

May 6, 2022
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Can we instantiate an abstract class?

During one of my interview, I was asked “If we can instantiate an abstract class?” My reply was “No. we can’t”. But, interviewer ...

April 29, 2022
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What is the difference between an abstract method and a virtual method?

What is the difference between an abstract method and a virtual method? In which cases is it recommended to use abstract or virtual ...

April 11, 2022
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Class is not Abstract and does not Override error in Java

How to reproduce that error as simply as possible: Java code: package javaapplication3; public class JavaApplication3 { public static void main(String...

April 4, 2022
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