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Questions - superclass

Is there a way to declare a final attribute in an abstract super class and initialize the value in the sub class?

I'd like to have an abstract super class Location with a final attribute locationNumber. But the locationNumber should be initialized in the subclass itself like Market or Mosque. Is there a clean way...
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DiDi

java

subclass

final

superclass

Votes: 0

Answers: 2

Latest Answer

Thats how you would do it: public abstract class Location { private final int locationNumber; Collection<Figure> visitors; public Location(int locationNumber) { this.locatio...
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Tarmo

Why do I have to set AuthenticationManager twice

In my application I've implemented X.509 authentication I created the following class named X509AuthenticationFilter that extends AbstractPreAuthenticatedProcessingFilter provided by spring security b...
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Joe D

java

spring

extends

superclass

Votes: 0

Answers: 1

Latest Answer

I added my own AuthenticationManager to the class So you effectively shadowed existing authenticationManager instance declared in AbstractPreAuthenticatedProcessingFilter. If you don't need to acces...
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rkosegi

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