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Questions - final

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

Thread Safety using final

Here is an example method for explaining thread safety: class Counter { private int counter = 0; public void increment() { counter++; } public int getValue() { return...
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user17862362

java

spring

multithreading

thread-safety

final

Votes: 0

Answers: 4

Latest Answer

I am also wondering if I can provide thread safe by using final for the necessary variable(s). If so, how can I perform this? Here is a complete implementation of your Counter class, using AtomicI...
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J&#248;rgen Fogh

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