JAVA CORE

[oak isle]

I am try'n to make method which contains in superclass this method should produce set of classes that call this method.
I hope the idea will become more clear from this fragment of code
Will try to clear everything by answering your questions, and yea, btw I don't shure that I need to use generics here

[tawny grotto]

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[oak isle]

JAVA CORE

[golden lintel]

yeah i have no idea what you're trying to do here

you can't create new instances of generic types

generics are reduced to Object at runtime due to type erasure

[tawny grotto]

Ask about your actual problem, not an attempted solution.

[golden lintel]

what problem is this method trying to solve?

[golden lintel]

@oak isle

[slate fulcrum]

you can't instantiate a generic type

wait wtf

#1 rule of asking for help in coding

SEND THE CODE

not a screenshot of the code

#❗︱how-to-get-help

[golden lintel]

yeah no that's not it

that's the problem in the method

[slate fulcrum]

can you send the actual code

[golden lintel]

what's the method itself for

[slate fulcrum]

oh wait

this isn't ur thread

tf

[golden lintel]

lmao

that was confusing

[slate fulcrum]

wait

this code just doesn't make sense

why does he have a generic

wtf

he has a list of pets who have a generic? and then he tries adding an instantiation of the generic T to a list that holds pet objects

huh

[golden lintel]

that's why i asked what i did

@oak isle see this link: https://xyproblem.info
and please answer: what problem is this method trying to solve?

[proven bane]

lol but true it was

[slate fulcrum]

wait wtf

I have never ever seen a static class

...

[golden lintel]

it's not a top level class

[slate fulcrum]

well a nested static class

[golden lintel]

inner classes are much less common than nested classes

[slate fulcrum]

why would you use it tho

idk it just seems like a confusing way to write code

[golden lintel]

separation of concerns. it's used a ton

Stream's Builder is a nested class

[slate fulcrum]

ah

[slate fulcrum]

no i didn't mean "why would you use it" in the rhetoric of "you shouldn't use it"

just like

when would u use it

cuz i genuinely don't know

[golden lintel]

ah

mb

[slate fulcrum]

altho actually if u have the time to explain it can u put it in general

#general

[golden lintel]

(this might be a topic of its own, if you want to continue on this stuff make a help thread pls)

[split dragon]

you can pass (Suppler<T>) which will create the object. your method cant really know if passed object has which contructor .. remember not all constructors dont need arguments. so its not generic anymore 🙂

calling code will be something similar to
petsContainer.create(Dog::new, amount);

[tawny grotto]

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