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SidKid

4/4/2025

how does one kill threads in Java? (I am unable to find something that works for Java 23)

all the ones I can find are deprecated

zeto

4/3/2025

Can't run Jar file Error: JavaFX runtime components are missing

So I'm trying to build an artifact of my JavaFX program but when i try to run the jar file I keep getting Error: JavaFX runtime components are missing, and are required to run this application Not sure what I'm missing here....

kkeiiii

4/3/2025

centralising column header

Heys guys can someone tell my why this isnt centralised and how i can centralise it

Peter Rader

4/3/2025

Push programatically

I need to push foobar.txt programatically. How to do that? This is my approach: ```package b; import java.io.File; import java.io.IOException; import java.net.InetSocketAddress; import org.apache.commons.exec.*;...

kathir💛

4/3/2025

roadmap to learn Java

I need the java roadmap to learn java for beginning level.

dans132

4/2/2025

Help with Java Crazy Eights Game(GUI)

I have the offline version implemented but im having difficulties getting the online version of the game to work . I need to be able to player 2,3 or 4 player online by me being client or server

Shruti

4/1/2025

Issue: API Returning Empty JSON Objects {}

facing an issue in my Spring Boot project. My API for fetching products is returning empty objects: [{}, {}, {}, {}] But I have verified that data exists in my H2 database.

Balsa

4/1/2025

Looking for guidance and help.

Hello folks, I am just looking for guidance how to solve this task. I know it's easy, so please consider I am a beginner here. 🙂 1. Create a program that allows input of student data. For each student, the following information is known: name and surname, index number, and a list of subjects. For each student in specialist studies, the same data as for a regular student should be known (implemented using inheritance), along with the name of the specialization. The maximum number of subjects for regular studies is 30, and for specialist studies is 10. Enable the display of all data for both types of students....

sean💤

4/1/2025

Game exited code 1

Hi how can i fix game exited with code 1 this happened afternoon I couldn't know how to fix this🥲

genji

3/30/2025

I am finding client

I am senior fullstack develoepr I can develop perfect all porject...

durandalAI

3/30/2025

Connection problem keycloak - java app within docker

Hi there, I am having some problems trying to connect my keycloak - java app using docker, first I face the problem of having referenced in my properties the keycloak container (http keycloak:8080/auth) and my browser was not able to resolve that URI, that was fixed using KEYCLOAK_FRONTEND_URL to change the requests to localhost:8012/auth, however now I am facing the problem to trying to log out from my app , I try the option backchannel logout url setting it to keycloak:8080 but still not work...

Franscis123$#

3/30/2025

Searching DB registers by other field instead PK using JPA

I have a project using JPA without any framework. I want to search registers by others fields like 'username', 'password' instead the primary key. I need to use SQL with JPA to it? ``` public User findUser(Long id) {...

AngelOfCreation

3/30/2025

Mendelian genetics in Forge 1.20.1

I need to create a framework called GeneticMob as a mixin to Animal.class in Forge 1.20.1. I then want to create mixins for individual animals that extend GeneticMob. An example would be PigMixin that extends GeneticMob. GeneticMob should provide common methods like getMainGene, getHiddenGene, etc. But these classes rely on enums called Gene that are specific to each animal. Is there a way for me to tell GeneticMob that there will be an enum called Gene so the compiler will let me work with it before its created? My overall idea is to create a system that lets me easily give other mobs mendelian genetics like the Panda has. If there is a better way of doing this I'm all ears....

Glenn-Thomas

3/30/2025

Java newbie (1 year). Im trying to write a chat app in java..

Im using JPQL and PostgreSQL. Im having problems with the mapping, it worked okay before, but after i used copilot on it, it broke... Could anyone help me please? code: https://github.com/h679172/chatapp.git Thank you...

CapitanTortugaYT

3/30/2025

Java/Processing PacMan

I'm making my own pacman for a class project, but I can't get the enemies to follow the player correctly

message.txt

Kale Vivi

3/29/2025

Hexagonal architecture question

Hi, I have a question on hexagonal architecture here. Does anyone know what it should be? https://stackoverflow.com/questions/79542731/hexagonal-architecture-question-with-respect-to-ports...

Helithon

3/29/2025

im making a minecraft Plugin for paper, but i need help actually... you know, making it

im a server owner and content creator for minecraft and completely clueless when it comes to coding, so im hoping anyone from the code scene can help me make the plugin, the plugin runs off of the idea of classes, example of one class: the meleeist; 2 abilities, ability names: seismic slam, beserker charge, if this sounds interesting to you, message me so i can invite you to the discord and we can discuss the plugin in DMS, (u join the smp discord so i can give you publicity because im broke asf...

lars

3/29/2025

Starting with profiling. any good suggestions for books

I am trying to understand software profiling from a theoretical perspective. Any suggestions for books/articles/video lectures are appreciated.

Wither Well

3/29/2025

Stack Interface, Deque Implementation: Worth it?

First time poster here, so please be lenient :) I have learned that the Stack class in Java inherits Vector class, which breaks LIFO contract. I also learned that Deque (a double-ended queue, seems contradictory) does not strictly maintain LIFO contract and is not thread-safe as far as I know (though this can be solved with ConcurrentLinkedDeque). Anyway, I have found a solution being:...

🌗 キラー 🌕 パパ 🌓

3/28/2025

lab 1-3

having trouble with code

Gaming

Programming

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Join the Java Community | Help. Code. Learn. server to ask questions!

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