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Questions tagged [java]

Software regarding Java development tools and libraries for the Java programming language.

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What are the best resources to consult to assist in the selection of a technologies for UI and backend development? [closed]

We are in the process of developing an online permitting application that collects data and allows the client to make payment(s). I have been tasked with determining what the best options/versions ...
user2812707's user avatar
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Is there a spreadsheet API facade for Java?

There are multiple Java libraries for different kinds of spreadsheets, e.g. Apache POI for Microsoft Excel files, jOpenDocument for ODS (OpenDocument Spreadsheets) files and Google Sheets API for ...
Marco Eckstein's user avatar
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Open-source Java/JVM back-of-the-book index generation library

I'm currently working on some automation software for the creation of non-fiction books (actual, printed books). As part of this, I need to be able to create a reasonable-quality "back of the ...
raner's user avatar
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Alternatives to using Apps Script because of the 30 mins max run time

Hi I'm doing a task which takes around 10 hours. Task: Call an API 100,000 times for 100,000 inputs and store results in a google spreadsheet. Since apps script has a time limit of 30 mins, I have to ...
user83477's user avatar
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Is there a library for solving nonlinear systems of equations like scipy for Java/Kotlin?

Is there a library like scipy.optimize, where there is an fsolve function for solving nonlinear systems of equations for Java or Kotlin?
Tamada's user avatar
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Is there any open source pdf editor tools for pdf editing(should contatins all the editing tools like marker,eraser,text ..etc)using java spring boot?

I am trying to implement a pdf editing tool on my project using java spring boot. It should be open source and it should contain markers, eraser etc. It should display the pdf using urls. -then we ...
sana arya's user avatar
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Kotlin persistence abstraction

In preparation for a Kotlin desktop app (multiplatform JVM) I'm looking for local persistent data storage that is more abstract than an SQL database. In short, something like androidx.room without the ...
rwst's user avatar
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Measure FPS of an arbitrary window

I would like to measure the refresh rate of an arbitrary window. I am not sure, if there is a generic way to do this, but on the other hand, some FPS measuring tools exist: XBox Game Bar, however, ...
RcCookie's user avatar
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What are the mathematical api of today, for Java?

The level 0 of mathematics in Java are java.lang.Math + java.util.swing, but they are quite useless, unless you want any operation to take days being written. apache.commons.math3 comes in handy to ...
Marc Le Bihan's user avatar
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Translating keyboard inputs to local characters using Java

I want to write a small program in Java that can help me automatically translate some keyboard input combinations to local characters as I type anywhere on my computer. For example, A+1 -> Å, A+2 -&...
Mebrahtom Guesh's user avatar
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API for binance block chain for Java

I'm looking for some API to binance smart chain (not to binance exchange). I want to built an app where i can check price / buy / sell some crypto based on CA from it. (e.g ...
Matios's user avatar
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Recommendation for API-Gateway to split traffic

I'm looking for recommendations for an API-Gateway that's able to split SOAP traffic based on a parameter value in the body. It can be open source or enterprise. The requirement is to receive the soap ...
Ruin's user avatar
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Lightweight General Purpose Job Scheduler/Execution Engine in Java

We have been using Apache Spark jobs launched via Apache Livy for running some jobs. Because of the reduced scale requirements, we no longer need to use Spark. I am looking for a general-purpose ...
swap310's user avatar
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Using Java, what other libraries are avalible for easily converting CSV files to DBF (dBase/xBase)?

I am currently writing an android app that interfaces with database files and was considering a way to export data neatly without errors. Currently every library I can find has one issue or another ...
cellswithincells's user avatar
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Is there a existing library for search function (e. g. include/exclude, and/or)?

I have a JavaFX application with a TableView. The user can filter the displayed rows with a search term they enter in a TextField. Currently I iterate over all cells and use simply String.contains(). ...
webracer999's user avatar
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Nice admin interface for Spring applications similar to Django Admin

I am a big fan of building Spring based Java applications. Recently I worked a little in Django and saw the Django Admin that is automatically generated for the app - and it blew my mind. Since then ...
er453r's user avatar
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Download both Oracle Java and open-source JDK on same computer?

Is it ok to download both versions of Java on one computer - Oracle Java and open-source Java? Will the computer have problems? Will the editor - Eclipse or IntelliJ - have problems? Do I need a tool ...
user82021's user avatar
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Java Library for parsing Persistence Annotations

Need a library that can parse ResultSet into a java object with all the javax.persistence annotations, without using any ORM (like hibernate), and to generate sql for insert/update/delete. Is there ...
user3635998's user avatar
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is there a open source backward static slicing tool in Java that is actually maintained and easy to use?

A backward slice identifies those statements that affect the value of the attribute. For example: x = 1; y = 2; z = y-2; r = x; z = x+y; /* the slice point is the end of the program */. Here, ...
Exploring's user avatar
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Metrics - Recommended tool to evaluate classic OO-metrics for java program

I am currently taking a course about Software Quality, and we have been introduced to some classic metrics used for software quality evaluation, such as LCOM, RFC (Response for Class), CBO (Coupling ...
Yan Zhuang's user avatar
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Process pooling in Erlang

I have recently moved from Java to Erlang. I am very much interested in Erlang processes. I am looking for a Process pool in Erlang similar to Java Thread pool or Akka Router. As I do not find them in ...
Mohan's user avatar
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What is a good alternative for ORMlite?

I am looking for an alternative ORM wrapper library to ORMlite as I found that the current version 6.1 has the follwing vulnrabilities: CVE-2022-23305 CVE-2022-23302 CVE-2022-23221 CVE-2021-42392 CVE-...
Shatazone's user avatar
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Tomcat Configuration Editor or Tool

The tomcat configuration is been manually edited always prone to human errors always. This causes delays during deployment or production. This is a big problem. Is there is any tool available to ...
Int Prep's user avatar
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Best library java to write dxf file

I am looking for the best library to write a dxf file in java Before trying to convert png image to dxf but I can't, so now I want to write the image directly My need is a library that can draw lines ...
Dj.B's user avatar
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Selecting Qbarcode among several images in java,What kind of library is needed?

I use package com.google.zxing.qrcode to decode QRCode and I use [OpenCSV for image processing to image noise removal. Now the question is this: what kind of library or method is needed in Java to ...
Ddll's user avatar
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How can I find the right libraries using Maven Central Repository?

I'm coming from JavaScript/NPM and beginning to move into Java/Maven Central Repository. I found NPM to be very easy to find popular and useful packages. This is supposedly the official search site ...
Nocturno's user avatar
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What database should I use for a location tracking android application?

So I want to develop an online mobile application using android studio and java. A client mobile application that will send its location to the admin mobile application, so it will be using GPS. what ...
Timow's user avatar
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Need a label generator utility

I need a utility that can be integrated with Java and can generate label (attached) by passing the values dynamically. The utility can be paid. I am looking for multiple labels on a sheet, such as A4 ...
romil gaurav's user avatar
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Caching library for Android

I'm looking for a caching library for Android. It must: be memory-based support serialization/deserialization so it can be persisted on application shutdown support time-based eviction support ...
dzieciou's user avatar
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blockchain database in java

I have some data to store in database. Those data should be immutable. I thought that it will be nice to make it immutable by using blockchain. Implementing something like this from scratch might take ...
skoczo's user avatar
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An application-level Chaos Engineering library in Java, similar to Simmy in .NET

At my work, we are moving away from C# / .NET Core and toward the Java ecosystem. That's fine and all, but .NET has some really cool libraries that I have yet to discover an equivalent for in Java. ...
Stephen G Tuggy's user avatar
1 vote
0 answers
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Free code quality / code coverage plugin or service for GitHub

I am looking for a plugin or service that I can connect to the GitHub repository so that: checked the quality of the code, generate code coverage reports in the project The project is Open Source in ...
dawciobiel's user avatar
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Sandboxed language interpreter library for Java for string manipulation

I'm looking for a java library that I could embed into my project that would allow me to fetch 'functions' from a server that would either check if a string matches some pattern, or transform strings (...
Bwmat's user avatar
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Is there a java forms library similar to the Symfony one?

I use Symfony and I love the very powerfull and customizable form library. I am thinking of switching to java and I am looking for a similar library. I found formio.net (but it is not well documented)....
Javaddict's user avatar
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Automatic differentiation in Java for optimal control

I am trying to solve an automatic-control-like problem in Java (triple integrator dynamics with direct multiple shooting method). Since this needs to be numerically integrated the gradients of the ...
SAVG8778's user avatar
1 vote
0 answers
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How to host Java application package similar to Python's pypi.org?

I have a Java application which I would like to host on some sort of free hosting website. Later, users can install that application via a command-line tool and use it easily. While searching, I found ...
BATMAN_2008's user avatar
1 vote
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44 views

Data mapping tools like dataweave

I’m planning to build a data mapper (Java object <-> XML <-> JSON, etc) as robust as DataWeave and more advanced than AtlasMap to support my integration workflow. Which basically can parse ...
William P.'s user avatar
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Is there a more reliable pure Java based library than HtmlUnit or ui4j for returning and manipulating JavaScript rendered web pages?

I need a headless browser, or similar, pure Java library like HtmlUnit that supports JavaScript to reliably render all web page content just as a manual browser would do. Although HtmlUnit claims to ...
Marty's user avatar
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Library recommendation: best Java/Spring Boot library to create a TCP server?

I am looking for a library to create a TCP server for a Java/Spring Boot application. The scale I'm looking at is serving around 5000 requests per minute.
Saif's user avatar
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Is there something similar to PostSharp logging, but for Java?

Using PostSharp, one can add and customize logging to an existing .NET project. For example you can log the entry and exit of every method or all methods except getters and setters, along with ...
ovd's user avatar
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1 vote
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22 views

Memory-optimal base64 encoding Java library

Is there any trust-worthy library in Java that encodes a byte array to base64 without using intermediate structures, where you provide the output byte array as well as an offset for that output array ...
Bruno's user avatar
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Code Validator for different programming languages

Does anybody know any validators for different programming languages? I'm trying to implement it to my web app and I'll need a code validator. I saw fbinfer for Java, C and C++ (but it's not supported ...
Gryva's user avatar
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1 vote
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Java testing framework for testing new shim gives same results as old api?

I'm working to take an old no longer supported, but still heavily used throughout my company, library and create a replacement shim that passes all the real work down to a different library that is ...
dsollen's user avatar
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Java JSON/XML parser with efficient node access

I wonder if there might be a DOM-like JSON/XML parser + generator library which allows one to search the in-memory nodes (after parsing / before unparsing) by name in an efficient way (better than ...
Adrián's user avatar
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1 vote
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Java library for extracting and validating digital signatures in any file format

I am writing a Java program which will need to validate CMS digital signatures on files in a variety of different formats: ZIP docx/xlsx PDF Any file with a detached signature I'd like a universal ...
David North's user avatar
1 vote
0 answers
45 views

Is there a Linux and Mac equivalent of Launch4j that's free?

I think this software is great but I can't seem to find anything that does the same thing for Mac or Linux builds. Here's the software if you aren't familiar with it. Launch4j The reason why I want to ...
SpyderCoder's user avatar
1 vote
0 answers
45 views

I need to navigate DB state using JPA definitions for viewing data

Requirement Summary View DB data (row content) and tree-navigate along references (foreign keys) while presenting their corresponding JPA (Java Persistence API) definitions / metadata Use Cases As a ...
bmel's user avatar
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2 votes
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199 views

Running Java computations on the GPU on an m1 Mac?

I develop and run scientific computations in java on my MacBook Pro. I'd like to start learning gpu programming in java so I can optimize some of my pipelines. Ideally I can start with a high-level ...
Matt Groth's user avatar
1 vote
1 answer
60 views

What framework is best for a 2D top-down shooter in Java?

I'm creating a roguelike shooter in Java where the bullets are projectiles (not hitscan), the camera moves with player movement, so that the player character is always in the middle, and where I'm ...
devor's user avatar
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1 vote
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Can any libraries extract picture(s), if any, from an image of a page of text

I have jpeg images of pages of text, some of which have pictures within their layout. I don't care about OCR of the text, but I would like to be able to extract the pictures from the page image for ...
headbanger's user avatar

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