Questions tagged [java]

Java development tools and libraries for Java.

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Is there a 2D game engine for an RPG game where I can program in Java?

I'm very new to java and for my high school course assignment I need to make an RPG game with a story. The game has to have sound effects, combat system, generally like how Undertale is. The biggest ...
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Java library supporting SQLite virtual tables

SQLite has feature named "Virtual Tables", which "allows an application to publish interfaces that are accessible from SQL statements as if they were tables". https://www.sqlite.org/vtab.html For ...
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Java PNG creation library usable both stand-alone and on Android?

I'm looking for a Java library that can output PNG files. In my image-creation routine, I know the image size and the color of each pixel. I want my image-creation routine to be usable in two ways: ...
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Lib or tool to record and replay http invocations during tests

Can anyone advice me on a strategy/lib/tool to quickly create functional tests for a server that exposes an HTTP api against a thick client (think desktop app)? My idea is to record http invocations ...
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I am searching a JavaHelp still supported alternative

I developed a Java Swing application, and used JavaHelp to generate the help for this one. But JavaHelp is too old and not supported now, I didn't find any alternative (I saw OracleHelp for Java but ...
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Free Text-to-Speech library with viseme event for Java desktop application

I'm looking for free Text-to-Speech library, which sounds naturally and supports viseme event. To use it for Java desktop application I found http://mary.dfki.de/ but it does not supports viseme ...
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181 views

Java Spring based open source CRM

I am looking for well designed open source Java/Spring framework based CRM. The CRM should not be just a toy project on GitHub but even that I could not find. It should support around a dozen ...
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Java library for error-correction

I am looking for a simple error-correction library in Java. It needs to be able to correct some errors in variable-length messages. However, the error-correcting codes together with the message must ...
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341 views

Java client for time server, such as Network Time Protocol (NTP)

Looking for a time-server client library for Java. I suppose means only Network Time Protocol (NTP). My goal is simply to fetch the current date-time from a time server. I will compare to verify the ...
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58 views

Is there a Java/ImageIO JBIG2 image writer?

I need to write images in the JBIG2 image format using Java/ImageIO. I found the levigo/jbig2-imageio library providing a JBIG2 reader allowing to read JBIG2 images using ImageIO, but I was unable to ...
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91 views

Extract XML file from a PDF/A

Do some java APIs exist that allow me to extract an XML file from a PDF/A in a Java? Citing Wikipedia: PDF/A-3 allows embedding of any file format such as XML, CAD and others into PDF/A documents.
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Programmatic soundtrack composing

I am looking for a library, preferably written in C/C++, but Java is also fine, where I can programmatically compose a sound track from many different sound files loaded in runtime with ability to ...
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134 views

Java High Level Game Library Recommendation - Maintained Alternatives to Slick2D?

I am developing games in Java. I prefer extendable and high-level game frameworks–but nonetheless, I have tried many low-level bindings too. So these are the ones I have used/researched about. Some ...
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Need Dynamic S Box Library in Java

I need a Java source code library that can dynamically generate the SBox (substitution box) for AES based on the AES256 key provided.
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305 views

Is there any way to make an HTTP/2 request with Java 8, without installing ALPN?

we're using Java 8, and we need to make HTTP/2 requests. This software is distributed to clients to run on desktop machines, and modifying the boot classpath to include ALPN is not an option. Is ...
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53 views

Open source tool to do OCR

I would like to parse the text content (OCR) from these image file types and index them and make them available for my lucene search engine for search. .ai .bmp .gif .jpeg .jpg .png .psd .ttf Can ...
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15 views

InputStream that spools to disk asynchronously

I am wondering if anyone knows of a Java library that can take an input stream and spool it to disk, while allowing it to be read. I am dealing with an issue where I need to stream very large files, ...
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Replacement for jxDBCon?

jxDBCon is JDBC driver framework which implements generic parts of a JDBC driver. However it is unmaintained and implements only things in older, not current, JDBC. Are there any other libraries that ...
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15 views

AR development Library in Android

I'm new to AR (I have experience in VR though), and want to do some simple AR development (detect traffic signs printed on papers). Are there any simple-to-use library or SDK for AR development? I'm ...
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39 views

Travelling Salesman: Java library

I have a list of 1000 buildings of a city, and want to find a short route that covers them all. Is there an implementation of this in Java? Requirements: Open source Easy to use: just call a method ...
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Spherical Travelling Salesman: Java library

I have a list of 1000 cities around the globe, and want to find a short route that covers them all. Is there an implementation of this in Java? Requirements: Open source Easy to use: just call a ...
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458 views

Java graph library with visualization on console

A lot of Java graph libraries, like JGraphT and Graphana, have visualization features for Java AWT or Swing. I'm looking of a graph library which allows to specify vertices and directed edges and then ...
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38 views

Installation package generator for Postgres, Tomcat, Java (jre) and a war file

My aim is to build a silent installer to install the following components on a user machine. Postgres including PgAdmin, Apache Tomcat 7 Java (JRE) 7.0 And a war file I am targeting Windows only, ...
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234 views

Appointment Management Library for Java

I need to implement an appointment management system for one module of my project. While it is a hard task to implement from scratch, I wonder if there is any open source library which I can add my ...
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39 views

Open Source bug tracking software, implemented in Java

I'm looking for the best open source bug tracking software which has lots of features developed in java I don't see much in top list - http://www.thegeekstuff.com/2010/08/bug-tracking-system Found ...
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46 views

IntelliJ plugin or other software to generate Java code maps

I'm looking for a program or a plugin to generate maps from Java source. Something that can be used either to improve my thinking process or use for documentation and presentation. Is there such a ...
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25 views

Tool for generating test case document from javadoc

I am looking for a tool in Java/maven that can generate test case document from javadoc and merge the test result into it. I am indeed to put the javadoc in front of all integration tests and I want ...
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52 views

Looking for a tool to static code analyse

I'm looking for a tool which must meet certain requirements. I do some research and at the moment JArchitect is closest to expectations. This tool must: Work with Java (and maybe C++) Analyse code ...
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1answer
107 views

What Java ORM can give me both dynamic SQL and control of the ResultSet at the same time?

Requirements for an ORM I'm looking for: Dynamic SQL with: 1.1. SQL injection prevention 1.2. named parameters 1.3. capability to set where clause conditions conditionally 1.4. capability to ...
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What software library can I use to tokenize attached words?

I have a set of strings like below: maninthemiddle saltnpepper redcarsonly gatonegro baguettebiencuite ... I'd like to extract words from each strings. The output would look like: man in the middle ...
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Maven archetype that creates a webapp with WAR generation, eclipse web project, JUnit, command-line Jetty

I often need to create Java webapps. I usually run the maven-archetype-webapp archetype, but it does not provide enough, so I always have to manually add many things, such as jetty:run. I want to ...
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80 views

Dynamic tool to test Java code for deadlocks and race conditions

I am searching for a tool to allow me to test a Java application and find deadlocks and races in it. Research I understand there are two main approaches, static or dynamic. That is, static code ...
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Software Evaluation and Purchase Sysetm

I am writing a program in Java that I would like to sell and also release a 30-day evaluation copy of. I have access to a website to optionally host some portions of licensing but would prefer to not ...
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32 views

Tool for merging Java classes and interfaces

I'm a Java software developer and often inherit existing projects. These projects follow the convention that each class has an interface even if there is only one implementation. I would like to ...
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Switching traffic by API version

I am working on a REST API, which is provided by a Java Spring Boot application. My idea is to have some kind of reverse proxy like Apache Server, that would switch the traffic according to API ...
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53 views

Java Performance Bottleneck Profiling Tools

I am looking for a performance profiling tool that can tell me the performance bottlenecks in my Java application and can give me a detailed overview of the most expensive method calls. I have the ...
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31 views

Tool to daemonize Java program

I search a free program that is able to daemonize Java programs, mainly for Windows where it needs to run them as services. Support for Linux would be ok, but is not a prerequisite. The program needs ...
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15 views

Powerful and easy-to-setup mock framework for Java

I have implemented a Java class that performs calls to an interface that I will call "TheInterface". To unit test my program, I need a mock implementation of TheInterface that I can make my class ...
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85 views

Java backend app / server that receives files uploaded in Angular JS or Javascript (e.g. ng-file-upload or angular-file-upload)?

I have written a backend Java app that runs fine, uses Tomcat server (though any server would work) and also has a Jersey REST API should I need it. I also have a nice Angular JS, HTML + CSS web UI ...
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57 views

Java editor for Chrome OS

I'm a student in Sweden studying programming and recently we got Chromebooks to make it easier to study and write essays. I realized soon that I wasn't able to install any software to my Chromebook so ...
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51 views

Type of Database for Live Streaming

I begin with a project about videostreaming with Android, specifically Live Streaming (not video on demand) The device Android will transmit video and audio, too I will have other software in desktop ...
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Is there any kind of interface to process images by using java and gimp?

I am looking for a GIMP-plugin or a Java-API to write complex filter that behaves like this: Java program, that loads a .xcf-file, detects and applies the structure of drawables, layer groups, etc. ...
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124 views

Java code editor & compiler on iOS iPad

I'm looking for a code editor (compatible with iOS on an iPad) that has the following features: Java code editor Java code compiler Java code is shown neatly (syntax highlighting would be an added ...
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1answer
313 views

Excel to CSV Java library

I am looking for a Java library (preferably in Maven Central) that can read XLS and XLSX and save the sheet to CSV. I am looking for something higher level than poi and jxl as neither of these have ...
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Efficient data store for storing and retrieving Map<Integer,Integer> data structures, and incrementing their values

I'm looking for a technology very similar in function to count-db. Use case You want to use count-db if you need to write and read billions of counts very efficiëntly from a Java program. ...
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Java library for text and commenting mark up

I'm interested in building a text management software and I'm looking for ideas on the framework to use. I'm familiar with Java, and was looking at Swing and JavaFX, but I haven't seen the features I ...
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327 views

Fast matrix operation library for Android App

I am working on an android app which needs to do some quick matrix operations (inverse transpose matrix multiplications etc) As I understand there are already many fast libraries for doing such ...
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91 views

Is there a java caching library to preload the results of slow running functions?

Say I have some function: public Foo slowGetFoo(String id){ //This process may take a long time } In order improve overall application responsiveness, I'd like to preload the results of this ...
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embedded database for mysql workbench

I am looking for an embedded database but all of the administration tools out there are really shocking quality. I do like mysql workbench as an administration tool though so I was hoping that there ...
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536 views

Programmatically build SQL queries in Java

We have a query that needs to be built dynamically when the user chooses search params in our GUI. I understand how to do this by hand in SQL by appending strings. While this does work there are a ...

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