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Questions tagged [java]

libraries for Java and Java development tools

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27 views

Java development environment

I am totally new to this whole programming stuff. So I started with simple websites by using Atom. But now I want to do something with Java for a Raspberry Pi project. I already tried it in Atom but ...
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best software to store and retrieve information on books for both web and desktop/mobile apps

I have been looking for a while but can't seem to find something that fits my needs. A basic rundown of what I am looking for is a software/api that will allow me to store and retrieve information ...
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11 views

Android Library To Facilitate A Layout Builder App?

I was wondering if there was some sort of library (Java) that could help me make my own layout builder app. For example, take a look at Eventbrite: This is the direction where I want to go and would ...
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14 views

Best software to store secrets in git

I'm trying to store my application secrets as part of my java application and push it git repository so that all out team can access those secrets with single master password. Do you suggest any ...
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3 views

How to convert jar file to exe file including all the dependency jar files?

I have a .jar file that contains my java code on PDF printing. The java code is using json & other pdf related functions. I want to create a .exe file for this project. This project is running on ...
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3 views

mock external apis framework

We have spring application (Java 8) with several external APIs (REST) from different providers. We are integrating new providers and want to test most/all cases of provider responses Is their a good ...
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5 views

Conception of Java application to handle a mail reception and processing

What is the best idea of java application ( JAVA Apps ideally but I'm open to other suggestion too ) that will perform the below actions : 1- Receiving emails to an email address configured ( App's ...
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3 views

Looking for a Tool which helps to View PDF files and Handle file operations in Java and Angular?

Looking for a Tool which helps to View PDF files and Handle file operations such as Viewing , Preventing Download and Print Feature, which also supports Java And Angular? Any suggestions are kindly ...
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25 views

IP Spoofing in Java

We have a use-case for testing where we have to make Java request to a service with different IPs and with custom HTTP header in request. Can someone suggest any application/tool by which we can do ...
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0answers
15 views

Theorem prover for C#

I have already read some older articles here in the forum on theorem proofers, but the articles are quite old, so I would like to open a new question for here. So I have the following case: we have a ...
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136 views

Solve small quadratic programming problem with inequality constraints in Java or C/C++

I need to solve a quadratic programming problem. The problem is small, 4 variables and 8 constraints, and has inequality constraints but not equality constraints. I am looking for a library in Java or ...
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Java Mission Control vs Java Flight Recorder

Jvisualvm and Java Mission Control both measure certain aspects of running Java code, come with the JDK, and can be found in $JAVA_HOME/bin. This Oracle web page has some good overview information. ...
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403 views

Java ACH Payment File Libraries

I am working on a project (in Java) that requires NACHA/ACH files generation. I would assume something used so widely would have lots of libraries out there but surprisingly I cannot find any. Does ...
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13 views

What technologies should I use to deploy a web-site today (asking for best-practice)?

I am a seasoned developer and used to code Spring with Java Hibernate instantiating SQL database (MySQL, MSQLServer, postgres). I am getting ready to start a new web development effort. Mostly a team ...
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4 views

Software/Script Elaborating data after received from a telnet connection

Looking a solution for generating data from a telnet connection. I need to check weight in every operation from my balance. But the problem is that once you connected with the balance over port:23, it ...
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1answer
2k views

Tools for generating JPA entity classes from database tables

I have been using Hibernate-Tools and JPA tools in Eclipse to generate JPA entity classes from an existing database. The problem is that this process is really complex to set up and has many small "...
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4 views

Which framework is good for Rule based application?

I have java web application which has lots of rule checking for each transaction or response. Most of rule checking includes database and code.Rule check and dynamic based on Database parameters. I ...
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3 views

A tool or system for automate-code version and comment synchronization management

Our company's underlying code base is constantly being updated and improved, and annotations are constantly being updated. Now there is a problem that we have a lot of versions of the code and ...
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6 views

Programm/Tool to build jsp pages

someone of you know some programm to build jsp pages? I mean something similar to SceneBuilder for JavaFX, in order to design the jsp page in a graphic way and then get the code from that design.
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1answer
33 views

K-means library for android

I'm looking for android library to cluster location points in groups. I want to do it locally on android without internet and group in a way where distance between mean and every point in cluster aren'...
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8 views

what can i use as a free software technology to connect my chatbot with messenger

I am developing a chatbot using spring boot (I am following this tutorial:https://github.com/rampatra/jbot) and I try to link with messenger without hosting on a server (I'm looking for a free ...
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0answers
8 views

read serial port in java

. > i am looking for a library to read a serial signal with 1mhz baudrate in java that no have specific protocol so i decided read this signal bit to bit.how i do that and what library is ...
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13 views

Extract fields of a JSON using a schema subset

I'm working on a JVM application which consumes a JSON message with 100 fields and passes a subset of the fields (say 10) of the JSON message to a Kafka topic. I'm looking for recommendations for any ...
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0answers
16 views

automatic creation of the program schema

Are there any ways to automatically create a program schema (specifically interested in Java/IDEA)? I mean schema wich shows what classes and methods exist, what from where is called, what parameters ...
1
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1answer
242 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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14 views

How to create timer countdown from jsp using javascript and java

i would like to create countdown using javascript and countdown the variables that are java. minutes = <%=(userTimeBlocked/60)%>
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1answer
1k views

Java RADIUS Client Libraries

I'm interested in what Java RADIUS client libraries are available and actively supported. This question is similar to What (good) Java RADIUS server libraries are out there?; however, I'm interested ...
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1answer
689 views

Javascript library for flowcharting

I have a requirement for modelling flowchart like (workflows) diagrams in the Web application. Request suggestions for an open-source javascript library for the same. Features I am looking include ...
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1answer
32 views

Backward-compatible alternative to Kotlin and Scala?

I'm seeking a programming language (i.e.: compiler and IDE software package) that introduces modern convenience concepts like implicit conversions, assignment/call fungibility, mix-ins, extension ...
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3 views

Migrate AngularJS+SpringREST app. to Java8

We have 20application based on Angular(1)JS, Spring3.x, SpringBoot and OracleForms. Currently they are hosted on-premise datacentre with Java7 and Oracle11G. Infra recommendation is to put on ...
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0answers
4 views

Geotools or Gdal?

I am fetching large GeoTIFF images (450 MB) from AWS S3 bucket in Java REST API. Can anyone suggest me which one is a good Java library to crop those images on the basis of the co-ordinates provided? ...
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0answers
6 views

GUI Framework for research

I'm working with a Java Simulator and JupyterLab (Python scripts) and currently, I'm launching the experiments directly from Eclipse or the command line, and after I generate plots, tables, etc. In ...
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21 views

Migrating from IBM ODM to Drools

We have some large scale rules projects running on IBM ODM. For some reason we want to migrate our rules to Apache Drools. Since we have large projects with some 5000 rules I am looking for a tool ...
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5 views

Elasticsearch Remove duplicate shop data & user data

There are store data in my index. When a user searches for a product based on a keyword, a store displays a lot of products. I want to realize that only one product is displayed in one store. I am ...
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8 views

Best Automation framework to use for c# code

I have been working in c# code. Currently I am using nunit framework to write automation tests and Octopus deploy for running them. I would like to know if I can use any other better framework like ...
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5 views

Program that makes extensive use of Java features?

I'm looking for a relatively simple program that uses/tests as many Java features as possible (if that's not a contradiction in terms!). By that I mean uses the features of the JVM itself rather than ...
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5 views

Best Payment Gateway in Moldova to Implement in Java Application

I am developing a spring boot application , I need to configure a payment gateway in the application,but the problem is that my client is from Moldova and their in Moldova not many people use PayPal ...
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12 views

Automatic reconnection to Elasticsearch after connection lost from Java High Level REST Client

I'm trying to fix the problem of auto-reconnecting to Elasticsearch after my application (Springboot) temporarily lost the connection. I am using the Java High Level REST Client. How can i tune it?
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11 views

Power Cable Management

What software should I program this in? I have no idea where to go. Java, C++, html ???? This is just a side project to help wire management... I have an IT closet with (25) plugs coming from (4) ...
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0answers
6 views

Peer to Peer library wirh node discovery and routing capabilities for android

I am looking for a peer to peer library that will work in a LAN. I would like to use the application for communication within a LAN(voip and messages). I have been reading about kademlia and ...
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0answers
17 views

How to connect camera with my application so I can record videos using Java?

I can't find an example on how to connect Sony's camera with my application. I want my application to be able to start recording, stop and assing a name to video after recording. I have connected ...
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0answers
8 views

Java Framework for in-memory task graph execution

There are some (let's say 20) concrete implementations of the FunctionalInterface Function< Input, Output> addressing isolated aspects of my business logic. A combination of some of these concrete ...
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5 views

Is there a tool to convert proto Builder to java Constructor?

question: I want to convert proto deserialized Builder into java Constructor, which needs to deal with the wrappers class. When it encounters no assignment, it changes to NULL. eg: proto ...
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0answers
8 views

Local in-memory off heap JVM key-value store

I am looking for a JVM library implementing ConcurrentHashMap to store large map in local memory. Expected to have 20,000,000 items in this map with overall size of 2-3 Gb. No need to distribute data ...
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0answers
16 views

Is there any API to generate a JSON schema programmatically in Java?

More info: I am converting XML data using the eclipse org.eclipse.uml2 (and emf) packages to generate a JSON schema, and looking for a similar Java API that provides JSON schema semantics (like ...
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0answers
7 views

How to bundle a Maven project to a .pkg installer?

I have a JavaFX 12 project which I would like to bundle into a .pkg installer. Is there an easy way to do this, or is there any third party software that can help me with this?
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6 views

Eclipse: Auto-generate hashcode() and equals() on save

I would like the java hashcode() and equals() functions to be added/updated when the class is saved, or even better; when fields are added/removed/changed. It seems Lombok can do this but I am ...
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0answers
15 views

Recomended Dynamic Time Warping Library for Java, (Wav file audio comparison)

I am looking for a Dynamic Time Warping Library in Java to be used with eclispe. This will be used to compare 2 wav files by extracting their MFCC (Mel-frequency cepstrum). I will need to find the ...
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2answers
65 views

Java library to create PDF file

I am looking for a free library to create and export PDF files. I will receive StringBuilder like that: value;timestamp 8627;1514674800000; 8627;1514761200000; and I need to generate and export to ...
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7answers
14k views

Free or nearly free PDF library for Java

The title1 says it (nearly) all. To be more specific, I require PDF generation with basic formatting (tables and images) usability in closed source commercial project being free (as in beer) or ...