Open Source Java Libraries
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Java Libraries
View 69 business solutionsBrowse free open source Java Libraries and projects below. Use the toggles on the left to filter open source Java Libraries by OS, license, language, programming language, and project status.
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Passwordless Authentication and Passwordless SecurityIt’s no secret — passwords can be a real headache, both for the people who use them and the people who manage them. Over time, we’ve created hundreds of passwords, it’s easy to lose track of them and they’re easily compromised. Fortunately, passwordless authentication is becoming a feasible reality for many businesses. Duo can help you get there.
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Build Securely on Azure with Proven FrameworksMoving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
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NestProfessor Programmer Edition
Nesting SDK, Library
This is a SDK which can nest/layout the part/geometry/polygon on the material or sheet intelligently, you can get the best utilization of the materials, this SDK also support read/write DXF/DWG files and part-in-part nesting. New nesting lagorithm is implenmented, more good to support true shape part or material. -
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JavaGimmicks
Utility classes, APIs and tools for Java
A set of helper and utility classes, APIs and tools for the Java Programming Language. For more details - pleas visit the project homepage. -
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AlgART Java Libraries
Open source library for processing arrays and matrices
AlgART Java libraries for processing arrays and matrices are open-source product, distributed under MIT license. So, anyone can use them for free without any restrictions. Main features: 63-bit addressing of array elements (64-bit long int indexes), memory model concept (allowing storing data in different schemes from RAM to mapped disk files), wide usage of lazy evaluations, built-in multithreading optimization for multi-core processors, wide set of image processing algorithms over matrices, etc. - please see at the site. Almost all classes and methods are thoroughly documented via JavaDoc (you may read full JavaDoc at the site). -
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The goal: to provide implementations of as many algorithms (sorting, searching, ...) and data structures (lists, trees, ...) as possible, accompanied by discussion of big O run time and memory limits and references to sources of further study.
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Build Securely on AWS with Proven FrameworksMoving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
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EZvolve Foundation Classes
Data types and utility classes for use with evolutionary algorithms.
EZvolve Foundation Classes is a set of data types and utility classes for use with evolutionary algorithms. Currently implemented support for bit string encoding, populations, fitnesses, fitness functions, probabilities, and probability vectors. -
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Enumerations
This project is no longer maintained.
This project is no longer maintained. Instead use my Java util lib: http://sourceforge.net/projects/util-lib/ -
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Genetic Algorithms Library (in Java)
An API for Java developers who need Genetic Algorithms
This API is intended to help developers use genetic algorithms in their own java applications. GeneticLibrary.zip contains the netbeans project of the API itself. GeneticTrial.zip contains another netbeans project which is an example explaining how to use the API. docs.zip is the documentation of the API. Please take a look there, it is really helpful. I have only two request from who will use this API; USE, UPDATE AND MODIFY IT FREELY JUST NOTE THE ORIGINAL AUTHOR -
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This is a series of *.java Classes for making programming tasks simpler, much like Apache Commons. Included in this src package is an Advanced Randomizer, TStringList Clone From Delphi, an Algorithem Class, and Method MultiTask Better than Runnables.
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The JSparse Matrix Package, developed by Philipp Geigenmüller during an internship at the prudsys AG in Chemnitz, Germany, is an extension of the well-known Java Matrix Package (JAMA) and allows the use of sparse matrices and related algorithms.
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Our Free Plans just got better! | Auth0 by OktaYou asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your secuirty. Auth0 now, thank yourself later.
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JUtilClasses
Java programmer's aid in useful methods and classes
Util-Classes is a collection of Java classes for programming support in service for building applications. It covers a wide range of topics from simple small routines over Collection classes to larger utilities addressing IO-management, GUI topics and data safety. -
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Jafaran
Fast and more random implementations of java.util.Random.
Jafaran (Java Fast Random) provides fast, and for some more random, implementations of java.util.Random, with additional nextXXX() methods, and methods to retrieve and restore state. The names of implementations contain "Conc" (for concurrent) if they are thread-safe and non-blocking, or "Seq" (for sequential) if they are not thread-safe. Also provides an implementation of Ziggurat algorithm (based on J. A. Doornik paper, 2005), used by nextGaussian() methods of the provided implementations. Requires Java 5 or later. Also available on github since 2015/12/13: https://github.com/jeffhain/jafaran Principal classes: - Implementations using Mersenne-Twister algorithm (good pseudo-randomness): MTSyncRNG MTSeqRNG - Implementations using Marsaglia Xor-Shift (fast): MXSIntSeqRNG (32 bits) MXSLongSeqRNG (64 bits) (nextLong() faster, larger period) - Ziggurat: Random-based implementation of Ziggurat algorithm. -
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Fastest string utility is java library (JAR ) for string operation . This library is very easy to use, very fast and very efficient in string operations such as split, toUpperCase, toLowerCase, replace, delete, regular expression and others.
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Java Random Numbers - Random.Org API
Offers Random numbers API for your programs written in Java.
Very lightweight and easy to use library that allows you to generate truly random numbers by means of Random.Org service. Library offers optimized algorithms for obtaining single random number or more random numbers at once, sequences of numbers, random strings etc. Also allows you to check quota. It provides algorithm to generate unspecified number of random numbers of certain total value. This algorithm still keeps server load low by sending as large requests as possible, yet all integers are truly random. ******************************************* Current version 1.5 is considered as STABLE version. All methods and whole class are documented via Javadoc. Credit goes to http://www.random.org -
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Levenshtein distance Java Libarary
Java library implementing Levensh distnce
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OverlappingTreesPlainMap
The utility for quickest manipulations with difficult data.
This is Java library for working with overlapping trees both as with plain memory and as with hierarchical structure, with quick access to any levels and branches of tree (<page><...><section><line><word>tooLongWordForCurrentLi</line></page><page><line>neAndSectionTwoPages</word></line></section><...></page> (incorrect in classic XML)). There supported the cross-references (from="@leftPanel#template" target="$template"); cursors;copying and removing of parts; functionality to index and search data; convenient factory of dynamic generation of values and parts of data; simple variables and any objects as values and as unnamed data for manipulating. Every object of this container is an child of any numbers of trees and has dynamic address. The utility is not demanding to resources, requires no extraneous libraries and can be deployed in a small memory. It can run on mobile devices. Do not use linear algorithms, the speed is only slightly dependent on the size of data. -
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PWSLIB3
Password Safe encrypted databases, Java library
Java module to create, read and write Password Safe V3 encrypted databases. The package is a mature offspring from project JPasswords and can be used with Java 1.8. There is an API document available. -
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Programming Accessory Kit
PAK is a collection of library code to handle the overhead of coding
PAK is a collection of library code to handle the overhead of coding things like read-write locks, reflective multithreaded programming and simple file io. This is a java library collection, please see my API below... -
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Java generic Iterator implementation to generate permutations and combinations. Uses the algorithm described here http://en.wikipedia.org/wiki/Steinhaus%E2%80%93Johnson%E2%80%93Trotter_algorithm#Even.27s_speedup and the clear description of that algorithm here: http://www.cut-the-knot.org/Curriculum/Combinatorics/JohnsonTrotter.shtml
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Geom4J is a computational geometry library for Java. It contains implementation of the most important computational geometry data structures and algorithms coded in pure Java, designed for ease of use and optimized for performance.
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gundercrypt [MOVED]
A CLI text encrypting/ciphering program and library for java
** MOVED: to github.com/gundermanc/gundercrypt A CLI text ciphering program and library written in java that makes use of pseudo random numbers and a password (provided by the user) to generate encrypted text by selectively shifting each subsequent letter by a pseudo-random index, encoding it as a letter stored in a hidden position within the String, and then re shifting the encrypted String again by numeric values deduced from a password to provide a dual layer of security. Easily can be imported into any java project or run via shell commands. -
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kovacs.util (Java numerical classes)
!!! moved to jnum subproject under crush-software !!!
This project has be renamed to jnum and moved under the crush-software project. No further SVN commits here... -
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op4j is a developer happiness tool. Its aim is to reduce the amount of similar lines of code needed to do every day tasks in our code by providing an operator chaining tool to perform easy iterations on lists, OGNL evaluation, data type conversion...
