Search Results for "collections"
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Showing 31 open source projects for "collections"
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Eclipse Collections
Eclipse Collections is a collections framework for Java
Eclipse Collections is the best Java collections framework ever that brings happiness to your Java development. Integrate it to your codebase today with your favorite build tools! Maximize the power of Java 8 Lambda expressions and method references with rich APIs directly available on your collections. Many container types include immutable collections, primitive collections, bimaps, multimaps and bags. -
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Vavr
Object-functional library that runs with Java 8+
...It helps to reduce the amount of code and to increase the robustness. A first step towards functional programming is to start thinking in immutable values. Vavr provides immutable collections and the necessary functions and control structures to operate on these values. The results are beautiful and just work. The Vavr binaries can be found on Maven Central. Beside with Gradle and Maven they work also standalone. The documentation gives an overview and covers the concepts in depth. It is the best way to get started with Vavr. ... -
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toBeBetterJavaer
An easy-to-understand and humorous Java study guide
...It combines original tutorials, learning roadmaps, reference material, and job-interview preparation in one organized repository. Core lessons cover syntax, object-oriented programming, collections, exceptions, I/O, networking, NIO, and modern Java features. Dedicated material explores multithreading, concurrency utilities, the Java Memory Model, locks, thread pools, and concurrent collections. JVM coverage includes bytecode, class loading, runtime memory, garbage collection, JIT compilation, and performance diagnosis. It also expands into Spring, databases, Redis, distributed systems, Linux, and other enterprise-development subjects. -
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Booklore
Digital library with smart shelves
...Booklore supports multi-user access with granular permission controls, making it suitable for families, book clubs, or shared collections, and its built-in reader can display PDFs, EPUBs, and comic formats directly in a browser. -
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JavaCore
JavaCore is a summary of experience with Java core technologies
...Advanced material covers regular expressions, encoding, encryption, internationalization, Java 8 features, and the service provider interface. Separate sections explain collections, streams, traditional I/O, NIO, serialization, sockets, and networking. Its concurrency coverage includes threads, locks, atomics, thread pools, concurrent containers, synchronization, and the Java Memory Model. JVM chapters address memory, garbage collection, bytecode, class loading, diagnostics, monitoring, and performance tuning. -
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Java Basics
Large educational repository for learning and reviewing modern Java
Java Basics is a large educational repository for learning and reviewing modern Java, currently presented around Java 25. It combines conceptual notes, code examples, programming exercises, interview questions, and multiple-choice material. Core topics include collections, strings, object-oriented programming, multithreading, and general Java programming. Separate resources cover JDBC, JSP, Servlets, Hibernate, and common design patterns. The repository also contains dedicated Java program collections for hands-on practice and problem solving. Its broad structure makes it useful for beginners, interview preparation, and developers refreshing specific Java concepts. ... -
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30 Seconds of Java
Collection of reusable tested Java 21 compatible code snippets
30 Seconds of Java is a curated collection of short, focused Java code snippets intended to teach small concepts quickly, similar to the popular “30 seconds of code” format in other languages. Each snippet is designed to be read and understood in under a minute, showing a single idea such as working with streams, handling optionals, manipulating collections, or doing common utility tasks. The repo targets both beginners who want bite-sized learning and experienced developers who just need a ready-made idiom without digging through docs. Because the snippets are standalone, you can copy them directly into your project or adapt them with minimal changes. The collection is organized and documented so you can browse by category and skill level. ... -
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Java Core Learning Example
Examples of learning and accumulating Java core technologies
Java Core Learning Example is an educational Java repository focused on core language concepts and practical examples for beginners and developers reviewing fundamentals. It covers syntax, object-oriented programming, collections, I/O, NIO, reflection, runtime type information, threading, networking, and initialization behavior. Java 8 material includes lambda expressions and the Stream API. Each topic is paired with runnable code and corresponding tests where available. The collection also demonstrates performance comparisons between common collection types and I/O approaches. ... -
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exchange-core java
Ultra-fast matching engine written in Java based on LMAX Disruptor
Exchange-core is an open source market exchange core based on LMAX Disruptor, Eclipse Collections (ex. Goldman Sachs GS Collections), Real Logic Agrona, OpenHFT Chronicle-Wire, LZ4 Java, and Adaptive Radix Trees. HFT optimized. Priority is a limit-order-move operation mean latency (currently ~0.5µs). Cancel operation takes ~0.7µs, placing new order ~1.0µs. Pipelined multi-core processing (based on LMAX Disruptor): each CPU core is responsible for certain processing stage, user accounts shard, or symbol order books shard. -
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10
threadandjuc
High performance three-high-import import system
...It is designed to help developers understand how Java concurrent programming works through examples, explanations, and practical project-style demonstrations. The project covers topics such as threads, locks, synchronization, thread pools, concurrent collections, and high-performance data handling. It is especially useful for Java developers preparing for interviews or improving their understanding of production-level concurrency patterns. Some material also explores large-scale import and high-throughput reporting scenarios, connecting theory to real performance problems. Its main value is giving learners a structured way to study Java concurrency beyond isolated code snippets. -
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Happy Java Library
Multilock, Collections, Controllers, Delegates, Generators, Streams
...Because of method called as API-Evolution the Happy Java Library is fully downward compatible. The library contains following functionality: MultiLock, Parallel loops, Collections, Controllers, Generators, Delegates, Streams. -
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Util
Java util library with many goodies that will blow Your mind.
My Java util library. It contains many variations of Enumerations, Iterators, Collections, Sets and Maps (e.g. Map2D, Map3D, InvertibleMap, SetMap). It also contains very nice Model-View-Adapter framework. Necessarily see the AnotherClass interface. It will blow your mind. Furthermore it contains interfaces like: Hierarchical, Factory, Converter, Overridable, Persistable, Bindable, Sequential and many other. -
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java-commons
Common classes for Java developers needed by most projects.
The library currently contains these classes: Log - simplified logging. This class depends on java.util.logging class. SafeCollections - Multithread-safe collections include SafeMap, SafeQueue and SafeSet Settings - a class that manages single or multiple settings files. -
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PlaceHolderView
This library provides advance views for lists and stacks
PlaceHolderView is an Android library for building advanced lists, expandable collections, infinite feeds, and swipeable card stacks. Some components extend RecyclerView, while others use independent implementations tailored to gesture-driven interfaces. Its annotation-based API reduces adapter and binding boilerplate by generating binding classes during compilation. PlaceHolderView offers a standard list container, an infinite-scrolling variant, and a parent-child expandable view. ... -
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Args
A java configuration file and command line parser
Powerful rule-based command line parser and cofiguration reader. Options can be created using annotations or manually using a powerful API. Options are grouped into hierarchical namespace, allowing sophisticated inclusion, exclusion and grouping based on rules. Supports multiple dialects and automatic document creator such as typical usage and UNIX manpages. POSSIX, GNU, MSDOS command line parser dialects. XML, INI, PROPERTIES configuration file types. Database and general persistance or... -
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rubycollect4j
Ruby Collections for Java
The rubycollect4j implements all methods refer to Ruby Array, Hash and Enumerable. For further info, please visit http://ruby-doc.org website. For more documentation, please read JavaDoc. With Java 8: // Sort the characters by its frequency based on the word 'Mississippi' case-insensitively RubyArray<String> word = ra("Mississippi".split("(?!^)")); String result = word.map((c) -> { return c.toLowerCase(); }).sortBy((c) -> { return... -
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Project development was moved to GitHub: https://github.com/dom4j/dom4j dom4j is a simple and flexible open source library for working with XML, XPath and XSLT on the Java platform using the Java Collections Framework with full integration with DOM, SAX and JAXP.
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Immutable Collections for Java
Immutable/Persistent Collections Library
...All collections provide immutable Cursor as well as standard Iterator classes for looping through all elements. A utility class provides functional style algorithmic processing of Cursors including foldLeft, foldRight, collect, select, and reject. The 2-3 tree and integer trie classes are optimized for performance and can be used alongside java.util Collections when immutability is needed for safe data sharing. -
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Conserve is no longer hosted at SourceForge, we have moved to GitHub: https://github.com/ConserveORM/main
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Numenius Borealis
Visitor and filtering decoration of java collections.
The purpose of this project is to add an more OO aproach to collections handling through Visitor pattern. -
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corn-converter
Bidirectional java type converters (JSON, XML, ...)
Corn Converter module contains bidirectional java type converters to different target types like JSON and XML. It's simple, flexible and powerful enough satisfy serialization, de-serialization requirements including complex bean types and collections. -
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A simple generic library for Java. This library includes a series of utility classes (including collections) and a few simple APIs for synchronization, messaging, searching etc. The accent of this project is on its simplicity of use and universality. Migrated to: https://github.com/losvald/sglj
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PROJECT MOVED: https://github.com/workplacesystems/utilsj Various Java utility classes including transactional collections, collection helpers, synchronisation utilities, thread utilities and build utilities classes.
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JSON Search, Other Utilities
Lightweight utility classes that complement the standard libraries.
...Most of the classes in this package are standalone files without dependencies on other classes inside or outside of this package. Some classes are more procedural than others in the sense that they are simply collections of static methods. Some classes are meant to enforce certain design patterns. This is an ongoing project. Java documentation is available on project website: http://jsonjavasearchmore.sourceforge.net -
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Last Java Collection Library
Java library to work with scalar arrays as usual Collections
The package allows to work with scalar arrays as usual collections. The problem with a scalar array Java templates don't support scalar types as generic parameters. Java code working with collection interfaces such as List or Collection is inapplicable for arrays. Some libraries supply methods to work with object array. These methods are generic and built-in types int, boolean, long, short, byte, double, float suffer.
