IntelliJ IDEA

mapdbjankotek/MapDB

An embedded Java database engine providing concurrent collections backed by disk storage or off-heap memory.

Kotlin coding puzzlesigorwojda/kotlin-coding-puzzle

A collection of Kotlin coding challenges with solutions and tests to practice algorithms and data structures.

Kolobokeleventov/Koloboke

A high-performance Java Collections Framework extension with primitive specializations and drop-in replacements for JDK collections.

KolobokeOpenHFT/Koloboke

A Java Collections Framework extension with high-performance primitive specializations and drop-in replacements for JDK collections.

mapbox-javamapbox/mapbox-java

Java SDK providing wrappers for Mapbox APIs including directions, geocoding, and other location services.

HyperLap2Drednblackgames/HyperLap2D

A platform-independent visual editor for designing complex 2D worlds and scenes, with open JSON output for game engine integration.

R5: Rapid Realistic Routing on Real-world and Reimagined networksconveyal/r5

A routing engine for multimodal transportation networks with realistic travel-time calculations, designed for accessibility analysis and scenario planning.

ArcGIS Maps SDK for Java cEsri/arcgis-maps-sdk-java-samples

A collection of sample projects demonstrating how to build desktop mapping and GIS applications using the ArcGIS Maps SDK for Java.