GeoTools
GeoTools is an open-source Java library that provides tools for geospatial data processing and mapping. It supports a wide range of geospatial data formats and standards, enabling developers to build applications for tasks like spatial analysis, data conversion, and map rendering. The library is widely used in GIS (Geographic Information Systems) and location-based services.
Developers should learn GeoTools when building Java-based applications that require geospatial functionality, such as web mapping services, environmental modeling, or urban planning tools. It is particularly valuable for handling complex spatial data operations, integrating with other GIS systems, and ensuring compliance with OGC (Open Geospatial Consortium) standards for interoperability.