JGraphT is a free Java graph library that provides mathematical graph-theory objects and algorithms.
JGraphT supports various types of graphs including:
- directed and undirected graphs.
- graphs with weighted / unweighted / labeled or any user-defined edges.
- various edge multiplicity options, including: simple-graphs, multigraphs, pseudographs.
- unmodifiable graphs - allow modules to provide "read-only" access to internal graphs.
- listenable graphs - allow external listeners to track modification events.
- subgraphs graphs that are auto-updating subgraph views on other graphs.
- all compositions of above graphs. Although powerful, JGraphT is designed to be simple and type-safe (via Java generics). For example, graph vertices can be of any objects. You can create graphs based on: Strings, URLs, XML documents, etc; you can even create graphs of graphs! This code example shows how.
Other features offered by JGraphT:
- graph visualization using the JGraph library
- complete source code included, under the terms of the GNU Lesser General Public License.
- comprehensive Javadocs.
- easy extensibility.
Official website: http://jgrapht.org/
