How to implement graph data structure in java? Is there an existing library?

Question

I would like to implement a graph data structure in java to maintain a graph of objects. How do I achieve this? Is there an accessible library that can help?

Answer 1

Is there a readily available library which could help?

DSL is a data structure library in Java

JGraphT is a free Java charting library that provides mathematical graphology objects and algorithms.

JUNG is a universal Java / Graph Framework

Answer 2

JUNG JGRAPH

And read this, can help you javax.swing.tree.TreeModel