This Comprehensive Java Graph Tutorial Explains Graph Data Structure in detail. It includes how to Create, Implement, Represent & Traverse Graphs in Java:

A graph data structure mainly represents a network connecting various points. These points are termed as vertices and the links connecting these vertices are called 'Edges'. So a graph g is defined as a set of vertices V and edges E that connect these vertices.

Graphs are mostly used to represent various networks like computer networks, social networks, etc. They can also be used to represent various dependencies in software or architectures. These dependency graphs are very useful in analyzing the software and also at times debugging it.

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Java Graph Data Structure

Different Variants Of Graph

Directed Graph

Weighted Graph

How To Create A Graph?

Graph Representation In Java

Adjacency Matrix

Adjacency List

Java Graph Data Structure

Given below is a graph having five vertices {A,B,C,D,E} and edges given by {{AB},{AC},{AD},{BD},{CE},{ED}}. As the edges do not show any directions, this graph is known as 'undirected graph'.

Apart from the undirected graph shown above, there are several variants of the graph in Java.