Cycle Detection for Directed and Undirected Graphs in Java | Check if a Graph has a Cycle | Geekific

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In our previous videos, we covered what graphs are, how many types of graphs we have, and we’ve learned a few graph traversal algorithms and techniques. In this video we focus on cyclic graphs, both directed and undirected. More specifically, we’ll see how to detect, in code, if any of these graph types contains a cycle.
Timestamps:
00:00 Introduction
00:28 What are Cycles?
01:13 Detecting a Cycle in a Directed Graph
03:33 Cycle Detection for Directed Graphs Implementation
07:12 Detecting a Cycle in a Undirected Graph
09:26 Thanks for Watching!
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#Geekific #CycleDetection #GraphTheory #DFS #BFS

[@tomasalves5182]

Thanks, i've been searching for hours but only this did the trick, thank you so much

[@tedelamater]

I feel like BFS is easier to find cycles.

[@manOfPlanetEarth]

Niiiice!!! One small remark. Boolean "onCurrentPath" instead of "beingVisited" would be more reflecting what's going on:) We have multiple being visited vertices in the path under exploring while function "hasCycle" at every moment works with only one vertex. It confuses. Even boolean "green" would be more self-telling:) 2. As I get your "stream branded" approach is not applicable here because of need to return value (boolean), is it? Thank you for the material🥳

[@geekific]

Glad I could help :) and 2-Yup.