How to implement graph in core java?

Question

I\'ve a directed unweighted graph. Number of nodes and all links between nodes are given. I tried to do the task with array of vectors but java doesn\'t support it. ArrayLis

Answer 1

You could use many collection data structures, in particular hash tables or sets, for your purpose. Java gives you a lot of collection generic containers (HashMap-s, ArrayList-s etc etc.). I'm not a Java expert, but searching for Java Collections give a big lot of results, e.g. this tutorial