IndexGraph. java in a programe

IndexGraph.java

public class IndexGraph

 {

 public static void main(String[] args)

    {

        In in = new In(args[0]);

        String delimiter = args[1];

        Graph G = new Graph(in, delimiter);

             while (!StdIn.isEmpty())

            {

            String v = StdIn.readLine();

            for (String w : G.adjacentTo(v))

           {

                StdOut.println("  " + w);

            }

        }

    }

}