public static void main(String[] args)
	{
		GraphProperties GP = null;
		Graph G = null;
		try
		{
			G = new Graph(new In(args[0]));
			GP = new GraphProperties(G);
		}
		catch (Exception e)
		{
			System.out.println(e);
			System.exit(1);
		}

		System.out.println(args[0] + "\n" + G.toString());
		for (int v = 0; v < G.V(); v++)
			System.out.println("Eccentricity of " + v + " = "
					+ GP.eccentricity(v));
		System.out.println("Diameter = " + GP.diameter());
		System.out.println("Radius = " + GP.radius());
		System.out.println("Center is " + GP.center());
	}