from jhplot  import *
from java.net import *
import sys

g=HGraph().buildDirectedGraph()

amazon =URL("http://www.amazon")
yahoo = URL("http://www.yahoo")
ebay = URL("http://www.ebay")

# add the vertices
g.addVertex(amazon)
g.addVertex(yahoo)
g.addVertex(ebay)

# add edges to create linking structure
g.addEdge(yahoo, amazon)
g.addEdge(yahoo, ebay)

# pring graph
print g

HGraph().showGraph(g) # visualize graph 
# sys.exit()