private void populateGraph()
{
graph.addEdge(vertices[6], vertices[0]);
graph.addEdge(vertices[1], vertices[0]);
graph.addEdge(vertices[0], vertices[5]);
graph.addEdge(vertices[0], vertices[4]);
graph.addEdge(vertices[5], vertices[4]);
graph.addEdge(vertices[3], vertices[5]);
graph.addEdge(vertices[5], vertices[3]);
graph.addEdge(vertices[1], vertices[2]);
graph.addEdge(vertices[6], vertices[1]);
graph.addEdge(vertices[1], vertices[5]);
graph.addEdge(vertices[4], vertices[3]);
graph.printEdges();
}