1: // @author Frank M. Carrano, Timothy M. Henry 2: // @version 5.0 3: BasicGraphInterface<String> airMap = new UndirectedGraph<String>(); 4: airMap.addVertex("Boston"); 5: airMap.addVertex("Provincetown"); 6: airMap.addVertex("Nantucket"); 7: airMap.addEdge("Boston", "Provincetown"); 8: airMap.addEdge("Boston", "Nantucket");