1: public boolean connect(VertexInterface<T> endVertex, double edgeWeight) 2: { 3: boolean result = false; 4: 5: if (!this.equals(endVertex)) 6: { // Vertices are distinct 7: Iterator<VertexInterface<T>> neighbors = getNeighborIterator(); 8: boolean duplicateEdge = false; 9: 10: while (!duplicateEdge && neighbors.hasNext()) 11: { 12: VertexInterface<T> nextNeighbor = neighbors.next(); 13: if (endVertex.equals(nextNeighbor)) 14: duplicateEdge = true; 15: } // end while 16: 17: if (!duplicateEdge) 18: { 19: edgeList.add(new Edge(endVertex, edgeWeight)); 20: result = true; 21: } // end if 22: } // end if 23: 24: return result; 25: } // end connect 26: 27: public boolean connect(VertexInterface<T> endVertex) 28: { 29: return connect(endVertex, 0); 30: } // end connect 31: // Version 4.0