check for the item . concode_field_sep ArrayList<Edge> edges concode_elem_sep ArrayList<Node> nodes concode_elem_sep Graph graph concode_field_sep ArrayList<Node> getNodes concode_elem_sep boolean addNode concode_elem_sep void addNodes concode_elem_sep void addEdges concode_elem_sep Graph getGraph concode_elem_sep void clear concode_elem_sep String toString concode_elem_sep ArrayList<Edge> getEdges concode_elem_sep boolean addEdge
boolean function ( Node arg0 ) { if ( nodes . contains ( arg0 ) ) { return ( true ) ; } return ( false ) ; }