Modificato alcune classi

graph/ComponentsDFS.java

@@ -1,35 +1,21 @@
 package graph;
 
-//begin#fragment CC
-
-import exceptions.InvalidKeyException;
-
 /** This class extends DFS to compute the connected components of a graph. */
 public class ComponentsDFS<V, E> extends DFS<V, E, Object, Integer> {
   protected Integer compNumber; // Connected component number
   protected Object COMPONENT = new Object(); // Connected comp. selector
   protected void setup() { compNumber = 1; }
   protected void startVisit(Vertex<V> v) {
-      try{
       v.put(COMPONENT, compNumber);
-      }
-      catch (InvalidKeyException e){
-      //
-      }
   }
   protected Integer finalResult(Integer dfsResult) {
-      try{
         for (Vertex<V> v : graph.vertices()) // check for any unvisited vertices
           if (v.get(STATUS) == UNVISITED) {
             compNumber += 1;  // we have found another connected component
         dfsTraversal(v);  // visit all the vertices of this component
           }
         return compNumber;
-      }
-      catch (InvalidKeyException e){
-          //
-      }
-      return null;
+
   }
 }
-//end#fragment CC
+