Fixato bug e implementato alcune funzioni.

graph/BFS.java

@@ -9,7 +9,7 @@ import arraylist.IndexList;
 import position.NodePositionList;
 import position.PositionList;
 
-import java.security.InvalidKeyException;
+import exceptions.InvalidKeyException;
 
 public abstract class BFS<V, E, I, R> {
     protected Graph<V, E> graph;

graph/ComponentsBFS.java

@@ -2,7 +2,7 @@
 
 package graph;
 
-import java.security.InvalidKeyException;
+import exceptions.InvalidKeyException;
 
 public class ComponentsBFS<V, E> extends BFS<V, E, Object, Integer> {
     protected Integer compNumber;
@@ -13,16 +13,11 @@ public class ComponentsBFS<V, E> extends BFS<V, E, Object, Integer> {
     }
 
     protected void startVisit(Vertex<V> v) {
-        try {
             v.put(COMPONENT, compNumber);
-        }
-        catch (InvalidKeyException e){
-
-        }
     }
     
     protected Integer finalResult(Integer bfsResult) {
-        try {
+
             for(Vertex<V> v : graph.vertices())
                 if(!isVisited(v)) {
                 compNumber++;
@@ -30,10 +25,5 @@ public class ComponentsBFS<V, E> extends BFS<V, E, Object, Integer> {
                 }
 
             return compNumber;
-        }
-        catch (InvalidKeyException e){
-
-        }
-        return null;
     }
 }

graph/ComponentsDFS.java

@@ -2,7 +2,7 @@ package graph;
 
 //begin#fragment CC
 
-import java.security.InvalidKeyException;
+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> {

graph/DFS.java

@@ -1,7 +1,7 @@
 package graph;
 
 
-import java.security.InvalidKeyException;
+import exceptions.InvalidKeyException;
 
 /** Generic DFS traversal of a graph using the template method pattern.
   * Parameterized types: