declare variables final when possible

1 files changed, 3 insertions, 3 deletions

diff --git a/src/com.example.portfolio3/com/example/portfolio3/AdjListGraph.java b/src/com.example.portfolio3/com/example/portfolio3/AdjListGraph.java
index babaaaa..765eeca 100644
--- a/src/com.example.portfolio3/com/example/portfolio3/AdjListGraph.java
+++ b/src/com.example.portfolio3/com/example/portfolio3/AdjListGraph.java
@@ -18,7 +18,7 @@ public class AdjListGraph extends AbstractGraph {
   private Map<Vertex,Set<Edge>> outEdge= new HashMap<>();
 
   /// foo
-  public void insertEdge(Vertex v1,Vertex v2,int w){
+  public void insertEdge(final Vertex v1, final Vertex v2, final int w){
     Edge e=new Edge(v1,v2,w);
     if(!outEdge.containsKey(e.from()))
       outEdge.put(e.from(),new HashSet<Edge>());
@@ -33,14 +33,14 @@ public class AdjListGraph extends AbstractGraph {
   }
 
   /// foo
-  public Collection<Edge> outEdge(Vertex v){
+  public Collection<Edge> outEdge(final Vertex v){
     if(!outEdge.containsKey(v))
       return new HashSet<Edge>();
     return outEdge.get(v);
   }
 
   /// foo
-  public Integer getWeight(Vertex v1,Vertex v2){
+  public Integer getWeight(final Vertex v1, final Vertex v2){
     // linear in number of outedges from vertices
     if(!outEdge.containsKey(v1))return null;
     for(Edge e:outEdge.get(v1)){