diff --git a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/AStarAlgorithm.java b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/AStarAlgorithm.java
index b1f515a..050c21f 100644
--- a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/AStarAlgorithm.java
+++ b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/AStarAlgorithm.java
@@ -8,7 +8,7 @@ public class AStarAlgorithm extends DijkstraAlgorithm {
         super(data);
     }
 
-        //@Override
+    // creates an 'empty' labelstar for the node given in argument
     public LabelStar newLabel(Node s, ShortestPathData dataPath) {
         return new LabelStar(s, false, Integer.MAX_VALUE, null,
                 s.getPoint().distanceTo(dataPath.getDestination().getPoint()));
diff --git a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithm.java b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithm.java
index 1922d9e..8da7c4a 100644
--- a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithm.java
+++ b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithm.java
@@ -16,6 +16,7 @@ public class DijkstraAlgorithm extends ShortestPathAlgorithm {
         super(data);
     }
 
+    // creates an 'empty' label for the node given in argument
     public Label newLabel(Node s) {
         return new Label(s, false, Double.MAX_VALUE, null);
     }
@@ -43,7 +44,6 @@ public class DijkstraAlgorithm extends ShortestPathAlgorithm {
                 notifyOriginProcessed(nod);
             }
         }
-
         Label xl = tas.findMin();
 
         // iterations
diff --git a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/Label.java b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/Label.java
index 88c00b4..c5c1e9d 100644
--- a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/Label.java
+++ b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/Label.java
@@ -37,11 +37,13 @@ public class Label implements Comparable<Label> {
         return this.cout;
     }
 
+    // updates the label with the given arc and cost
     public void update(Arc p, double c){
         this.pere = p;
         this.cout = c;
     }
 
+    // compares the labels in term of cost
     @Override
     public int compareTo(Label l) {
         if (this.getCost() < l.getCost()) {
diff --git a/be-graphes-algos/target/classes/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithm.class b/be-graphes-algos/target/classes/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithm.class
index 7379db3..6ebceee 100644
Binary files a/be-graphes-algos/target/classes/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithm.class and b/be-graphes-algos/target/classes/org/insa/graphs/algorithm/shortestpath/DijkstraAlgorithm.class differ
diff --git a/be-graphes-algos/target/classes/org/insa/graphs/algorithm/shortestpath/Label.class b/be-graphes-algos/target/classes/org/insa/graphs/algorithm/shortestpath/Label.class
index 2822959..e85e138 100644
Binary files a/be-graphes-algos/target/classes/org/insa/graphs/algorithm/shortestpath/Label.class and b/be-graphes-algos/target/classes/org/insa/graphs/algorithm/shortestpath/Label.class differ