diff --git a/src/main/java/io/github/auberonedu/equalsLivecode/App.java b/src/main/java/io/github/auberonedu/equalsLivecode/App.java
index 53efd3e..8b51a12 100644
--- a/src/main/java/io/github/auberonedu/equalsLivecode/App.java
+++ b/src/main/java/io/github/auberonedu/equalsLivecode/App.java
@@ -17,7 +17,14 @@ public static void main(String[] args) {
         System.out.println("Result of locA == locB " + (locA == locB));
         System.out.println("Result of locA.equals(locB) " + locA.equals(locB));
 
-        videoDemo();
+        Set<Centroid> centroids = new HashSet<>();
+        System.out.println(locA.hashCode());
+        System.out.println(locB.hashCode());
+        centroids.add(locA);
+        centroids.add(locB);
+        System.out.println(centroids.size());
+
+        //videoDemo();
     }
 
     // We will look at this a bit later in the livecode, please ignore for first part
diff --git a/src/main/java/io/github/auberonedu/equalsLivecode/Centroid.java b/src/main/java/io/github/auberonedu/equalsLivecode/Centroid.java
index b0e343a..4a18769 100644
--- a/src/main/java/io/github/auberonedu/equalsLivecode/Centroid.java
+++ b/src/main/java/io/github/auberonedu/equalsLivecode/Centroid.java
@@ -19,7 +19,55 @@ public int getC() {
         return c;
     }
 
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + r;
+        result = prime * result + c;
+        result = prime * result + ((name == null) ? 0 : name.hashCode());
+        return result;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        Centroid other = (Centroid) obj;
+        if (r != other.r)
+            return false;
+        if (c != other.c)
+            return false;
+        if (name == null) {
+            if (other.name != null)
+                return false;
+        } else if (!name.equals(other.name))
+            return false;
+        return true;
+    }
+
     public String getName() {
         return name;
     }
+/** 
+    @Override
+    public boolean equals(Object o){
+        if(o == null) return false;
+        if(getClass() != o.getClass()) return false;
+        Centroid other = (Centroid) o;
+        if(r != other.r) return false;
+        if(c != other.c) return false;
+        if(name == null){
+            if(other.name == null) return true;
+            if(other.name != null) return false;
+        }
+        if(!name.equals(other.name)) return false;
+        return true;
+    }
+
+*/
 }