"unused" not necessary

ws/eclipse/Sda1PreExam/src/party/PartyStatisticsAverageImpl.java

@@ -20,7 +20,7 @@ abstract class PartyStatisticsAverageImpl implements PartyStatistics {
         }
     }
     
-    @SuppressWarnings("unused") protected int numGuests = 0; // Just for setter definition.
+    protected int numGuests = 0; // Just for setter definition.
     protected int numOrganizers = 0;
     protected float expenses = 0f;
 }