Update Location.java

src/edu/caltech/cs2/datastructures/Location.java

@@ -87,6 +87,7 @@ public class Location {
         return new Location(0, lat1, lon1, null, null, null, null, "building").getDistance(lat2, lon2);
     }
 
+    @Override
     public String toString() {
         StringBuilder s = new StringBuilder();
         s.append("{");
@@ -112,11 +113,13 @@ public class Location {
         s.append("}");
         return s.toString();
     }
-
+    
+    @Override
     public int hashCode() {
         return Long.hashCode(this.id);
     }
 
+    @Override
     public boolean equals(Object o) {
         if (!(o instanceof Location)) {
             return false;