From d59afd7901b19bb9269d625ea3140498f86b718b Mon Sep 17 00:00:00 2001
From: Kayla <kaylacharky@hotmail.com>
Date: Mon, 7 Dec 2020 00:12:50 -0500
Subject: [PATCH] #41 fix typo

---
 .../src/main/java/smarthomesimulator/interfaces/Observable.java | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/smart-home-simulator/src/main/java/smarthomesimulator/interfaces/Observable.java b/smart-home-simulator/src/main/java/smarthomesimulator/interfaces/Observable.java
index 0fae63b..c0c254e 100644
--- a/smart-home-simulator/src/main/java/smarthomesimulator/interfaces/Observable.java
+++ b/smart-home-simulator/src/main/java/smarthomesimulator/interfaces/Observable.java
@@ -1,5 +1,7 @@
 package smarthomesimulator.interfaces;
 
 public interface Observable {
+    public void attachObserver(Observer o);
+    public void detachObserver(Observer o);
     void notifyObserver(Observable observable);
 }