diff --git a/src/main/java/com/ntlab/irisserver/models/RoomManager.java b/src/main/java/com/ntlab/irisserver/models/RoomManager.java
index 0ad8cf7..e3fef6e 100644
--- a/src/main/java/com/ntlab/irisserver/models/RoomManager.java
+++ b/src/main/java/com/ntlab/irisserver/models/RoomManager.java
@@ -12,14 +12,14 @@
     private static RoomManager theInstance = null;
     private Map<String, Room> rooms = new HashMap<String, Room>();
 
-    public static RoomManager getInstance(){
-        if(theInstance == null){
+    public static RoomManager getInstance() {
+        if(theInstance == null) {
             theInstance = new RoomManager();
         }
         return theInstance;
     }
 
-    public Room createRoom(String owner){
+    public Room createRoom(String owner) {
         UUID uuid = UUID.randomUUID();
         String rid = uuid.toString(); //uuid型からstring型に変換
         Room r = new Room(rid, owner);
@@ -27,12 +27,12 @@
         return r;
     }
 
-    public Room getRoom(String rid){
+    public Room getRoom(String rid) {
         Room r = rooms.get(rid);
         return r;
     }
 
-    public void deleteRoom(String rid){
+    public void deleteRoom(String rid) {
         rooms.remove(rid);
     }