diff --git a/src/main/java/org/ntlab/tampoposerver/models/ChatRooms.java b/src/main/java/org/ntlab/tampoposerver/models/ChatRooms.java
new file mode 100644
index 0000000..ad04de2
--- /dev/null
+++ b/src/main/java/org/ntlab/tampoposerver/models/ChatRooms.java
@@ -0,0 +1,47 @@
+package org.ntlab.tampoposerver.models;
+
+import java.util.Collection;
+
+public class ChatRooms {
+    private Integer chatRoomId;
+    private String user0Id;
+    private String user1Id;
+    private String newContent;
+    private String chatRoomNumber;
+
+    public ChatRooms(Integer chatRoomId, String user0Id, String user1Id) {
+        this.chatRoomId = chatRoomId;
+    }
+
+    public Integer getChatRoomId() {
+        return chatRoomId;
+    }
+
+    public void setChatRoomId(Integer chatRoomId) {
+        this.chatRoomId = chatRoomId;
+    }
+
+    public void addUser(String userId) {
+    }
+
+    public void put(Integer chatRoomId, String chatRoomNumber) {
+    }
+
+    public Integer updateMessage() {
+        return chatRoomId;
+    }
+
+    public ChatRooms updateMessage(Integer chatRoomId, String userId, String newContent) {this.chatRoomId = chatRoomId;
+    this.user0Id = userId;
+    this.newContent = newContent;
+    return this;}
+
+    public ChatRooms addMessage(String senderId, String content) {
+        return null;
+    }
+
+    public ChatRooms getMessages() {
+        return null;
+    }
+}
+