diff --git a/src/main/java/com/example/cosmos_serversb/entities/Group.java b/src/main/java/com/example/cosmos_serversb/entities/Group.java
new file mode 100644
index 0000000..086549a
--- /dev/null
+++ b/src/main/java/com/example/cosmos_serversb/entities/Group.java
@@ -0,0 +1,4 @@
+package com.example.cosmos_serversb.entities;
+
+public class Group {
+}
diff --git a/src/main/java/com/example/cosmos_serversb/models/Groups.java b/src/main/java/com/example/cosmos_serversb/models/Groups.java
new file mode 100644
index 0000000..9d158a1
--- /dev/null
+++ b/src/main/java/com/example/cosmos_serversb/models/Groups.java
@@ -0,0 +1,48 @@
+package com.example.cosmos_serversb.models;
+
+
+import java.util.*;
+import javax.inject.Singleton;
+import com.example.cosmos_serversb.entities.*;
+
+enum Respons{
+    aaa
+}
+
+
+@Singleton
+public class Groups {
+    private  static  Groups thaInstance = null;
+    private ArrayList<Groups> accounts = new ArrayList<>();
+
+
+    private Groups(){
+
+    }
+
+    public static Groups getInstance(){
+        if(thaInstance == null){
+            thaInstance = new Groups();
+        }
+        return thaInstance;
+    }
+
+    public ArrayList<Groups> groupsList(String uId, String token){
+        return null;
+    }
+
+    public Group createGroup(String name, String uId, String token){
+        return null;
+    }
+
+    public Group getGrupeByGroupId(String gId, String token){
+        return null;
+    }
+
+    public Respons deleteGroup(String gId, String token){
+        return null;
+    }
+
+
+
+}