diff --git a/DAO/AndDAO.java b/DAO/AndDAO.java
new file mode 100644
index 0000000..47b9635
--- /dev/null
+++ b/DAO/AndDAO.java
@@ -0,0 +1,63 @@
+package DAO;
+
+import java.sql.*;
+
+public class AndDAO {
+    private static String url = "jdbc:mysql://127.0.0.1:3306/andorid?serverTimezone=UTC";
+    private static String user = "root";
+    private static String password = "19970426";
+
+    public static void add(String receive, String response) {
+
+        String sql = "INSERT INTO andorid (receive,response) VALUES(?,?)";
+        try(Connection connection = DriverManager.getConnection(url,user,password)){
+            Class.forName("com.mysql.jdbc.Driver");
+            PreparedStatement ps = connection.prepareStatement(sql);
+            ps.setString(1,receive);
+            ps.setString(2,response);
+            ps.execute();
+        }catch (ClassNotFoundException | SQLException e){
+            e.printStackTrace();
+        }
+    }
+
+    public static void delete(int id) {
+
+        String sql = "DELETE FROM TABLE andorid WHERE id=?";
+        try(Connection connection = DriverManager.getConnection(url,user,password)){
+            Class.forName("com.mysql.jdbc.Driver");
+            PreparedStatement ps = connection.prepareStatement(sql);
+            ps.setInt(1,id);
+            ps.execute();
+        }catch (ClassNotFoundException | SQLException e){
+            e.printStackTrace();
+        }
+    }
+
+    public static String search(String text) {
+
+        String sql = "SELECT receive,response FROM andorid";
+        String comman = "i do not know";
+
+        try {
+            Class.forName("com.mysql.cj.jdbc.Driver");
+        }catch (ClassNotFoundException e){
+            e.printStackTrace();
+        }
+
+        try(Connection connection = DriverManager.getConnection(url,user,password)){
+            PreparedStatement ps = connection.prepareStatement(sql);
+            ResultSet rs = ps.executeQuery();
+
+            while(rs.next()){
+                String result = rs.getString("receive");
+                if(text.equals(result)){
+                    comman = rs.getString("response");
+                }
+            }
+        }catch (SQLException e){
+            e.printStackTrace();
+        }
+        return comman;
+    }
+}