Correction bug, modernisation

app/src/main/java/com/example/boidelov3/DatabaseConnection.java

@@ -1,6 +1,7 @@
 package com.example.boidelov3;
 
 import android.os.AsyncTask;
+import com.example.boidelov3.BuildConfig;
 
 import com.impossibl.postgres.api.jdbc.PGConnection;
 
@@ -9,9 +10,9 @@ import java.sql.DriverManager;
 import java.sql.SQLException;
 
 public class DatabaseConnection extends AsyncTask<Void, Void, PGConnection> {
-    private static final String DB_URL = "jdbc:postgresql://82.65.214.214:5432/boidelo";
-    private static final String USER = "Tux2543";
-    private static final String PASSWORD = "6wa*teCnuxsG#grAc5HzC!Rh%#@c&";
+    private static final String DB_URL = BuildConfig.DB_URL;
+    private static final String USER = BuildConfig.DB_USER;
+    private static final String PASSWORD = BuildConfig.DB_PASSWORD;
 
     @Override
     protected PGConnection doInBackground(Void... params) {