Rewrites and Formatting

exam/classes/Database/Database.php

@@ -3,6 +3,7 @@
 namespace Khofmann\Database;
 
 use PDO;
+use Config\Config;
 
 class Database extends PDO
 {
@@ -17,7 +18,7 @@ class Database extends PDO
   {
     $cls = static::class;
     if (!isset(self::$instances[$cls])) {
-      $dataAccess = \Config\Config::getDatabase();
+      $dataAccess = Config::getDatabase();
       self::$instances[$cls] = new static(
         "mysql:host={$dataAccess["host"]};dbname={$dataAccess["database"]};charset={$dataAccess["charset"]}",
         $dataAccess["user"],