var loggerDataBase = new JobLogger();
        loggerDataBase.AddFormatProvider(new DataBaseProvider(new Logger.exam.Logger.DataBaseEntry()));
        loggerDataBase.WriteError("example write error in database");
        loggerDataBase.WriteMessage("example write message in database");
        loggerDataBase.WriteWarning("example write warning in database");

        var loggerFile = new JobLogger();
        loggerFile.AddFormatProvider(new FileProvider(new Logger.exam.Logger.FileEntry()));
        loggerFile.WriteError("example write error in file");
        loggerFile.WriteMessage("example write message in file");
        loggerFile.WriteWarning("example write warning in file");

        var loggerConsole = new JobLogger();
        loggerConsole.AddFormatProvider(new ConsoleProvider(new Logger.exam.Logger.ConsoleEntry()));
        loggerConsole.WriteError("example write error in console");
        loggerConsole.WriteMessage("example write message in console");
        loggerConsole.WriteWarning("example write warning in console");

        var loggerAllProvider = new JobLogger();
        loggerAllProvider.AddFormatProvider(new ConsoleProvider(new Logger.exam.Logger.ConsoleEntry()));
        loggerAllProvider.AddFormatProvider(new FileProvider(new Logger.exam.Logger.FileEntry()));
        loggerAllProvider.AddFormatProvider(new DataBaseProvider(new Logger.exam.Logger.DataBaseEntry()));

        loggerAllProvider.WriteError("example write error in console, database and file");
        loggerAllProvider.WriteMessage("example write message console, database and file");
        loggerAllProvider.WriteWarning("example write warning console, database and file");