private void setMainInfo() { String none = "None"; subject = GlobalNamespace.fromParam( req.getParameterValues(parityPrefix + "subject")[classNumber], none); type = GlobalNamespace.fromParam(req.getParameterValues(parityPrefix + "type")[classNumber], none); classroom = GlobalNamespace.fromParam( req.getParameterValues(parityPrefix + "classroom")[classNumber], none); teacher = GlobalNamespace.fromParam( req.getParameterValues(parityPrefix + "teacher")[classNumber], none); }