public static Integer intValue(String propName,Integer dflt){
  String sysProp=getProperty(propName);
  return (sysProp != null && !sysProp.isEmpty()) ? Integer.getInteger(sysProp) : dflt;
}

public static Integer intValue ( String propName , Integer dflt ) { String sysProp = getProperty ( propName ) ; return ( sysProp != null && ! sysProp . isEmpty ( ) ) ? Integer . getInteger ( sysProp ) : dflt ; }
returns boolean value from system property or provided function .
