Ma perchè non li leggete i messaggi di errore?!?!
Stai sforando con gli indici nella classe Parametri alla riga 27.codice:java.lang.StringIndexOutOfBoundsException : String index out of range: -1 at java.lang.String.substring(Unknown Source) at MainProject.Parametri.setServer(Parametri.java:27) at MainProject.SchIniziale.<init>(SchIniziale.java:33) at MainProject.SchIniziale$5.run(SchIniziale.java:169) at java.awt.event.InvocationEvent.dispatch(Unknown Source) at java.awt.EventQueue.dispatchEventImpl(Unknown Source) at java.awt.EventQueue.access$000(Unknown Source) at java.awt.EventQueue$1.run(Unknown Source) at java.awt.EventQueue$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source)