question: protected boolean display ( File helpFile ) throws HelpException { if ( helpFile . exists ( ) ) { loadAndWrite ( helpFile ) ; return true ; } else { File notFound = new File ( helpDir , NOT_FOUND ) ; if ( notFound . exists ( ) ) loadAndWrite ( notFound ) ; else throw new HelpException ( "Topic not found, try 'help' for more information" ) ; return false ; } }
target:  Displays the requested help file if it is found. If not, we first try to display the default not found message. If that is not available, we display a default message.