question: public boolean execute ( ) { while ( ! checkPromptNeeded ( ) ) { Object [ ] possibleValues ; if ( action != null ) { possibleValues = new Object [ ] { Bundle . getMessage ( "ButtonContinue" ) , Bundle . getMessage ( "ButtonAbort" ) , action } ; } else { possibleValues = new Object [ ] { Bundle . getMessage ( "ButtonContinue" ) , Bundle . getMessage ( "ButtonAbort" ) } ; } int selectedValue = JOptionPane . showOptionDialog ( component , warning , Bundle . getMessage ( "ShutDownWarningTitle" ) , JOptionPane . DEFAULT_OPTION , JOptionPane . WARNING_MESSAGE , null , possibleValues , possibleValues [ possibleValues . length - 1 ] ) ; if ( selectedValue == 1 ) { return false ; } else if ( selectedValue == 0 ) { return true ; } else if ( selectedValue == 2 ) { return doPrompt ( ) ; } else if ( selectedValue == - 1 ) { return doClose ( ) ; } else { log . error ( "unexpected selection: " + selectedValue ) ; return true ; } } return true ; }
target:  Take the necessary action.