public FileSaverDescriptor(@NotNull String title,@NotNull String description,String... extensions){
  super(true,true,true,true,false,false);
  setTitle(title);
  setDescription(description);
  this.extensions=Arrays.asList(extensions);
}

public FileSaverDescriptor ( @ NotNull String title , @ NotNull String description , String ... extensions ) { super ( true , true , true , true , false , false ) ; setTitle ( title ) ; setDescription ( description ) ; this . extensions = Arrays . asList ( extensions ) ; }
constructs save dialog properties
