Using enum in Objective-C?

Is this the correct (or even a valid way) to use emums in Objective-C? i.e. The menuItem is not used but just defines a list add=1, load=2, list=3 etc.

enum menuItems {
    add = 1    ,
    save       ,
    load       ,
    list       ,
    removeAll  ,
    remove     ,
    quit       
};

int optionSelect;

scanf("%d", &optionSelect);

switch (optionSelect) {
    case add: 
        //...
        break;
}

cheers gary