Prefixing property names with an underscore in Objective C [duplicate]

Answer 1

I will just point out that a new navigation project using core data uses trailing underscores by default and makes the variables private.

@interface MyTestAppDelegate : NSObject <UIApplicationDelegate> {

    UIWindow *window;
    UINavigationController *navigationController;

@private
    NSManagedObjectContext *managedObjectContext_;
    NSManagedObjectModel *managedObjectModel_;
    NSPersistentStoreCoordinator *persistentStoreCoordinator_;
}

@interface RootViewController : UITableViewController <NSFetchedResultsControllerDelegate> {

@private
    NSFetchedResultsController *fetchedResultsController_;
    NSManagedObjectContext *managedObjectContext_;
}