Swift
let label = UILabel()
Objective-C
UILabel *label = [[UILabel alloc] init];
or
UILabel *label = [UILabel new]; // convenience method for calling alloc-init
Change the default font’s size
Swift
label.font = UIFont.systemFontOfSize(17)
Swift 3
label.font = UIFont.systemFont(ofSize: 17)
Objective-C
label.font = [UIFont systemFontOfSize:17];
Use a specific font weight
Swift
label.font = UIFont.systemFontOfSize(17, weight: UIFontWeightBold)
Swift3
label.font = UIFont.systemFont(ofSize: 17, weight: UIFontWeightBold)
Objective-C
label.font = [UIFont systemFontOfSize:17 weight:UIFontWeightBold];