In Java, I may have a class, for example, Utility and I have a static method called changeToCapitalLetter, so I can do something like this:
Utility
changeToCapitalLetter
In Objective-C, you call this "class methods", see here:
@interface MyClass : NSObject + (void)aClassMethod; - (void)anInstanceMethod; @end
The + is the important thing; you call the method like this: [MyClass aClassMethod];
[MyClass aClassMethod];