iOS stupid question but must to clarify

[tranvutuan]

myClass.m
@interface myClass {
   NSMutableArray   *myArray;

}
@end
@implement
.....
.....

What is the purpose when you are trying declare a variable like above. How it looks differently when you declare like beloew

myClass.h
@import "UIKit/UIKit.h"

@interface myClass () <TableViewDataSource>
NSMutableArray *myArray

@end

Please advice me about this. thanks

 

[jnoxx]

There are several mistakes here, but are you trying to say, what are private interfaces?
In the first block, you are defining a private interface upon that class ,that can be used only in the implementation file.
If you do it by the last way, every class that imports your myClass can call this method, and with PRIVATE interfaces, they can't, don't know if this sounds logic, but that's kinda it