What kind of memory management mechanisms can Cocoa uses?

Can you use NSLock on a POSIX mutex?

Fill the blank NSView : <> : NSObject

Can an object marked for autorelease be retained?

Is NSRunLoop thread safe?

What will be the output of the following code? NSRect rect = NSMakeRect(0, 0, 10, 10); NSRect *rect2 = malloc(sizeof(*rect2)); if(!rect2) { NSLog(@'Not enough memory.'); exit(EXIT_FAILURE); } *rect2 = rect; printf('%d\n', rect.size.width);

What is the proper statement?

Which objects DO exist in the Cocoa framework?

Does the current iOS version support multitasking?

Which language are iOS apps coded in?

Before you can begin,you must download and install the ____.