In the Interface Builder, the _______ contains stock items in Cocoa that you can drag-and-drop into your application.

True or False? Objective-C is a static typed language.

In the XCode window, the _____ lists files, search results, and build settings.

Which control can the user add a small piece of data?

______ class will implement a mutex.

______ is Apple's computing infrastructure that consists of Mach, Unix services, and Mac OS X networking and filesystems.

Can an object be the delegate of multiple objects?

How wide is unichar on a 32bit machine?

Can you use malloc/free in a Cocoa application?

Fill the blank. NSButton : <> : NSObject

What is an observer?