Class Goals

• Learn how to use Xcode to develop Objective-C programs.
• Learn how to define primitive and reference variables.
• Understand the use of arithmetic operators.
• Know how to write conditional and looping statements.
• Learn how to write and call a function.
• Understand the object-oriented features of Objective-C.
• Learn how to create objects and methods.
• Understand important classes in the Foundation framework.
• Learn how to build a basic user interface using the Cocoa framework

    Class Outline
    
        Objective-C Overview
            The Xcode IDE
                Projects
                Hello World Application
            Objective-C
                Brief History
                Role in Mobile Device Applications
        Variables
            Numeric Variables
                Numeric Representations
                Integers
                Unsigned Integers
                Floating Point
                Constants
                Comments
            Nonnumeric Variables
                char
                boolean
            Variable Scope
        Arithmetic
            Arithmetic Operators
                Addition and Subtraction
                Multiplication, Division, and Modulus
                Shorthand Notation
            Typecasting
            Math Library Functions
                pow
                arc4random
        Conditional Logic and Looping
            Conditional Statements
                Basic if Statement
                if else Statement
                if else if Statement
                switch Statement
                The Ternary Operator
            Looping Statements
                while Statement
                dowhile Statement
                for Statement
        Functions
            Purpose of a Function
            Declaration
                Header
                Body
            Calling a Function
                Passing Parameters by Value
                Passing Parameters by Reference
            Functions vs. Methods
        Object-oriented Programming According to Objective-C
            Object-Oriented Programming (OOP)
            How Objective-C Implements OOP
            Encapsulation of Member Variables
                The class definition: Interface
                The Class Interface and @property
                Method vs. Function Syntax
                Static Variables and Class Methods
                The Class Implementation and @synthesize\
            Creating an Object from a Class
                Sending Messages to Objects
                The Role of Methods
            Visibility of Variables
            The Constants nil and NULL
            Reference Variables
            The * and & Operators
        Inheritance
            Purpose of Inheritance
            Implementing Inheritance
                The Root Class
                Creating and Processing the Subclass
            NSObject Class
            Memory Acquisition
                alloc
                init
            Method Override
            Where's Abstraction?
        Polymorphism
            The Purpose of Polymorphism
            Polymorphism in Objective-C
            Placing Objects in Collections
                Using NSMutableArray
            Runtime Identification of Objects
        Arrays
            The "Classic" C Array
                Defining the Array
                Processing the Array
            Foundation Framework Arrays
                NSArray
                NSMutableArray
        Foundation Framework
            The Foundation Framework
                Strings
                Date/Time
                Numbers
                Collections
            NSString
                Replacing char*
                Initialization
                NSString Methods
            NSNumber and NSNumberFormatter
                Replacing int, float, and more
                Initialization
                NSUInteger and NSInteger
                Formatting
            NSDate and NSDateFormatter
                NSDate
                NSDateFormatter
        Collections
            Arrays
                NSArray
                NSMutableArray
            Sets
                NSSet
                NSMutableSet
                How Duplicate Elements Are Detected: isEqual and hash
            Dictionaries
                NSDictionary
                NSMutableDictionary
        Memory Considerations
            Memory Management in Objective-C
                Manual Retain-Release
                Automatic Reference Counting
                Garbage Collection
            Strong and Weak
            Release and Retain
            Atomic and Nonatomic
            Automatic Reference Counting
        Cocoa Framework
            The Purpose of Cocoa
            User Interfaces
                What Is a User Interface?
                View Controllers
            Using Interface Builder to Create User Interfaces
                The XIB File
                IBAction and IBOutlet
                Drag and Drop with the Connections Inspector
            Creating a Simple Mobile Application
                Creating the Project
                Adding Properties and Synthesized Methods
                Building the User Interface
                Testing the Application