1. OBJECTIVE C Kurt Ladendorf

2. General Knowledge  Super set of C  Smalltalk  Mainly used for iOS and other Apple development

3. Data types  int, double, float, char, BOOL (YES, NO)  id  long, long long, short  Signed/unsigned  Nil

4. Control structures  If  Switch  For  Do while  Try catch finally

5. Methods  Method template:  -(void) setScore : (int) score andTime : (int) time;  Method call  [objectName setScore: 12 andTime: 47];

6. Arrays  Immutable  Derived from NSArray  Mutable  Derived from NSMutableArray

7. Array Example

8. Classes  Base classes normally are children of NSObject  Instance methods  Denoted by a -  Class methods  Denoted by a +  @interface  @implementation  @public, @private, @protected

9. Inheritance  Single inheritance  Overriding a function  Use same function prototype and return type  @interface ChildClass : ParentClass

10. Instantiating Objects  Create a pointer and then call the object’s allocate and initialize methods  ClassName *foo = [[ClassName alloc] init];

11. Categories  Used to customize a class  Naming conflicts can arise!  Cannot add instance variables  Declaring a category  @interface ClassName (CategoryName)  Has an @implementation section

12. Point.h Point.m

13. Links!  http://www.techotopia.com/index.php/Objective- C_2.0_Essentials http://www.techotopia.com/index.php/Objective- C_2.0_Essentials  http://www.youtube.com/watch?v=Cfdon6Ocl_k http://www.youtube.com/watch?v=Cfdon6Ocl_k  http://gnustep.org/ http://gnustep.org/  https://developer.apple.com/ https://developer.apple.com/