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  1. A special name that indicates precisely where the program begins execution
  2. c++ language source file
  3. [instanceName release];
  4. accessor methods
  5. (@"The integer is %i", number)
  6. [ClassOrInstance method]; [receiver message]; [receiver message: input];
  7. ClassName newInstanceName;
  8. Define the Methods
  9. #import <Foundation/Foundation.h>
  10. Declare the Methods
  11. OBJECTIVE C source file
  12. affects the "state" of that object
  13. Class Method
  14. Fatal Error
  15. \n (backslash n)
  16. machine depenedent
  17. A language in which programs are defined by procedures and functions that operate on a set of data
  18. Dennis Ritchie @ Bell Labs
  19. newInstance = [ClassName alloc];
  20. object file (compiled file)
  21. header file
  22. C language source file
  23. warning
  24. Instance Method
  25. -(returnType) methodName: (argType) argName;
  26. ClassName *newInstance = [[ClassName alloc] init];
  27. A set of variables and associated methods. An object can be sent messages to cause one of it methods to be executed.
  28. perl source file
  29. The actions performed on the instance
  30. gcc -framework Foundation filename -o progname
  31. #import "myprog.h"
  32. OBJECTIVE C++ source file
  33. 0
  34. A unique occurence of class. A concrete representation of a class. Instances are objects, typically created by sending an "alloc" or "new" message to a class object
  35. gcc
  36. Holds a memory address "pointing" to the location of the object's data in memory
  37. indicates it is creating a reference (or pointer) to an object
  38. values without decimal places
  39. Data for an object is sotred in its instance variables and is accessed only by the object's methods. This maintains data integrity.
  40. NSLog(@"HelloWorld");
  41. A set of instance variable and methods that have access to those variables. After a class is defined, instances of the class (that is objects) can be created. A blueprint.
  42. newInstance = [newInstance init];
  43. @"Strings Rule" (The "@" symbol indicates an NSString object)
  44. ClassName *newInstance = [ClassName new];
  45. ./ (period backslash)