Objective C

Intro

1. History
2. Language Comparison
3. Language Comparison (2)
4. Types / Typing
5. Classes (intro)
6. Messages
7. Selectors


8. Classes
1. Inheritance
2. Protocols
3. Categories
9. Forwarding
10. NSObject
11. Code Conventions

References

Types/Typing

• Superset of C
• id is a pointer to an object's data structure = dynamic typing
• nil = null object = id with value 0
• static typing possible using class names = compile time checking, only warnings
• ids with protocols = compile time checking, only warnings