Sams Teach Yourself Objective-C in 24 Hours > Hour 15. Organizing Data with Collections > Q&A

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Sams Teach Yourself Objective-C in 24 Hours

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Introduction

Part I. Getting Started with Objective-C

Part II. Working with the Objective-C Basics

Hour 6. Exploring Messaging and a Testbed App

Hour 7. Declaring a Class in an Interface File

Hour 8. Declaring Instance Variables in an Interface File

Hour 9. Declaring Properties in an Interface File

Hour 10. Declaring Methods in an Interface File

Hour 11. Declaring Actions in an Interface File

Hour 12. Routing Messages with Selectors

Hour 13. Building on the Foundation

Hour 14. Defining a Class in an Implementation File

Hour 15. Organizing Data with Collections

Collecting Objects

Getting Familiar with Property Lists

Comparing the Collection Classes

Creating a Collection

Enumerating a Collection

Testing Membership in a Collection

Accessing an Object in a Collection

Summary

Q&A

Workshop

Hour 16. Managing Memory and Runtime Objects

Part III. Expanding and Extending Classes

Part IV. Beyond the Basics

Part V. Appendixes

Index

Q&A

Q. What is the relationship between dictionaries and property lists?

A. Property lists can contain dictionaries. Also, dictionaries are read and written as property lists.

Q. What do the collection classes do?

A. They store arrays, sets, and dictionaries. They also incorporate the basic functionality for accessing, enumerating, and managing membership for the collections.

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