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Chapter 9. Objects with Data

Using the simple syntax introduced in Chapter 8, you have class methods, (multiple) inheritance, overriding, and extending. You've been able to factor out common code and provide a way to reuse implementations with variations. This is at the core of what objects provide, but objects also provide instance data, which we haven't even begun to cover.



    		Chapter 1. Introduction
    		Chapter 2. Building Larger Programs
    		Chapter 3. Introduction to References
    		Chapter 4. References and Scoping
    		Chapter 5. Manipulating Complex Data Structures
    		Chapter 6. Subroutine References
    		Chapter 7. Practical Reference Tricks
    		Chapter 8. Introduction to Objects
    		Chapter 9. Objects with Data
    		9.1 A Horse Is a Horse, of Course of Courseor Is It?
    		9.2 Invoking an Instance Method
    		9.3 Accessing the Instance Data
    		9.4 How to Build a Horse
    		9.5 Inheriting the Constructor
    		9.6 Making a Method Work with Either Classes or Instances
    		9.7 Adding Parameters to a Method
    		9.8 More Interesting Instances
    		9.9 A Horse of a Different Color
    		9.10 Getting Your Deposit Back
    		9.11 Don't Look Inside the Box
    		9.12 Faster Getters and Setters
    		9.13 Getters That Double as Setters
    		9.14 Restricting a Method to Class-Only or Instance-Only
    		9.15 Exercise
    		Chapter 10. Object Destruction
    		Chapter 11. Some Advanced Object Topics
    		Chapter 12. Using Modules
    		Chapter 13. Writing a Distribution
    		Chapter 14. Essential Testing
    		Chapter 15. Contributing to CPAN
    		Appendix A. Answers to Exercises