Lesson 24. Mutable and immutable objects
After reading lesson 24, you’ll be able to
- Understand what an immutable object is
- Understand what a mutable object is
- Understand how objects are stored in computer memory
Consider the following scenario. You buy a house that’s just the right size for you; it’s big enough for one person to live in. Then you get married, and there’s no space for your spouse. You have two choices: build an addition to the house, or tear the whole house down and build a new larger house to hold two people. Building an addition makes more sense than demolishing a perfectly good house and making an exact copy of it just to make an addition. Now, you have a kid and decide you need more room. Again, do you build an addition ...
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