November 2021
Intermediate to advanced
416 pages
9h 26m
English
Content preview from Code That Fits in Your Head: Heuristics for Software Engineering
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5 Encapsulation
Have you ever bought something significant, like a house, a plot of land, a company, or a car?
If so, you probably signed a contract. A contract stipulates a set of rights and obligations on both sides. The seller promises to hand over the property. The buyer commits to pay the specified amount at a prescribed time. The seller may give some guarantees as to the state of the property. The buyer may promise not to hold the seller liable for damages after the transaction completes. And so on.
A contract introduces and formalises a level of trust that would otherwise not be present. Why should you trust a stranger? It’s too risky to do that, but the institution of a contract fills the gap.
That’s what encapsulation is about. How ...
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