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Fix typo in SOLID Liskov subheading

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For the Audio and Video classes to be children of the FileInterface
interface, and for the Liskov Substitution Principle to apply, they must
implement the FileInterface interface.
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Bobby Cahill
2019-04-29 15:01:12 -04:00
parent e8c464dcea
commit 5ed4f4da1d
1 changed files with 1 additions and 1 deletions
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_posts/06-03-01-Complex-Problem.md
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@@ -51,7 +51,7 @@ the parent class’ type definitions.” Or, in Robert C. Martin’s words, “S
types.”
For example, if we have a `FileInterface` interface which defines an `embed()` method, and we have `Audio` and `Video`
classes which both implement the `embed()` method, then we can expect that the usage of the `embed()` method will always
classes which both implement the `FileInterface` interface, then we can expect that the usage of the `embed()` method will always
do the thing that we intend. If we later create a `PDF` class or a `Gist` class which implement the `FileInterface`
interface, we will already know and understand what the `embed()` method will do. The largest benefit of this approach
is that we have the ability to build flexible and easily-configurable programs, because when we change one object of a