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1Z0-829 OCP Java 17 book error

 
Greenhorn
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1Z0-829 OCP Java 17 Book, Chapter 7, page 396 (Casting interfaces section).
The last paragraph contains a sentence that states: "[..]For example, if the Wolf interface is marked final on line 3, then line 8 no longer compiles."

In the example, Wolf is actually a class that implements an interface, hence it should be referred to as a class. Not to mention that a final interface doesn't make sense.
 
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Gabi,
Confirmed. I've added it to the errata and credited you.
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