February 2014
Beginner
1248 pages
62h 25m
English
Content preview from Java™ How To Program (Early Objects), Tenth Edition
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Answers to Self-Review Exercises
a) abstract.
b) concrete.
c) Polymorphism.
d) abstract.
e) downcasting.
a) False. An abstract class can include methods with implementations and abstract methods.
b) False. Trying to invoke a subclass-only method with a superclass variable is not allowed.
c) False. Only a concrete subclass must implement the method.
d) True.
a) default methods.
b) static.
c) functional interface.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.