{"id":387,"date":"2007-10-21T00:00:00","date_gmt":"2007-10-21T00:00:00","guid":{"rendered":"http:\/\/www.strongd.net\/?p=387"},"modified":"2007-10-21T00:00:00","modified_gmt":"2007-10-21T00:00:00","slug":"Answers to Questions and Exercises: Object-Oriented Programming Concepts","status":"publish","type":"post","link":"https:\/\/www.strongd.net\/?p=387","title":{"rendered":"Answers to Questions and Exercises: Object-Oriented Programming Concepts"},"content":{"rendered":"

Answers to Questions and Exercises: Object-Oriented Programming Concepts<\/DIV>
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Answers to Questions<\/H3>
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  1. Real-world objects contain state<\/STRONG> and behavior<\/STRONG>.
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  2. A software object’s state is stored in fields<\/STRONG>.
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  3. A software object’s behavior is exposed through methods<\/STRONG>.
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  4. Hiding internal data from the outside world, and accessing it only through publicly exposed methods is known as data encapsulation<\/STRONG>.
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  5. A blueprint for a software object is called a class<\/STRONG>.
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  6. Common behavior can be defined in a superclass<\/STRONG> and inherited into a subclass<\/STRONG> using the extends<\/STRONG> keyword.
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  7. A collection of methods with no implementation is called an interface<\/STRONG>.
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  8. A namespace that organizes classes and interfaces by functionality is called a package<\/STRONG>.
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  9. The term API stands for Application Programming Interface<\/STRONG>. <\/LI><\/OL>
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    Answers to Exercises<\/H3>
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    1. Your answers will vary depending on the real-world objects that you are modeling.
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    2. Your answers will vary here as well, but the error message will specifically list the required methods that have not been implemented. <\/LI><\/OL><\/BLOCKQUOTE>
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      <\/DIV><\/p>\n","protected":false},"excerpt":{"rendered":"

      Answers to Questions and Exercises: Object-Oriented Programming Concepts Answers to Questions Real-world objects contain state and behavior. A software object’s state is stored in fields. A software object’s behavior is exposed through methods. Hiding internal data from the outside world, and accessing it only through publicly exposed methods is known as data encapsulation. A blueprint … Continue reading Answers to Questions and Exercises: Object-Oriented Programming Concepts<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-387","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=387"}],"version-history":[{"count":0,"href":"https:\/\/www.strongd.net\/index.php?rest_route=\/wp\/v2\/posts\/387\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.strongd.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}