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XML and Java From ScratchXML and Java From Scratch

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Moving On from Here

In this article, we looked at creating a factory that allows the user to specify a class at runtime, rather than locking the application into a particular implementation for an interface.

In this case, we looked at two different Ferret objects, which performed searches and reported on the results. Because the FerretFactory looks at a system property before deciding which class to use, anyone can write a Ferret implementation that can plug into the system, giving us different results from potentially different sources without making a single change to the main application.

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Other Collection and Use of Information


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Supplemental Privacy Statement for California Residents


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Sharing and Disclosure


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Links


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Changes to this Privacy Notice


We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020