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In order to provide the security of data and methods within classes, Java limits access through "the four Ps" Ð private, package, protected and public. Correct design of your objects and correct specification of the right "P" ensures that you can make all necessary methods and data available to users of your class, while at the same time hiding your internal workings.
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Background information
This module is available under an Open Training Notes License for free download from http://www.training-notes.co.uk.
Topics covered in this module
Private, public, protected.
Inner classes. "finalize" method. Complete learning
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