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Definition of Access specifiers
Access specifiers are keywords that mention the accessibility of contents of a class, somewhere outside of the class. There are four types of access specifiers are available.
Public
Private
Protected
Default
Here public, private, and protected are keywords. When none of these is used, then the access specifier of that particular statement or block would be the default (there is no keyword for the default access specification).
Public:
The keyword specifies that accessibility is global.
Private:
The keyword specifies that the accessibility is confined to that class.
Protected:
The behavior of this access specifier is also similar to the default but with a small difference. The default would be acting as private outside the packages. The same is the case with protection. But the difference is protected would behave as public with respect to subclass objects even outside the packages.
Default:
Default is similar to the public as long as the control is in the same package else default acts as private.
Difference between public and default access specifiers:
Default would be similar to the public as long as the .class files are in the same package (i.e. same path) outside the packages the default accessibility would be similar to private.
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