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Protected Keywords - More Info about it

Nelly Verccety
Greenhorn

Joined: Feb 16, 2006
Posts: 8
I am analyzing java code using QJ-Pro and it comes with the next message:
Do not define protected members in classes that are not part of a named package. Anyone know what that means?

The line that is refering too is the following:
protected Panel getPanel() {return this;}

What do I need to know about protected keyword before I use it?
Nelly Verccety
Greenhorn

Joined: Feb 16, 2006
Posts: 8
Other thing, when is protected best used and where should be placed it so that its clear and will not break encapsulation?
Aum Tao
Ranch Hand

Joined: Feb 14, 2006
Posts: 210
Protected members are accessible in the same class or its subclasses.
If accessed from subclass , the instance should be of the class from where the protected member is being accessed or its subclass. The package may differ in this case.


SCJP 1.4 85%
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Protected Keywords - More Info about it