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protected field

Ankit Gareta
Ranch Hand

Joined: Mar 28, 2011
Posts: 67

Hi all,

I am little confused about the inheritance of the protected field.



now i inherited it in different package...


now again in different package


so protected variable is available to the hierarchy of the inheritance tree ...

Thanks in advanced

OCPJP 6 (91%)
Ankit Garg
Sheriff

Joined: Aug 03, 2008
Posts: 9293
    
  17

Are you sure the code you've shared here is the one you tried to run? It looks like you tried to create a package starting with the word "java" which is not allowed...


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Ankit Gareta
Ranch Hand

Joined: Mar 28, 2011
Posts: 67

sorry i made mistake first time.....

so, i changed the question
Alex Theedom
Ranch Hand

Joined: Jan 18, 2012
Posts: 48

Hello Ankit,

In the third code snippet I think you mean to import test2.* rather that test1.*. Anyway, the protected access modifier respects inheritance.

Note that in the following code snippets a compile time error occurs stating that The field Test1.val is not visible.

In the first snippet below the Test4 class is a "neighbour" of the Test3 class and in the second snippet the Test4 class is in a completely different package and therefore cannot access the protected variable.




Alex Theedom - Senior Java EE Developer (OCPJP/OCPJWCD)
 
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subject: protected field