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About Question enthuware.ocpjp.v7.2.1480 :
Posted: Tue Dec 02, 2014 11:07 am
by simsko
From the explanation of the answer on this question, it says "Since method inner() is a static method, only si and fai are accessible in class Inner. Note that ai and ii are not accessible. If method inner() were a non - static method, ii would have been accessible." However, I am able to compile and run the code below without any exceptions, where ai now IS accessible. Any thoughts on why? Is the answer wrong?
Code: Select all
public class TestClass {
static int si = 10; int ii = 20;
public static void inner() {
int ai = 30; //automatic variable
final int fai = 40; //automatic final variable
class Inner {
public Inner() { System.out.println(ai + " " + fai); }
}
new Inner();
}
public static void main(String[] args) { TestClass.inner(); }
}
Re: About Question enthuware.ocpjp.v7.2.1480 :
Posted: Tue Dec 02, 2014 8:48 pm
by admin
I checked your code. It doesn't compile. ai is not accessible.
HTH,
Paul.
Re: About Question enthuware.ocpjp.v7.2.1480 :
Posted: Wed Dec 03, 2014 10:51 am
by simsko
Hi Paul, thanks for answering. I found the problem being that I used jdk 1.8, not 1.7, so once I switched over it wouldn't compile any longer. Is there any specific reason to why this is allowed in java 8?
Re: About Question enthuware.ocpjp.v7.2.1480 :
Posted: Wed Dec 03, 2014 11:12 am
by admin
I haven't yet looked into Java 8 in detail but I would suggest you to check out the specification.
Re: About Question enthuware.ocpjp.v7.2.1480 :
Posted: Sat Jan 03, 2015 3:18 pm
by Svetopolk
"automatic variables" - is it really java terminology? I have never seen it before.
Re: About Question enthuware.ocpjp.v7.2.1480 :
Posted: Sat Jan 03, 2015 9:32 pm
by admin
Yes, it is not something that we cooked up
Re: About Question enthuware.ocpjp.v7.2.1480 :
Posted: Sat Apr 09, 2016 12:55 am
by Chen@ukr.net
The most hard part of question was that
All final automatic variables
Code: Select all
public class TestClass
{
static int si = 10; int ii = 20;
public static void inner()
{
int ai = 30; //automatic variable
final int fai = 40; //automatic final variable
class Inner
{
public Inner() { System.out.println(si+" "+fai); }
}
new Inner();
}
public static void main(String[] args) { TestClass.inner(); }
public static void OtherInnerMethod(){
final int otherFai = 40; // other automatic final variable
}
}
I add other static method and add other automatic final variable.
otherFai can`t be accessed by Inner class.
also i can add declaration of final automation variable after declaration of Inner class.
All instance variables - can be accessed if i create instance of outer class, but not
All automatic final variable can be accessed
How can i resolve such question?