Super Class Question?

[vinay jain]

Given the following code:
<pre>
class A {
protected int i = 10;
void methodA() { System.out.println("A: i =" + i); }
}
class B extends A {
protected int i = 20;
void methodA() { System.out.println("B: i =" + i); }
}
class C extends B {
void methodA() {
}
}
</pre>
Is there a way to access the member variable i of class A inside a method of class C?
Thanks
Vinay

[Harsha Jay]

class A {
protected int i = 10;
void methodA() { System.out.println("A: i =" + i); }
}
class B extends A {
protected int i = 20;
void methodA() { System.out.println("B: i =" + i); }
}
class C extends B {
void methodA() {
A a = new A();
a.i;
}
}

would that help.

[vinay jain]

Actually my question was more in the line can I access the A.i variable for the current instance, e.g. if I say
C c = new C();
then c contains 2 instances of i one from class A and one from class B, I want to access the i from class A and possibly modify it. I am not interested in creating a new instance of class A.
Hope I made my question more clear.

[Fei Ng]

hehehee... good one ,Harsha Jay.
I dont think you can access i. I am pretty sure!


correct me if i am wrong.

[Anonymous]

I think u r right FEI NG.
added to this u can not access any of the constructors of class A in class C.
~Kumar

[R K Singh]

agree with RK and Fei Ng

------------------
Regards
Ravish

[Rashmi Tambe]

i agree with all of u.
cause super.super.i would never work.
u could write a public method in b that will return super.i
and then invoke that method from instance of c.
Regards,
Rashmi

[Nicolas Brasseur]

I agree with rashmi, your code should look like that
class A {
protected int i = 10;
void methodA() { System.out.println("A: i =" + i); }
}
class B extends A {
protected int i = 20;
protected void setI(int i) {super.i=i;}
protected int getI(int i) {return super.i;}
void methodA() { System.out.println("B: i =" + i); }
}
class C extends B {
void methodA() {
setI(32);
System.out.println(getI);
}
}
Note : The method names in class B are ambiguous, somebody only seeing the methods names could think that it modifies the i contained in class B. You should maybe name it getAncestorI() and setAncestorI().
Regards
Nicolas

[Phil Sharp]

How about this method.
void methodA() {
A a = this;
System.out.println( a.i);
}
Have to create a new variable but are not actually creating a new instance.
Phil

[vinay jain]

Great Idea, Thanks Phil