calling variable using super super..

[Stephen Douglas]

Class A
{
int i;
}
class B extends A
{
int i;
}
class C extends B
{
int i;
}

I can use the variable i in class B using super.. as super.i
My question is how would i call variable i of class A in class C.

[Lil_Aziz1]

I believe you can't. You could make a get method.

[Zack]

I think the best option, like Aziz said, is to make a get method in B, that returns super.i... having said that, I'm curious as to why you would ever need this. Think about the actual fundamentals of OOP design; if C needs to access A, then it's not really a subclass of B.. it's more of a direct subclass from A.

[alacn]

package javaapplication36;

/**
 *
 * @author alacn
 */
public class Main {

     int  i;

public Main(){

        i = 5;
        System.out.println(i);
}
    public static void main(String[] args) {

        NewClass1 newclass1 = new NewClass1();
    }

}

package javaapplication36;

/**
 *
 * @author alacn
 */
public class NewClass extends Main {

    public NewClass(){

        super.i = 6;
        System.out.println(i);

    }

}

package javaapplication36;

/**
 *
 * @author alacn
 */
public class NewClass1 extends NewClass{

   NewClass1(){


      super.i = 7;
      System.out.println(i);
   }
}

output 5,6,7

[alacn]

I think the best option, like Aziz said, is to make a get method in B, that returns super.i... having said that, I'm curious as to why you would ever need this. Think about the actual fundamentals of OOP design; if C needs to access A, then it's not really a subclass of B.. it's more of a direct subclass from A.

what about if the majority of the variables class C inherited was found in class B and one or two was found in class A. Even though class C is accesing class A directly, surely it makes sense for it to access class A through class b to avoid duplicating all the variables declared in class B?

[Zack]

Yes and no. Class C might be an extension of A indirectly, through B, but if something that's part of A is accessed by C, there has to be an ambiguous step in the middle. I can try to explain this further when I'm back from vacation and have NetBeans at my disposal.

[alacn]

Yes and no. Class C might be an extension of A indirectly, through B, but if something that's part of A is accessed by C, there has to be an ambiguous step in the middle. I can try to explain this further when I'm back from vacation and have NetBeans at my disposal.

to be honest i do agree with you simply because i would rather access a variable via a method rather than directly for encapsulation purposes.

edit

however im new to the concept of encapsulation in java, so my reasons may be flawed

[Stephen Douglas]

Guys I was asked this question on my viva. I just wanna know if there is any way to "directly" access the variable in Class A through Class C without using "get" method or say without intervention of Class B!!