Nsryjdtyk

I have Dual LinkedList (DLL) that I wanna separate in two DLLs, one with only odd numbers and the other with even. But I'm getting error when I try to ((Generic)%2==0)

Error Message: The method parseInt(E) is undefined for the type DLL<E>

public DLL parni() {

    DLL<E>niza = new DLL<E>();

    DLLNode<E>tmp = first;



    while(tmp.succ != null) {

        if((parseInt(tmp.element)) % 2 != 0) {

            niza.insertLast(tmp.element);

            delete(tmp);

        }

        tmp = tmp.succ;

    }

}

tmp.element is generic of type E

By the way, I tried adding the super class Number in the DLL class

class DLL<E extends Number>

Any advices?

If E extends java.lang.Number, you can try like this:

if(tmp.element.intValue() % 2 != 0)

Simple: you wrote your own class DLL<E extends Number>.

Now you wrote code that intends to call a method parseInt() belonging to your own class DLL.

The compiler is telling you:

The method parseInt(E) is undefined for the type DLL

that you didn't write that method yet.

In other words: if you intend to have a method with that name on your own class, then you have to add such a method to your class. So far, that E generic parameter isn't of any significance. Like any other method you intend to call on an object, that method must exist on the corresponding class.

Beyond that: do not use names such as "DLL". Don't abbreviate class names. Their names communicate to human readers, and DLL communicates nothing. Call it DualLinkedList for example.