CODEWITHSUNDEEP
javagenericsoverriding
kuba
kuba

Reputation: 3

Java Overriding Error

I got the following error:

name clash: add(E) in AVLTree<E> and add(E) in BinaryTree have the same erasure, yet neither overrides the other

and I have no idea what the problem is.

public class BinaryTree<E extends Comparable<E>> implements Iterable<E> {
    public class AVLTree<E extends Comparable<E>> extends BinaryTree {

the add method in both classes is written as:

public void add(E toInsert) {

I hope I provided everything i needed. I'm stumped by this so any help would be appreciated, thanks.

Upvotes: 0

Views: 163

Answers (1)

Bohemian
Bohemian

Reputation: 425063

Looks like AVLTree is an inner class, so the parameterized type E is visible. Try this:

public class BinaryTree<E extends Comparable<E>> implements Iterable<E> {
    public class AVLTree extends BinaryTree<E> {

I must say it's a little weird having an inner class extend its containing class. Not implausible; I've just never seen it done before.

Upvotes: 1

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