Generic ADT / Interface to implementation

Question

Hello, I'm new to java, hope anyone can help.
I have to implement a priority queue that should meet the following interface (note: please ignore the '>' after 'Comparable'):
public interface PriorityQueue<E extends Comparable<E>> {
    boolean offer(E o);
    E poll();
    E peek();
    boolean isEmpty();
}I'm having problems with the offer(E o) method... I wrote this:
public class ListPriorityQueue<E extends Comparable<E>> implements PriorityQueue {
public boolean offer(E o) { return false; }
}I thought it would work, but Eclipse gives me the following error on that line:
"Name clash: the method offer(E) of type ListPriorityQueue<E> has the same erasure has offer(E) of type PriorityQueue but does not override it"
It also gives me this error at class level:
"The type ListPriorityQueue<E> must implement the inherited abstract method PriorityQueue.offer(Comparable)"
What should I do?

Answer 1

"Name clash: the method offer(E) of type
ListPriorityQueue<E> has the same erasure has
offer(E) of type PriorityQueue but does not override
it"
implements PriorityQueue<E>>
It also gives me this error at class level:
"The type ListPriorityQueue<E> must implement
the inherited abstract method
PriorityQueue.offer(Comparable)"
What should I do?You have to either implement all the methods declared in the interface, or declare your class as abstract.