Please implement MyMaxPriorityQueue below. Thanks

import net.datastructures.Entry;

public class MyMaxPriorityQueue {

@Override public int size() { // TODO Auto-generated method stub return 0; }

@Override public Entry insert(K key, V value) throws IllegalArgumentException { // TODO Auto-generated method stub return null; }

@Override public Entry max() { // TODO Auto-generated method stub return null; }

@Override public Entry removeMax() { // TODO Auto-generated method stub return null; }

}