出口BinarySearchTree條目列出

Question

注意，BinarySearchTree類是net.datastructures 5.0

public static <K, V extends Comparable> List<Entry<K, V>> sortTree(BinarySearchTree<K, V> tree) 
    { 
     List<Entry<K, V>> entries = new ArrayList<Entry<K, V>>(tree.size()); 
     entries.addAll(tree.entries()); 

我怎麼解決這個問題？

Error: The method addAll(Collection<? extends Entry<K,V>>) in the type List<Entry<K,V>> is not applicable for the arguments (Iterable<Entry<K,V>>) 

Answer 1

for(Entry<K,V> entry : tree.entries()) { entries.add(entry);}