- LinkedHashMap 继承关系
public class LinkedHashMap<K,V>
extends HashMap<K,V>
implements Map<K,V>
{
...
}
- 该链接列表定义了迭代顺序与插入顺序一致
static class Entry<K,V> extends HashMap.Node<K,V> {
Entry<K,V> before, after;
Entry(int hash, K key, V value, Node<K,V> next) {
super(hash, key, value, next);
}
}
