摘要：
Linkedlist 1.extneds AbstractSequentialList, implements List<E>, Deque<E>, Cloneable, java.io.Serializable ,element,peek 2.双向链表，header链表头，size大小 3.按下标 阅读全文
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摘要：
Linkedlist 1.extneds AbstractSequentialList, implements List<E>, Deque<E>, Cloneable, java.io.Serializable ,element,peek 2.双向链表，header链表头，size大小 3.按下标 阅读全文
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