在 传统的 栈中,或者说是在 Java的Stack 类中,还有一个查看头部元素的方法,也就是 peek, 但是 在 Queue 中已经实现了,所以代码中直接把 peek 归纳到了 Queue methods 下,并不矛盾哈。如果栈为空,返回null,反之返回头部元素。 /** * LinkedList 作为栈使用的实例代码 */ public class Test { public static...
All MethodsInstance MethodsConcrete Methods 构造方法LinkedList()//创建一个空LinkedList LinkedList(Coolection<? extends E>)//创建一个有内容的LinkedList,可以将别的LinkedList复制进来(不是引用) LinkedList增加和删除元素都是常数时间(假设位置已知) add(int index,E element)向索引位置插入,线性时间 add(E e)...
in any way except * through the list-iterator's own {@code remove} or {@code add} * methods, the list-iterator will throw a * {@code ConcurrentModificationException}. Thus
比如get、add这个方法的实现Thisclassisthe oppositeofthe AbstractListclassinthe sense that itimplementsthe"random access"methods(get(int index),set(int index,Eelement),add(int index,Eelement)andremove(int index))on topofthe list's list iterator,insteadofthe other way around.//这里就是讲一些我们...
❮ LinkedList Methods ExampleGet your own Java Server Find out the size of a list: importjava.util.LinkedList;publicclassMain{publicstaticvoidmain(String[]args){LinkedList<String>cars=newLinkedList<String>();cars.add("Volvo");cars.add("BMW");cars.add("Ford");cars.add("Mazda");System.out...
LinkedList实现了java.io.Serializable,可以被序列化 LinkedList是线程不安全的。 PS: LinkedList的数据结构 LinkedList的API LinkedList的APIboolean add(E object)void add(int location, E object)boolean addAll(Collection<? extends E> collection)boolean addAll(int location, Collection<? extends E> collection)...
LinkedList Methods For many cases, theArrayListis more efficient as it is common to need access to random items in the list, but theLinkedListprovides several methods to do certain operations more efficiently: MethodDescriptionTry it addFirst()Adds an item to the beginning of the listTry it ...
1、数据结构:在数据结构上,ArrayDeque 和 LinkedList 都实现了 Java Deque 双端队列接口。但 ArrayDeque 没有实现了 Java List 列表接口,所以不具备根据索引位置操作的行为; 2、线程安全:ArrayDeque 和 LinkedList 都不考虑线程同步,不保证线程安全; 3、底层实现:在底层实现上,ArrayDeque 是基于动态数组的,而 LinkedLi...
Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array. Methods inherited from class java.util.AbstractSequentialList ...
{@code listIterator} methods are fail-fast: if the list is * structurally modified at any time after the iterator is created, in * any way except through the Iterator's own {@code remove} or * {@code add} methods, the iterator will throw a {@link * ConcurrentModificationException}....