{"id":31193,"date":"2024-03-04T22:27:10","date_gmt":"2023-01-26T12:19:18","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/"},"modified":"2025-08-12T22:46:28","modified_gmt":"2025-08-12T14:46:28","slug":"%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/","title":{"rendered":"\u5173\u4e8eJava\u7684List\u5bf9\u8c61"},"content":{"rendered":"

\u8fd9\u7bc7\u6587\u7ae0\u7684\u76ee\u6807\u662f\u4ec0\u4e48\uff1f<\/p>\n

\u5728Java\u4e2d\uff0c\u6709\u5f88\u591a\u65b9\u4fbf\u4f7f\u7528\u7684\u96c6\u5408\u7c7b\u3002\u6211\u8ba4\u4e3aList\u548cSet\u662f\u5b83\u4eec\u7684\u4ee3\u8868\uff0c\u4f46\u662f\u6839\u636e\u6bcf\u4e2a\u5b9e\u73b0\u7684\u4e0d\u540c\uff0c\u5b83\u4eec\u5404\u81ea\u5177\u6709\u4e0d\u540c\u7684\u7279\u70b9\uff0c\u6bd4\u5982\u63d2\u5165\u901f\u5ea6\u5feb\u4f46\u8bbf\u95ee\u901f\u5ea6\u6162\u7b49\u7b49\u3002\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u6253\u7b97\u901a\u8fc7\u67e5\u770bJava\u7684\u5b9e\u73b0\u6765\u590d\u4e60\u4e00\u4e9b\u57fa\u7840\u77e5\u8bc6\u3002
\n\u8fd9\u6b21\u6211\u4eec\u5c06\u4e13\u6ce8\u4e8e\u96c6\u5408\u4e2d\u6700\u5e38\u7528\u7684List\u7cfb\u5217\uff0c\u5c24\u5176\u662fArrayList\u548cLinkedList\u3002
\n\u6e90\u4ee3\u7801\u5206\u522b\u5f15\u7528\u81ea
\nhttp:\/\/grepcode.com\/file\/repository.grepcode.com\/java\/root\/jdk\/openjdk\/8u40-b25\/java\/util\/ArrayList.java#ArrayList
\n\u4ee5\u53ca
\nhttp:\/\/grepcode.com\/file\/repository.grepcode.com\/java\/root\/jdk\/openjdk\/8u40-b25\/java\/util\/LinkedList.java#LinkedList.Node\u3002<\/p>\n

ArrayList\u548cLinkedList\u7684\u533a\u522b<\/p>\n

\u5728\u6570\u636e\u5904\u7406\u65b9\u9762\u6709\u6240\u5dee\u5f02\u3002
\nArrayList\u5728\u5185\u90e8\u5177\u6709\u4e00\u4e2a\u5bf9\u8c61\u6570\u7ec4\uff0c\u5143\u7d20\u88ab\u5b58\u50a8\u5728\u5176\u4e2d\u3002LinkedList\u5c06\u5143\u7d20\u5b58\u50a8\u5728\u8282\u70b9\u4e2d\uff0c\u5e76\u901a\u8fc7\u8fde\u63a5\u8fd9\u4e9b\u8282\u70b9\u6765\u5b9e\u73b0\u6709\u5e8f\u7684\u96c6\u5408\u3002<\/p>\n

ArrayList \u662f<\/p>\n

 transient<\/span> Object<\/span>[]<\/span> elementData<\/span>;<\/span> \/\/ non-private to simplify nested class access<\/span>\r\n<\/code><\/pre>\n
\u53ea\u9700\u8981\u4e00\u4e2a\u9009\u9879\uff1a\u5bf9\u4e8e\u8fd9\u4e2a\u6570\u7ec4\u6765\u8bf4\uff0c\u57fa\u672c\u6982\u5ff5\u5c31\u662f\u8be5\u6570\u7ec4\u7684\u5b9e\u4f53\u3002<\/p>\n
public<\/span> boolean<\/span> add<\/span>(<\/span>E<\/span> e<\/span>)<\/span> {<\/span>\r\n    ensureCapacityInternal<\/span>(<\/span>size<\/span> +<\/span> 1<\/span>);<\/span>  \/\/ Increments modCount!!<\/span>\r\n    elementData<\/span>[<\/span>size<\/span>++]<\/span> =<\/span> e<\/span>;<\/span>\r\n    return<\/span> true<\/span>;<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
public<\/span> E<\/span> get<\/span>(<\/span>int<\/span> index<\/span>)<\/span> {<\/span>\r\n    rangeCheck<\/span>(<\/span>index<\/span>);<\/span>\r\n\r\n    return<\/span> elementData<\/span>(<\/span>index<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u6211\u901a\u8fc7add\u548cget\u65b9\u6cd5\u6765\u64cd\u4f5c\uff0c\u7c7b\u4f3c\u8fd9\u6837\u7684\u65b9\u5f0f\u3002
\n\u5728add\u65b9\u6cd5\u4e2d\uff0c\u901a\u8fc7ensureCapacityInternal\u6765\u68c0\u67e5\u6570\u7ec4\u7684\u5bb9\u91cf\u5e76\u5b58\u50a8\u6570\u636e\uff0c\u5982\u679c\u8d85\u8fc7\u4e86\u6570\u7ec4\u7684\u6700\u5927\u5bb9\u91cf\uff0c\u5c31\u4f1a\u8c03\u7528grow\u65b9\u6cd5\u6765\u6269\u5c55\u6570\u7ec4\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6570\u7ec4\u7684\u5927\u5c0f\u4f1a\u6269\u5c55\u4e3a\u539f\u6765\u5927\u5c0f\u76841.5\u500d\u3002<\/p>\n
\u4e00\u65b9\uff0cLinkedList\u5728\u5185\u90e8\u7c7b\u4e2d\u5177\u6709\u5982\u4e0b\u7684\u4e1c\u897f\u3002<\/p>\n
private<\/span> static<\/span> class<\/span> Node<\/span><<\/span>E<\/span>><\/span> {<\/span>\r\n    E<\/span> item<\/span>;<\/span>\r\n    Node<\/span><<\/span>E<\/span>><\/span> next<\/span>;<\/span>\r\n    Node<\/span><<\/span>E<\/span>><\/span> prev<\/span>;<\/span>\r\n\r\n    Node<\/span>(<\/span>Node<\/span><<\/span>E<\/span>><\/span> prev<\/span>,<\/span> E<\/span> element<\/span>,<\/span> Node<\/span><<\/span>E<\/span>><\/span> next<\/span>)<\/span> {<\/span>\r\n        this<\/span>.<\/span>item<\/span> =<\/span> element<\/span>;<\/span>\r\n        this<\/span>.<\/span>next<\/span> =<\/span> next<\/span>;<\/span>\r\n        this<\/span>.<\/span>prev<\/span> =<\/span> prev<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u4e2a\u8282\u70b9\u4fdd\u7559\u7740\u6307\u5411\u4e0b\u4e00\u4e2a\u8282\u70b9\u548c\u524d\u4e00\u4e2a\u8282\u70b9\u7684\u5f15\u7528\u3002
\n\u800cLinkedList\u672c\u8eab\u4fdd\u7559\u7740Node\u7684first\u548clast\u3002
\n\u4ee5\u8fd9\u79cd\u65b9\u5f0f\uff0c\u4ece\u5934\u90e8\u6216\u5c3e\u90e8\u5f00\u59cb\uff0c\u4f9d\u6b21\u904d\u5386\u8282\u70b9\u5230\u8fbe\u76ee\u6807\u7d22\u5f15\u3002<\/p>\n
 Node<\/span><<\/span>E<\/span>><\/span> node<\/span>(<\/span>int<\/span> index<\/span>)<\/span> {<\/span>\r\n\/\/ assert isElementIndex(index);<\/span>\r\n\r\n    if<\/span> (<\/span>index<\/span> <<\/span> (<\/span>size<\/span> >><\/span> 1<\/span>))<\/span> {<\/span>\r\n        Node<\/span><<\/span>E<\/span>><\/span> x<\/span> =<\/span> first<\/span>;<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <<\/span> index<\/span>;<\/span> i<\/span>++)<\/span>\r\n            x<\/span> =<\/span> x<\/span>.<\/span>next<\/span>;<\/span>\r\n        return<\/span> x<\/span>;<\/span>\r\n    }<\/span> else<\/span> {<\/span>\r\n        Node<\/span><<\/span>E<\/span>><\/span> x<\/span> =<\/span> last<\/span>;<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span> =<\/span> size<\/span> -<\/span> 1<\/span>;<\/span> i<\/span> ><\/span> index<\/span>;<\/span> i<\/span>--)<\/span>\r\n            x<\/span> =<\/span> x<\/span>.<\/span>prev<\/span>;<\/span>\r\n        return<\/span> x<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u56e0\u4e3a\u5177\u6709\u8fd9\u6837\u7684\u7279\u6027\uff0c\u4e00\u822c\u6765\u8bf4\uff0cArrayList\u7684\u8bbf\u95ee\u65f6\u95f4\u8981\u6bd4LinkedList\u5feb\u5f97\u591a\u3002\u8fd9\u4e9b\u65b9\u9762\u660e\u663e\u662fArrayList\u4f5c\u4e3a\u6807\u8bb0\u63a5\u53e3\u5177\u6709RandomAccess\u7684\u660e\u786e\u8868\u793a\u3002
\n\u7136\u800c\uff0c\u5982\u679c\u5728\u5217\u8868\u7684\u4e2d\u95f4\u63d2\u5165\u5143\u7d20\uff0cArrayList\u4f1a\u4f7f\u7528System.arraycopy\u6765\u590d\u5236\u6570\u7ec4\u3002\u6240\u4ee5\u5728\u8fd9\u6837\u7684\u60c5\u51b5\u4e0b\uff0c\u5e94\u8be5\u4f7f\u7528LinkedList\u3002<\/p>\n
\u5bf9\u4e8e\u62d3\u5c55for\u5faa\u73af\u3001foreach\u7b49<\/p>\n
\u901a\u5e38\u6211\u4eec\u4f1a\u4f7f\u7528for\u7b49\u5faa\u73af\u8bed\u53e5\u6765\u904d\u5386List\u7684\u6240\u6709\u5143\u7d20\uff0c\u4f46\u662f\u5199\u6cd5\u786e\u5b9e\u6709\u5f88\u591a\u79cd\u3002\u6839\u636e\u6211\u521d\u6b65\u7684\u89c2\u5bdf\uff0c\u5927\u81f4\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u56db\u79cd\u65b9\u5f0f\u3002<\/p>\n
1: \u7528\u4e8e\u5faa\u73af\u7684”for”\u8bed\u53e5<\/p>\n
for<\/span>(<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>list<\/span>.<\/span>size<\/span>();<\/span> i<\/span>++)<\/span> {<\/span>\r\n    list<\/span>.<\/span>get<\/span>(<\/span>i<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
2\uff1a\u8fed\u4ee3\u5668<\/p>\n
Iterator<\/span> itr<\/span> =<\/span> list<\/span>.<\/span>iterator<\/span>();<\/span>\r\nwhile<\/span>(<\/span>itr<\/span>.<\/span>hasNext<\/span>()){<\/span>\r\n    itr<\/span>.<\/span>next<\/span>();<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
3: \u589e\u5f3a\u578bfor\u5faa\u73af<\/p>\n
for<\/span>(<\/span>Object<\/span> o<\/span> :<\/span> list<\/span>)<\/span> {<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
4: \u5bf9\u4e8e\u6bcf\u4e2a\u5143\u7d20\uff08\u4eceJava8\u5f00\u59cb\uff09<\/p>\n
list<\/span>.<\/span>forEach<\/span>(<\/span>o<\/span> -><\/span> {<\/span> });<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u4e00\u6b21\u6211\u4eec\u4e5f\u8c03\u67e5\u4e86\u8fd9\u56db\u4e2a\u5b9e\u73b0\u7684\u6027\u80fd\u3002
\n\u5bf9\u4e8e\u7b2c\u4e00\u4e2a\u5b9e\u73b0\uff0c\u6211\u8ba4\u4e3a\u73b0\u5728\u6ca1\u5fc5\u8981\u518d\u8bf4\u4e86\u3002
\n\u5173\u4e8e\u7b2c\u4e8c\u4e2a\u5b9e\u73b0\u7684\u8fed\u4ee3\u5668\uff0c\u5927\u4f53\u4e0a\u90fd\u662f\u62e5\u6709\u5b9e\u73b0Iterator\u63a5\u53e3\u7684\u5185\u90e8\u7c7b\uff0c\u5e76\u5728\u5176\u4e2d\u7ba1\u7406\u540d\u4e3acursor\u7684\u5f53\u524d\u4f4d\u7f6e\u3002\u7279\u522b\u662f\u5bf9\u4e8eLinkedList\u6765\u8bf4\uff0c\u5f53\u5c1d\u8bd5\u901a\u8fc7get\u65b9\u6cd5\u8bbf\u95ee\u5143\u7d20\u65f6\uff0c\u5b83\u4f1a\u4ece\u94fe\u8868\u7684\u5f00\u5934\uff08\u6216\u672b\u5c3e\uff09\u5f00\u59cb\u641c\u7d22\uff0c\u6240\u4ee5\u4f7f\u7528\u8fd9\u4e2a\u8fed\u4ee3\u5668\u8fdb\u884c\u8bbf\u95ee\u4f1a\u66f4\u5feb\u901f\u3002
\n\u81f3\u4e8e\u7b2c\u4e09\u4e2a\u6240\u8c13\u7684\u589e\u5f3afor\u5faa\u73af\uff0c\u6839\u636e\u8fd9\u7bc7\u6587\u7ae0\uff0c\u5b83\u4f3c\u4e4e\u662f\u8fd9\u6837\u5de5\u4f5c\u7684\u3002<\/p>\n
for<\/span>(<\/span>Object<\/span> o<\/span> :<\/span> list<\/span>)<\/span> {<\/span>\r\n    System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>o<\/span>.<\/span>toString<\/span>());<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u4ee5\u4e0b\u662f\u4e00\u79cd\u9009\u9879\u7684\u4e2d\u6587\u91ca\u4e49\uff1a
\n\u8fd9\u662f<\/p>\n
Object<\/span> o<\/span>;<\/span>\r\nfor<\/span>(<\/span>Iterator<\/span> it<\/span> =<\/span> list<\/span>.<\/span>iterator<\/span>();<\/span> it<\/span>.<\/span>hasNext<\/span>();<\/span> System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>o<\/span>.<\/span>toString<\/span>())<\/span> {<\/span>\r\n    o<\/span> =<\/span> it<\/span>.<\/span>next<\/span>();<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u4e2a\u7ed3\u679c\u5c31\u662f\uff0c\u5b83\u4f1a\u5728\u5185\u90e8\u8c03\u7528\u8fed\u4ee3\u5668\u3002\u901a\u8fc7\u4f7f\u7528\u589e\u5f3a\u7684for\u5faa\u73af\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u4f7f\u7528\u8fed\u4ee3\u5668\u7684\u8c03\u7528\u3002<\/p>\n
4\u7684forEach\u3002\u8fd9\u662f\u4eceJava 8\u5f00\u59cb\u6dfb\u52a0\u7684\u683c\u5f0f\u3002\u5b83\u63a5\u53d7\u4e00\u4e2aConsumer\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u9010\u4e2a\u5e94\u7528\u4e8e\u6bcf\u4e2a\u5143\u7d20\u3002
\n\u7136\u800c\uff0c\u8fd9\u4e2aforEach\u6700\u521d\u662f\u5728Iterable\u4e2d\u5b9e\u73b0\u7684\u3002<\/p>\n
default<\/span> void<\/span> forEach<\/span>(<\/span>Consumer<\/span><?<\/span> super<\/span> T<\/span>><\/span> action<\/span>)<\/span> {<\/span>\r\n    Objects<\/span>.<\/span>requireNonNull<\/span>(<\/span>action<\/span>);<\/span>\r\n    for<\/span> (<\/span>T<\/span> t<\/span> :<\/span> this<\/span>)<\/span> {<\/span>\r\n        action<\/span>.<\/span>accept<\/span>(<\/span>t<\/span>);<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u6362\u53e5\u8bdd\u8bf4\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u901a\u5e38\u4f7f\u7528\u589e\u5f3a\u578bfor\u5faa\u73af\u3002
\n\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u5728ArrayList\u4e2d\uff0cforEach\u65b9\u6cd5\u88ab\u8986\u5199\u4e3a\u4ee5\u4e0b\u7684\u5f62\u5f0f\u3002<\/p>\n
    @Override<\/span>\r\n    public<\/span> void<\/span> forEach<\/span>(<\/span>Consumer<\/span><?<\/span> super<\/span> E<\/span>><\/span> action<\/span>)<\/span> {<\/span>\r\n        Objects<\/span>.<\/span>requireNonNull<\/span>(<\/span>action<\/span>);<\/span>\r\n        final<\/span> int<\/span> expectedModCount<\/span> =<\/span> modCount<\/span>;<\/span>\r\n        @SuppressWarnings<\/span>(<\/span>\"unchecked\"<\/span>)<\/span>\r\n        final<\/span> E<\/span>[]<\/span> elementData<\/span> =<\/span> (<\/span>E<\/span>[])<\/span> this<\/span>.<\/span>elementData<\/span>;<\/span>\r\n        final<\/span> int<\/span> size<\/span> =<\/span> this<\/span>.<\/span>size<\/span>;<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> modCount<\/span> ==<\/span> expectedModCount<\/span> &&<\/span> i<\/span> <<\/span> size<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            action<\/span>.<\/span>accept<\/span>(<\/span>elementData<\/span>[<\/span>i<\/span>]);<\/span>\r\n        }<\/span>\r\n        if<\/span> (<\/span>modCount<\/span> !=<\/span> expectedModCount<\/span>)<\/span> {<\/span>\r\n            throw<\/span> new<\/span> ConcurrentModificationException<\/span>();<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n<\/code><\/pre>\n
\u9664\u4e86\u5e76\u5217\u8bbf\u95ee\u7684\u5f02\u5e38\u5904\u7406\u673a\u5236\uff0c\u53ef\u4ee5\u770b\u51fa\u6211\u4eec\u4f7f\u7528\u666e\u901a\u7684for\u5faa\u73af\uff081\uff09\u6765\u8bbf\u95ee\u5143\u7d20\u7684\u65b9\u6cd5\u3002ArrayList\u662fRandomAccess\uff0c\u6240\u4ee5\u76f8\u6bd4\u4f7f\u7528Iterator\u8bbf\u95ee\u5143\u7d20\uff0c\u76f4\u63a5\u4f7f\u7528get\u65b9\u6cd5\u7684\u8bbf\u95ee\u901f\u5ea6\u66f4\u5feb\uff0c\u6240\u4ee5\u5b9e\u73b0\u91c7\u7528\u4e86\u8fd9\u79cd\u65b9\u5f0f\u3002<\/p>\n
\u6700\u540e\uff0c\u4e3a\u4e86\u597d\u597d\u5229\u7528\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u6211\u4eec\u5bf9\u8fd9\u56db\u79cd\u65b9\u6cd5\u8fdb\u884c\u4e86\u6027\u80fd\u6d4b\u91cf\u3002\u6d4b\u8bd5\u5bf9\u8c61\u662fJava8\u7684LinkedList\u548cArrayList\u3002\u6d4b\u8bd5\u73af\u5883\u662fMacBook Air\uff0811\u82f1\u5bf8\uff091.7GHz Core i7 \/ 8GB RAM\u3002\u5bf9\u4e8e\u957f\u5ea6\u4e3a1000\u7684\u56fa\u5b9a\u5217\u8868\uff0c\u6211\u4eec\u5206\u522b\u91cd\u590d30,000\u6b21\u5bf9\u6240\u6709\u5143\u7d20\u7684\u8bbf\u95ee\uff0c\u5e76\u6d4b\u91cf\u5176\u901f\u5ea6\u3002<\/p>\n
\u7ed3\u679c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
\n
\n\n\n<\/th>\nLinkedList<\/th>\nArrayList<\/th>\n<\/tr>\n<\/thead>\n\n\nfor<\/td>\n15020ms<\/td>\n25ms<\/td>\n<\/tr>\n\nIterator<\/td>\n115ms<\/td>\n27ms<\/td>\n<\/tr>\n\n\u62e1\u5f35for<\/td>\n121ms<\/td>\n22ms<\/td>\n<\/tr>\n\nforEach<\/td>\n142ms<\/td>\n101ms<\/td>\n<\/tr>\n<\/tbody>\n
\u6211\u8ba4\u4e3a\u57fa\u672c\u4e0a\u4f1a\u8d8b\u4e8e\u9884\u671f\u503c\u3002\u6211\u5f88\u62c5\u5fc3Iterator\u548c\u589e\u5f3afor\u5faa\u73af\u7684\u503c\u4e0d\u4e00\u81f4\uff0c\u8fd9\u53ef\u80fd\u662f\u7531\u4e8e\u8bef\u5dee\u5f15\u8d77\u7684\u5417\uff1f\u5173\u4e8eforEach\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u5176\u89c6\u4e3a\u8c03\u7528Lambda\u6240\u5e26\u6765\u7684\u989d\u5916\u5f00\u9500\uff0c\u662f\u8fd9\u6837\u7406\u89e3\u5417\uff1f\u8fd9\u4e9b\u503c\u662f\u8fd9\u6837\u5f97\u5230\u7684\u3002<\/p>\n
\u9451\u65bc\u6536\u5230\u4e86\u8a55\u8ad6\uff0c\u6211\u6c7a\u5b9a\u9032\u884c\u8ffd\u52a0\u3002  y\u00fa  le , w\u01d2   .)<\/p>\n
\u786e\u5b9e\uff0c\u5982\u679c\u4f7f\u7528LinkedList\uff0c\u4f1a\u51fa\u73b0\u65e0\u6cd5\u4f7f\u7528\u7684\u60c5\u51b5\u3002\u4f46\u662f\u76f8\u6bd4ArrayList\uff0cLinkedList\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u5177\u6709\u4f18\u52bf\u3002\u8fd9\u79cd\u60c5\u51b5\u662f\u5728\u5217\u8868\u4e2d\u63d2\u5165\u5143\u7d20\u7684\u60c5\u51b5\u3002
\n\u56e0\u6b64\uff0c\u6211\u5728\u5217\u8868\u4e2d\u63d2\u5165\u5143\u7d20\uff0c\u5e76\u91cd\u590d\u8fd9\u4e2a\u52a8\u4f5c30000\u6b21\uff0c\u540c\u65f6\u6d4b\u91cf\u6027\u80fd\u3002
\n\u7ed3\u679c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
\n
\n\n\n<\/th>\nLinkedList<\/th>\nArrayList<\/th>\n<\/tr>\n<\/thead>\n\n\n<\/td>\n7ms<\/td>\n88ms<\/td>\n<\/tr>\n<\/tbody>\n
\u56e0\u6b64\uff0c\u7d50\u679c\u986f\u793aLinkedList\u660e\u986f\u6bd4\u5176\u4ed6\u66f4\u5feb\u3002<\/p>\n
\u6574\u7406<\/p>\n
\u6211\u5728Java\u4e2d\u8c03\u67e5\u4e86ArrayList\u548cLinkedList\u8fd9\u4e24\u4e2a\u6700\u5e38\u7528\u7684\u5217\u8868\u7684\u57fa\u672c\u7279\u6027\u3002\u6b64\u5916\uff0c\u6211\u8fd8\u8fdb\u884c\u4e86\u4e00\u4e9b\u6027\u80fd\u6d4b\u91cf\uff0c\u63a2\u7a76\u4e86\u8bf8\u5982for\u5faa\u73af\u548c\u589e\u5f3afor\u5faa\u73af\u7b49\u8fed\u4ee3\u65b9\u6cd5\u7684\u6027\u80fd\u7279\u6027\u3002<\/p>\n
\u5982\u679c\u6709\u4efb\u4f55\u6279\u8bc4\u6216\u8bc4\u8bba\uff0c\u8bf7\u60a8\u52a1\u5fc5\u544a\u8bc9\u6211\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8fd9\u7bc7\u6587\u7ae0\u7684\u76ee\u6807\u662f\u4ec0\u4e48\uff1f \u5728Java\u4e2d\uff0c\u6709\u5f88\u591a\u65b9\u4fbf\u4f7f\u7528\u7684\u96c6\u5408\u7c7b\u3002\u6211\u8ba4\u4e3aList\u548cSet\u662f\u5b83\u4eec\u7684\u4ee3\u8868\uff0c\u4f46\u662f\u6839\u636e\u6bcf\u4e2a […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31193","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\n\u5173\u4e8eJava\u7684List\u5bf9\u8c61 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u5173\u4e8eJava\u7684List\u5bf9\u8c61\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5173\u4e8ejava\u7684list\u5bf9\u8c61\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5173\u4e8eJava\u7684List\u5bf9\u8c61\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8e\u5173\u4e8eJava\u7684List\u5bf9\u8c61\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5173\u4e8ejava\u7684list\u5bf9\u8c61\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-01-26T12:19:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-12T14:46:28+00:00\" \/>\n<meta name=\"author\" content=\"\u6e05, \u626c\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6e05, \u626c\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/\",\"name\":\"\u5173\u4e8eJava\u7684List\u5bf9\u8c61 - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-01-26T12:19:18+00:00\",\"dateModified\":\"2025-08-12T14:46:28+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461\"},\"description\":\"\u5173\u4e8e\u5173\u4e8eJava\u7684List\u5bf9\u8c61\u7684\u6280\u672f\u6587\u7ae0\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u5173\u4e8eJava\u7684List\u5bf9\u8c61\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461\",\"name\":\"\u6e05, \u626c\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g\",\"caption\":\"\u6e05, \u626c\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/qingyang\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u5173\u4e8eJava\u7684List\u5bf9\u8c61 - Blog - Silicon Cloud","description":"\u5173\u4e8e\u5173\u4e8eJava\u7684List\u5bf9\u8c61\u7684\u6280\u672f\u6587\u7ae0","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u5173\u4e8ejava\u7684list\u5bf9\u8c61\/","og_locale":"zh_CN","og_type":"article","og_title":"\u5173\u4e8eJava\u7684List\u5bf9\u8c61","og_description":"\u5173\u4e8e\u5173\u4e8eJava\u7684List\u5bf9\u8c61\u7684\u6280\u672f\u6587\u7ae0","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/\u5173\u4e8ejava\u7684list\u5bf9\u8c61\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2023-01-26T12:19:18+00:00","article_modified_time":"2025-08-12T14:46:28+00:00","author":"\u6e05, \u626c","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u6e05, \u626c","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"1 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/","name":"\u5173\u4e8eJava\u7684List\u5bf9\u8c61 - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2023-01-26T12:19:18+00:00","dateModified":"2025-08-12T14:46:28+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461"},"description":"\u5173\u4e8e\u5173\u4e8eJava\u7684List\u5bf9\u8c61\u7684\u6280\u672f\u6587\u7ae0","breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"\u5173\u4e8eJava\u7684List\u5bf9\u8c61"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461","name":"\u6e05, \u626c","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g","caption":"\u6e05, \u626c"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/qingyang\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ejava%e7%9a%84list%e5%af%b9%e8%b1%a1\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/31193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=31193"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/31193\/revisions"}],"predecessor-version":[{"id":111887,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/31193\/revisions\/111887"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=31193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=31193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=31193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}