{"id":31671,"date":"2023-07-20T22:37:54","date_gmt":"2023-02-05T08:13:03","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/java%e7%9a%84%e6%b3%9b%e5%9e%8b%e4%b9%8b%e8%b0%88\/"},"modified":"2024-04-30T14:32:53","modified_gmt":"2024-04-30T06:32:53","slug":"java%e7%9a%84%e6%b3%9b%e5%9e%8b%e4%b9%8b%e8%b0%88","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java%e7%9a%84%e6%b3%9b%e5%9e%8b%e4%b9%8b%e8%b0%88\/","title":{"rendered":"Java\u7684\u6cdb\u578b\u4e4b\u8c08"},"content":{"rendered":"

\u9996\u5148<\/h1>\n

\u9274\u4e8e\u4e4b\u524d\u5173\u4e8eJava\u7684\u9759\u6001\u4e3b\u9898\u7684\u5185\u5bb9\uff0c\u6211\u6253\u7b97\u7ee7\u7eed\u4e13\u6ce8\u5730\u8fdb\u884cJava\u7684\u5b66\u4e60\u548c\u5b9e\u8df5\u3002<\/p>\n

\u76ee\u6807<\/h1>\n

\u65e0\u8bba\u662f\u6cdb\u578b\u8fd8\u662f\u975e\u6cdb\u578b\uff0c\u6682\u4e14\u4e0d\u8bba\u3002\u6211\u4eec\u8bd5\u7740\u5728Java\u4e2d\u5e7f\u6cdb\u6d89\u730e\uff0c\u9644\u5e26\u4e00\u4e9b\u7b80\u5355\u7684\u4f8b\u5b50\u548c\u5a31\u4e50\u3002<\/p>\n

\u6cdb\u578b\u548c\u7c7b\u578b\u5b89\u5168<\/h1>\n

\u4ecejdk 1.5\u5f00\u59cb\u5f15\u5165\u3002<\/p>\n

\u5728\u6211\u6b63\u5728\u5199\u8fd9\u7bc7\u6587\u7ae0\u7684\u65f6\u5019\uff0c\u521a\u597d\u6536\u5230\u4e86\u6765\u81eaJava\u7684\u63d0\u793a\uff0c\u8981\u6c42\u66f4\u65b0\u5230jdk 9.0.4\uff0c\u5e76\u4e14\u4e5f\u542c\u8bf4\u5373\u5c06\u53d1\u5e03java10\uff0c\u6240\u4ee5\u6211\u51b3\u5b9a\u5347\u7ea7\u5230jdk 1.5…\u3002<\/p>\n

\u6b64\u5916\uff0c\u5982\u679c\u518d\u5f80\u524d\u8ffd\u6eaf\u7684\u8bdd\uff0c<\/p>\n

List<\/span> lst<\/span> =<\/span> new<\/span> ArrayList<\/span>();<\/span>\r\nMap<\/span> map<\/span> =<\/span> new<\/span> HashMap<\/span>();<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u79cd\u539f\u59cb\u7c7b\u578b\u7684\u5f62\u5f0f\u636e\u8bf4\u662f\u7528\u8fd9\u6837\u7684\u65b9\u5f0f\u63cf\u8ff0\u7684\u3002\u867d\u7136\u73b0\u5728\u4ecd\u80fd\u8fd0\u884c\uff0c\u4f46\u4e0d\u5efa\u8bae\u4f7f\u7528\u3002<\/p>\n
\u4efb\u4f55\u7269\u4f53\u90fd\u80fd\u591f\u653e\u8fdb\u53bb\uff0c\u4e00\u65e6\u653e\u8fdb\u53bb\u5c31\u65e0\u6cd5\u53d6\u51fa\u6765\u4e86\u3002<\/p>\n
lst<\/span>.<\/span>add<\/span>(<\/span>\"sample\"<\/span>);<\/span>\r\nlst<\/span>.<\/span>add<\/span>(<\/span>11111<\/span>);<\/span>\r\n\r\n\/\/ for-each \u30821.5\u4ee5\u964d<\/span>\r\n\/\/ \u30a4\u30c6\u30ec\u30fc\u30bf\u3082\u307e\u3060 raw \u3067\u3059<\/span>\r\nIterator<\/span> it<\/span> =<\/span> lst<\/span>.<\/span>iterator<\/span>();<\/span>\r\nwhile<\/span> (<\/span>it<\/span>.<\/span>hasNext<\/span>())<\/span> {<\/span>\r\n  Object<\/span> o<\/span> =<\/span> it<\/span>.<\/span>next<\/span>();<\/span>\r\n  System<\/span>.<\/span>out<\/span>.<\/span>print<\/span>(<\/span>o<\/span>);<\/span> \/\/ sample1111<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u8fd9\u6837\u505a\uff0c\u65e0\u6cd5\u4fdd\u8bc1\u7c7b\u578b\u5b89\u5168\u3002
\n\u5728\u63d0\u53d6\u96c6\u5408\u4e2d\u7684\u5143\u7d20\u65f6\uff0c\u5fc5\u987b\u4ed4\u7ec6\u8fdb\u884c\u5f3a\u5236\u8f6c\u6362\u3002<\/p>\n
lst<\/span>.<\/span>add<\/span>(<\/span>\"sample\"<\/span>);<\/span>\r\nlst<\/span>.<\/span>add<\/span>(<\/span>11111<\/span>);<\/span>\r\n\r\nIterator<\/span> it<\/span> =<\/span> lst<\/span>.<\/span>iterator<\/span>();<\/span>\r\nwhile<\/span> (<\/span>it<\/span>.<\/span>hasNext<\/span>())<\/span> {<\/span>\r\n  Object<\/span> o<\/span> =<\/span> it<\/span>.<\/span>next<\/span>();<\/span>\r\n  System<\/span>.<\/span>out<\/span>.<\/span>print<\/span>((<\/span>String<\/span>)<\/span> o<\/span>);<\/span> \/\/ sample \u3068 ClassCastException<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u65e0\u8bba\u662f\u56e0\u4e3a\u758f\u5ffd\u8fd8\u662f\u5176\u4ed6\u539f\u56e0\uff0c\u5982\u679c\u7c7b\u578b\u88ab\u9519\u8bef\u5730\u8bbe\u5b9a\uff0c\u7a0b\u5e8f\u53ea\u6709\u5728\u8fd0\u884c\u65f6\u624d\u4f1a\u610f\u8bc6\u5230\u5f02\u5e38\uff0c\u56e0\u6b64\u5b58\u5728\u7740\u5728\u610f\u60f3\u4e0d\u5230\u7684\u65f6\u95f4\u505c\u6b62\u7a0b\u5e8f\u7684\u98ce\u9669\u3002<\/p>\n
\u5173\u4e8e\u5f02\u5e38<\/h2>\n
\u5728\u53d1\u751f\u7c7b\u578b\u8f6c\u6362\u5931\u8d25\u65f6\u629b\u51fa\u7684ClassCastException\u662f\u7ee7\u627f\u81eaRuntimeException\u7684\u5f02\u5e38\u7c7b\u3002
\nRuntimeException\u88ab\u89c6\u4e3a\u8fd0\u884c\u65f6\u5f02\u5e38\uff0c\u5f02\u5e38\u5904\u7406\u7531\u4f7f\u7528\u8005\u51b3\u5b9a\u3002
\n\u6362\u53e5\u8bdd\u8bf4\uff0c\u9519\u8bef\u88ab\u53d1\u73b0\u7684\u65f6\u673a\u4e0d\u662f\u5728\u7f16\u8bd1\u65f6\uff0c\u800c\u662f\u5728\u4e4b\u540e\u7684\u8fd0\u884c\u65f6\u3002<\/p>\n
\u6cdb\u578b\u5b9e\u53c2<\/h1>\n
\u4eceJDK 1.5\u5f00\u59cb\uff0cCollection\u63a5\u53e3\u8fdb\u5316\u4e3aCollection\uff0c\u53ea\u80fd\u5b58\u50a8\u4e00\u79cd\u7c7b\u578b\u7684\u5143\u7d20\u3002
\n\u6b63\u5982Collection\u7684Javadoc\u6240\u8ff0\uff0cE\u4ee3\u8868”\u8be5\u96c6\u5408\u7684\u5143\u7d20\u7c7b\u578b”\u3002<\/p>\n
\u7ee7\u627f\u4e86 Collection \u7684 List \u4e5f\u662f\u4e00\u6837\u7684\uff0c\u53d8\u6210\u4e86 List\u3002\u867d\u7136\u8fd8\u4e0d\u786e\u5b9a\u4f1a\u653e\u5165\u4ec0\u4e48\uff0c\u4f46\u4fdd\u8bc1\u53ea\u80fd\u653e\u5165\u4e00\u79cd\u7c7b\u578b\uff0c\u5c31\u50cf\u6682\u65f6\u5148\u653e\u8fdb\u53bb\u4e00\u6837\u3002E \u8868\u793a\u7684\u5e94\u8be5\u5c31\u662f Element\u3002<\/p>\n
\u6240\u4ee5\uff0c\u5b9e\u9645\u4e0a\u5728\u521b\u5efa\u5217\u8868\u5b9e\u4f8b\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528List lst = new ArrayList<>();\u4e4b\u7c7b\u7684\u4ee3\u7801…
\n\u7ec8\u4e8e\u586b\u5145\u4e86\u6cdb\u578b\u53c2\u6570\u7684\u4f4d\u7f6e\uff0c\u5728\u8fd9\u91ccInteger\u5c06\u6210\u4e3a\u8be5\u5217\u8868\u7684\u5b9e\u9645\u7c7b\u578b\u53c2\u6570\u3002<\/p>\n
jdk7\u53ca\u4ee5\u540e\u7684\u83f1\u5f62\u64cd\u4f5c\u7b26<\/p>\n
List lst = new ArrayList();
\nList lst = new ArrayList<>(); \/\/ \u53ef\u4ee5\u7701\u7565<\/p><\/blockquote>\n
\u5c06\u8fd9\u4e9b\u6cdb\u578b\u63a5\u53e3\u4ee5\u53ca\u5b83\u4eec\u7684\u5b9e\u73b0\u7c7b\u79f0\u4e3a\u6cdb\u578b\u7c7b\u578b\u3002<\/p>\n
\u53e6\u5916\uff0c\u5728Java\u4e2d\uff0c\u6cdb\u578b\u53ef\u4ee5\u5bf9\u7c7b\u3001\u63a5\u53e3\u3001\u65b9\u6cd5\u548c\u6784\u9020\u51fd\u6570\u8fdb\u884c\u58f0\u660e\u3002<\/p>\n
\u539f\u59cb\u7c7b\u578b\u548c\u7684\u533a\u522b\u4f8b\u5982\uff0c\u5c31\u50cf\u539f\u59cb\u5217\u8868\u4e00\u6837\uff0c\u5217\u8868\u53ef\u4ee5\u5b58\u50a8\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\u3002<\/object><\/p>\n
 List<\/span><<\/span>Object<\/span>><\/span> objList<\/span> =<\/span> new<\/span> ArrayList<\/span><>();<\/span>\r\n objList<\/span>.<\/span>add<\/span>(<\/span>\"a\"<\/span>);<\/span>\r\n objList<\/span>.<\/span>add<\/span>(<\/span>1<\/span>);<\/span>\r\n objList<\/span>.<\/span>add<\/span>(<\/span>new<\/span> Sample<\/span>());<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u53ea\u662f\u5230\u8fd9\u4e2a\u7a0b\u5ea6\u7684\u8bdd\uff0c\u4f3c\u4e4e\u6ca1\u6709\u592a\u5927\u7684\u5dee\u522b\u3002<\/p>\n
\u9996\u5148\uff0c\u539f\u59cb\u7c7b\u578b\u7684\u5217\u8868<\/p>\n
  private<\/span> static<\/span> List<\/span> rawList<\/span>()<\/span> {<\/span>\r\n    return<\/span> new<\/span> ArrayList<\/span>();<\/span>\r\n  }<\/span>\r\n\r\n  private<\/span> static<\/span> void<\/span> printList<\/span>(<\/span>List<\/span> rawList<\/span>)<\/span> {<\/span>\r\n    rawList<\/span>.<\/span>forEach<\/span>(<\/span>System<\/span>.<\/span>out<\/span>::<\/span>println<\/span>);<\/span>\r\n  }<\/span>\r\n  public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>...<\/span> args<\/span>)<\/span> {<\/span>\r\n    printList<\/span>(<\/span>rawList<\/span>());<\/span> \/\/ \u901a\u308b<\/span>\r\n  }<\/span> \r\n<\/code><\/pre>\n
\u4ece\u7f16\u8bd1\u5668\u90a3\u91cc\u6ca1\u6709\u6536\u5230\u4efb\u4f55\u63d0\u793a\u3002
\n\u6362\u53e5\u8bdd\u8bf4\uff0c\u7531\u4e8e\u7c7b\u578b\u9519\u8bef\u51fa\u73b0\u5728\u8fd0\u884c\u65f6\u624d\u4f1a\u88ab\u6ce8\u610f\u5230\uff0c\u6240\u4ee5\u4e0d\u80fd\u79f0\u4e4b\u4e3a\u7c7b\u578b\u5b89\u5168\u3002<\/p>\n
\u5728\u4e2d\u6587\u4e2d\uff0c\u5219\u4e3a “\u53cd\u9762\uff0cList\u662f”<\/object><\/p>\n
List<\/span><<\/span>Object<\/span>><\/span> objList<\/span> =<\/span> new<\/span> ArrayList<\/span><<\/span>String<\/span>>();<\/span> \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/span>\r\n<\/code><\/pre>\n
\u6216\u8005<\/p>\n
  private<\/span> static<\/span> List<\/span><<\/span>String<\/span>><\/span> strList<\/span>()<\/span> {<\/span>\r\n    return<\/span> new<\/span> ArrayList<\/span><<\/span>String<\/span>>();<\/span>\r\n  }<\/span>\r\n\r\n  private<\/span> static<\/span> void<\/span> printObjList<\/span>(<\/span>List<\/span><<\/span>Object<\/span>><\/span> objList<\/span>)<\/span> {<\/span>\r\n    objList<\/span>.<\/span>forEach<\/span>(<\/span>System<\/span>.<\/span>out<\/span>::<\/span>println<\/span>);<\/span>\r\n  }<\/span>\r\n\r\n  public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>...<\/span> args<\/span>)<\/span> {<\/span>\r\n    printObjList<\/span>(<\/span>strList<\/span>());<\/span> \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/span>\r\n  }<\/span>\r\n<\/code><\/pre>\n
\u5176\u5b9e\u4e5f\u662f\u8fd9\u6837\u7684<\/p>\n
  private<\/span> static<\/span> List<\/span><<\/span>Object<\/span>><\/span> objList<\/span>()<\/span> {<\/span>\r\n    return<\/span> new<\/span> ArrayList<\/span><<\/span>Object<\/span>>();<\/span>\r\n  }<\/span>\r\n\r\n  private<\/span> static<\/span> void<\/span> printStrList<\/span>(<\/span>List<\/span><<\/span>String<\/span>><\/span> strList<\/span>)<\/span> {<\/span>\r\n    strList<\/span>.<\/span>forEach<\/span>(<\/span>System<\/span>.<\/span>out<\/span>::<\/span>println<\/span>);<\/span>\r\n  }<\/span>\r\n\r\n  public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>...<\/span> args<\/span>)<\/span> {<\/span>\r\n    printStrList<\/span>(<\/span>objList<\/span>());<\/span> \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/span>\r\n  }<\/span>\r\n<\/code><\/pre>\n
\u505a\u4e0d\u5230\u3002<\/p>\n
\u7406\u7531\u662fList\u662fList\u7684\u5b50\u7c7b\u578b\uff0c\u4f46\u4e0d\u662fList\u7684\u5b50\u7c7b\u578b\u3002\u4e5f\u5c31\u662f\u8bf4\uff0cList\u548cList\u4e4b\u95f4\u6ca1\u6709\u7ee7\u627f\u5173\u7cfb\u3002<\/object><\/string><\/object><\/string><\/p>\n
\u7531\u4e8e\u8fd9\u6837\u7684\u60c5\u51b5\uff0c\u6211\u4eec\u5c06\u6cdb\u578b\u79f0\u4e3a”\u4e0d\u53d8”(invariant)\u3002<\/p>\n
\u5982\u679c\u8981\u4fee\u6539\u4e4b\u524d\u7684\u4ee3\u7801\u7684\u8bdd\uff0c\u53ea\u9700\u8fdb\u884c\u4e00\u5904\u4fee\u6b63\u3002<\/p>\n
List<\/span><<\/span>Object<\/span>><\/span> objList<\/span> =<\/span> new<\/span> ArrayList<\/span><<\/span>String<\/span>>();<\/span> \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/span>\r\nList<\/span><?><\/span> someTypeList<\/span> =<\/span> new<\/span> ArrayList<\/span><<\/span>String<\/span>>();<\/span>\r\n<\/code><\/pre>\n
\u6211\u8ba4\u4e3a\u4f1a\u53d8\u6210\u8fd9\u6837\u7684\u5f62\u5f0f\u3002\u5173\u4e8e<?>\uff0c\u6211\u60f3\u5728\u540e\u9762\u7684\u901a\u914d\u7b26\u90e8\u5206\u6574\u7406\u3002<\/p>\n
\u6cdb\u578b\u4e0e\u6570\u7ec4\u7684\u533a\u522b<\/h1>\n
\u6570\u7ec4\u662f\u534f\u53d8\u7684\u3002<\/h2>\n
\u6cdb\u578b\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u8fd9\u4e2a\u8bdd\u9898\u5c06\u7ee7\u7eed\u8ba8\u8bba\u3002
\n\u5173\u4e8e\u534f\u53d8\u6027\u8d28\uff0c\u6211\u4eec\u4e4b\u524d\u8bb2\u8fc7”\u7ee7\u627f\u5173\u7cfb”\uff0c\u4f46\u5728\u6570\u7ec4\u4e2d\u53ef\u4ee5\u8fd9\u6837\u505a\u3002<\/p>\n
  private<\/span> static<\/span> void<\/span> printAry<\/span>(<\/span>Object<\/span>[]<\/span> objAry<\/span>)<\/span> {<\/span>\r\n    Arrays<\/span>.<\/span>stream<\/span>(<\/span>objAry<\/span>).<\/span>forEach<\/span>(<\/span>System<\/span>.<\/span>out<\/span>::<\/span>println<\/span>);<\/span>\r\n  }<\/span>\r\n\r\n  private<\/span> static<\/span> String<\/span>[]<\/span> strAry<\/span>(<\/span>String<\/span>[]<\/span> strAry<\/span>)<\/span> {<\/span>\r\n    return<\/span> strAry<\/span>;<\/span>\r\n  }<\/span>\r\n\r\n  printAry<\/span>(<\/span>strAry<\/span>(<\/span>new<\/span> String<\/span>[]{<\/span>\"a\"<\/span>,<\/span> \"b\"<\/span>,<\/span> \"c\"<\/span>}));<\/span>\r\n<\/code><\/pre>\n
\u5982\u679cString\u662fObject\u7684\u5b50\u7c7b\uff08\u5373String\u4e0eObject\u4e4b\u95f4\u5b58\u5728\u7ee7\u627f\u5173\u7cfb\uff09\uff0c\u90a3\u4e48String[]\u4e5f\u662fObject[]\u7684\u5b50\u7c7b\uff08\u5373String[]\u4e0eObject[]\u4e4b\u95f4\u4e5f\u5b58\u5728\u7ee7\u627f\u5173\u7cfb\uff09\u3002<\/p>\n
\u603b\u7ed3\u8d77\u6765<\/p>\n
Object<\/span>[]<\/span> objAry<\/span> =<\/span> new<\/span> String<\/span>[<\/span>10<\/span>];<\/span>\r\nobjAry<\/span>[<\/span>0<\/span>]<\/span> =<\/span> 1<\/span>;<\/span> \r\n<\/code><\/pre>\n
\u5c3d\u7ba1\u5728\u7f16\u8bd1\u65f6\u65e0\u6cd5\u5bdf\u89c9\u5b58\u50a8\u4e86\u975e\u6cd5\u7c7b\u578b\u3002<\/p>\n
\u6cdb\u578b\u64e6\u9664\uff08\u7c7b\u578b\u64e6\u9664\uff09<\/h2>\n
    \n\u5177\u73fe\u5316
    \n\u914d\u5217\u306f\u3001\u5b9f\u884c\u6642\u306b\u306f\u3082\u3046\u8981\u7d20\u306e\u578b\u304c\u308f\u304b\u3063\u3066\u3044\u3066\u3001\u305d\u306e\u578b\u306e\u307e\u307e\u5b9f\u884c\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059.\u5177\u73fe\u5316\u4e0d\u53ef\u80fd
    \n\u4e00\u65b9\u3001\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u306f\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u4e00\u5ea6\u30c1\u30a7\u30c3\u30af\u3057\u7d42\u3048\u305f\u3089\u3001\u305d\u306e\u5f8c\u306f\u30a4\u30ec\u30a4\u30b8\u30e3\uff08\u5b9f\u884c\u6642\u306b\u306f\u8981\u7d20\u306e\u578b\u60c5\u5831\u304c\u6d88\u3057\u3066\u3042\u308b)\u3067\u5b9f\u88c5\u3092\u884c\u3044\u307e\u3059. \u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u6642\u70b9\u3068\u6bd4\u3079\u3066\u3001\u5b9f\u884c\u6642\u306b\u306f\u60c5\u5831\u304c\u4e00\u3064\u5931\u308f\u308c\u3066\u3044\u308b\u72b6\u614b\u3067\u3059.  \u3053\u308c\u306b\u3088\u308a\u3001jdk 1.5 \u4ee5\u524d\u306e raw type \u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3067\u3042\u3063\u3066\u3082\u3001\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u3092\u65e2\u5b58\u306e raw type \u306b\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u305f\u306e\u3067\u3059.<\/ul>\n
    \u6cdb\u578b\u8bbe\u8ba1<\/h1>\n
    \u5143\u7ec4<\/h2>\n
    \u5143\u7ec4\u662f\u4e00\u79cd\u53ef\u4ee5\u5b58\u50a8\u591a\u4e2a\u4e0d\u540c\u5143\u7d20\u5e76\u6709\u5e8f\u7684\u6570\u636e\u7ed3\u6784\u3002<\/p>\n
    public<\/span> class<\/span> Pair<\/span><<\/span>V<\/span>,<\/span> W<\/span>><\/span> {<\/span>\r\n  private<\/span> final<\/span> V<\/span> v<\/span>;<\/span>\r\n  private<\/span> final<\/span> W<\/span> w<\/span>;<\/span>\r\n\r\n  Pair<\/span>(<\/span>V<\/span> v<\/span>,<\/span> W<\/span> w<\/span>)<\/span> {<\/span>\r\n    this<\/span>.<\/span>v<\/span> =<\/span> v<\/span>;<\/span>\r\n    this<\/span>.<\/span>w<\/span> =<\/span> w<\/span>;<\/span>\r\n  }<\/span>\r\n\r\n  V<\/span> getV<\/span>()<\/span> {<\/span>\r\n    return<\/span> v<\/span>;<\/span>\r\n  }<\/span>\r\n\r\n  W<\/span> getW<\/span>()<\/span> {<\/span>\r\n    return<\/span> w<\/span>;<\/span>\r\n  }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
    Pair<\/span><<\/span>String<\/span>,<\/span> Integer<\/span>><\/span> tuple2<\/span> =<\/span> new<\/span> Pair<\/span><>(<\/span>\"toilet-score\"<\/span>,<\/span> 100<\/span>);<\/span>\r\n\r\nString<\/span> v<\/span> =<\/span> tuple2<\/span>.<\/span>getV<\/span>();<\/span>\r\nInteger<\/span> w<\/span> =<\/span> tuple2<\/span>.<\/span>getW<\/span>();<\/span>\r\n\r\nSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>v<\/span> +<\/span> w<\/span>);<\/span>\r\n<\/code><\/pre>\n
    \u901a\u8fc7\u6269\u5c55\u5b58\u50a8\u548c\u63d0\u53d6\u5305\u542b\u4e24\u79cd\u57fa\u672c\u5f02\u6784\u6570\u636e\u7684\u6570\u636e\u5bf9\u7684\u4f7f\u7528\u6a21\u5f0f\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n
    public<\/span> class<\/span> Tuple<\/span> {<\/span>\r\n  public<\/span> static<\/span> class<\/span> Tuple2<\/span><<\/span>A<\/span>,<\/span> B<\/span>><\/span> {<\/span>\r\n    private<\/span> final<\/span> A<\/span> a<\/span>;<\/span>\r\n    private<\/span> final<\/span> B<\/span> b<\/span>;<\/span>\r\n\r\n    public<\/span> Tuple2<\/span>(<\/span>A<\/span> a<\/span>,<\/span> B<\/span> b<\/span>)<\/span> {<\/span>\r\n      this<\/span>.<\/span>a<\/span> =<\/span> a<\/span>;<\/span>\r\n      this<\/span>.<\/span>b<\/span> =<\/span> b<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> A<\/span> getA<\/span>()<\/span> {<\/span>\r\n      return<\/span> a<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> B<\/span> getB<\/span>()<\/span> {<\/span>\r\n      return<\/span> b<\/span>;<\/span>\r\n    }<\/span>\r\n  }<\/span>\r\n\r\n  public<\/span> static<\/span> class<\/span> Tuple3<\/span><<\/span>A<\/span>,<\/span> B<\/span>,<\/span> C<\/span>><\/span> extends<\/span> Tuple2<\/span><<\/span>A<\/span>,<\/span> B<\/span>><\/span> {<\/span>\r\n    private<\/span> final<\/span> C<\/span> c<\/span>;<\/span>\r\n\r\n    public<\/span> Tuple3<\/span>(<\/span>A<\/span> a<\/span>,<\/span> B<\/span> b<\/span>,<\/span> C<\/span> c<\/span>)<\/span> {<\/span>\r\n      super<\/span>(<\/span>a<\/span>,<\/span> b<\/span>);<\/span>\r\n      this<\/span>.<\/span>c<\/span> =<\/span> c<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> C<\/span> getC<\/span>()<\/span> {<\/span>\r\n      return<\/span> c<\/span>;<\/span>\r\n    }<\/span>\r\n  }<\/span>\r\n\r\n  \/\/ Tuple4, Tuple5 ... <\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
    \u6211\u8ba4\u4e3a\u53ef\u4ee5\u901a\u8fc7\u589e\u52a0\u9759\u6001\u5185\u90e8\u7c7b\u4ee5\u63d0\u9ad8\u901a\u7528\u6027\uff0c\u5e76\u5c06\u6bcf\u4e2a\u6784\u9020\u51fd\u6570\u7684\u8bbf\u95ee\u5668\u66f4\u6539\u4e3apublic\uff0c\u4ece\u800c\u521b\u5efa\u4e00\u4e2a\u53ef\u4ee5\u4ee5\u7c7b\u578b\u5b89\u5168\u7684\u65b9\u5f0f\u5b58\u50a8\u4e09\u4e2a\uff0c\u56db\u4e2a\u6216\u66f4\u591a\u7c7b\u578b\u7684\u6570\u636e\u7684\u901a\u7528\u5143\u7ec4\u5b9e\u7528\u7c7b\u3002<\/p>\n
    \u501f\u9274\u5148\u4eba\u7684\u667a\u6167<\/h3>\n
    \u7531\u4e8e\u5df2\u5b58\u5728\u4e14\u5e7f\u6cdb\u4f7f\u7528\u7684\u5e93\uff0c\u5982Commons Lang\u7684Pair\u7b49\uff0c\u53ef\u4ee5\u5f97\u5230\u66f4\u786e\u5207\u4e14\u591a\u6837\u7684\u6a21\u5f0f\u3002<\/p>\n
    \u8bf7\u53c2\u8003\u5b98\u65b9 GitHub \u9875\u9762\uff0cjavatuples \u63d0\u4f9b\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u7ed3\u6784\uff0c\u4ece\u4e00\u4e2a\u7c7b\u578b\u5230\u5341\u4e2a\u7c7b\u578b\u7684\u8303\u56f4\u5185\uff0c\u867d\u7136\u89c4\u6a21\u8f83\u5c0f\u4f46\u4ecd\u7136\u4ee4\u4eba\u6ee1\u610f\u3002<\/p>\n
    \u5173\u4e8ejavatuples\uff0c\u6211\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u5b83\u4ee5\u53ea\u6709\u4e00\u4e2a\u7c7b\u578b\u7684Unit\u5143\u7ec4\u4e3a\u8d77\u70b9\uff0c\u7136\u540e\u4ee5\u4e00\u79cd\u4f18\u7f8e\u7684\u7ee7\u627f\u5f62\u5f0f\u5c55\u5f00…\u6211\u89c9\u5f97\u5f88\u6709\u610f\u601d\u7684\u662f\u4ee5\u5177\u6709\u4e24\u79cd\u7c7b\u578b\u7684Tuple\u7c7b\u4e3a\u4e2d\u5fc3\uff0c\u540c\u65f6\u4e5f\u8ba9Unit\u7ee7\u627fTuple\u3002<\/p>\n
    \u901a\u914d\u7b26<\/h2>\n
    \u5728\u524d\u6587\u7684\u57fa\u7840\u4e0a\u5ef6\u4f38\u4e00\u4e0b\uff0c\u6cdb\u578b\u662f\u4e0d\u53ef\u53d8\u7684\u3002\u867d\u7136\u6cdb\u578b\u786e\u4fdd\u4e86\u4e00\u5b9a\u4f1a\u6709\u67d0\u79cd\u786e\u5b9a\u7684\u7c7b\u578b\uff0c\u4f46\u5e76\u4e0d\u8868\u793a\u5141\u8bb8\u4efb\u4f55\u7ee7\u627fT\u7c7b\u578b\u7684\u7c7b\u578b\u3002List\u548cList\u4e4b\u95f4\u5e76\u6ca1\u6709\u7ee7\u627f\u5173\u7cfb\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5b83\u4e0d\u662f\u5f88\u7075\u6d3b\u3002<\/string><\/object><\/t><\/p>\n
    \u5728\u8fd9\u4e2a\u65f6\u5019\uff0c\u901a\u914d\u7b26\u5c31\u5728\u4e0e\u6cdb\u578b\u76f8\u540c\u7684\u65f6\u95f4\uff08jdk 1.5\uff09\u51fa\u73b0\u4e86\u3002<\/p>\n
    \u975e\u5883\u754c\u7ebf\u7684\u4e07\u80fd\u5361\u7247 <?><\/h3>\n
    \u5982\u679c\u60f3\u8981\u4f7f\u7528\u6cdb\u578b\uff0c\u4f46\u5b9e\u9645\u7c7b\u578b\u53c2\u6570\u5c1a\u672a\u786e\u5b9a\uff0c\u53ef\u4ee5\u5c06\u95ee\u53f7\u4f20\u9012\u7ed9\u5360\u4f4d\u7b26\u3002<\/e><\/p>\n
    \/\/ T \u304c\u89e3\u6c7a\u3067\u304d\u306a\u3044\u305f\u3081, \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/span>\r\nList<\/span><<\/span>T<\/span>><\/span> someList<\/span> =<\/span> new<\/span> ArrayList<\/span><<\/span>String<\/span>>();<\/span> \r\n\r\n\/\/ \u5b9f\u578b\u304c\u6c7a\u307e\u308b\u524d\u306b\u683c\u7d0d\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u305f\u3081, \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/span>\r\nList<\/span><?><\/span> anotherList<\/span> =<\/span> new<\/span> ArrayList<\/span><>();<\/span> anotherList<\/span>.<\/span>add<\/span>(<\/span>\"a\"<\/span>);<\/span> \r\n\r\n\/\/ OK<\/span>\r\nList<\/span><?><\/span> theOtherList<\/span> =<\/span> new<\/span> ArrayList<\/span><<\/span>String<\/span>>();<\/span> theOtherList<\/span>.<\/span>add<\/span>(<\/span>\"a\"<\/span>);<\/span> \r\n<\/code><\/pre>\n
    \u5883\u754c\u7684\u91ce\u724c\uff08\u4e0a\u9650\uff09
    \n\u5728Functional Interface javadoc\u4e2d\u6709\u5199\u660e\uff0c\u5b83\u662f\u4e00\u4e2a\u53ea\u6709\u4e00\u4e2a\u62bd\u8c61\u65b9\u6cd5\u7684\u63a5\u53e3\u3002\u4ee5\u4e0b\u662f\u90e8\u5206\u5305\u542b\u5728java.util.Objects\u4e2d\u7684Function\u63a5\u53e3\u3002<\/p>\n
    @FunctionalInterface<\/span>\r\npublic<\/span> interface<\/span> Function<\/span><<\/span>T<\/span>,<\/span> R<\/span>><\/span> {<\/span>\r\n    \/**\r\n     * Applies this function to the given argument. \r\n     * \u4e0e\u3048\u3089\u308c\u305f\u5f15\u6570\u3092\u53d7\u3051\u4ed8\u3051\u307e\u3059.\r\n     * \r\n     * @param t the function argument \r\n     * \u30d1\u30e9\u30e1\u30fc\u30bf t \u95a2\u6570\u306e\u5f15\u6570\r\n     * \r\n     * @return the function result \r\n     * \u30ea\u30bf\u30fc\u30f3 \u95a2\u6570\u306e\u7d50\u679c\r\n     *\/<\/span>\r\n    R<\/span> apply<\/span>(<\/span>T<\/span> t<\/span>);<\/span>\r\n\r\n    \/\/ omit <\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
    \u51fd\u6570\u63a5\u53e3\uff0c\u5982BiFunction\u3001Consumer\u548cSupplier\u7b49\uff0c\u8868\u793a\u63a5\u53d7\u67d0\u4e9b\u4e1c\u897f\u4f46\u5c1a\u672a\u786e\u5b9a\u7c7b\u578b\uff0c\u6216\u8005\u4ee5\u67d0\u79cd\u7ed3\u679c\u8fd4\u56de\u67d0\u4e9b\u4e1c\u897f\u4f46\u5c1a\u672a\u786e\u5b9a\u7c7b\u578b\u7684\u7ed3\u6784\u3002<\/p>\n
    \u50cfIntSupplier\u7684getAsInt()\u65b9\u6cd5, \u8fd8\u6709\u5176\u4ed6\u9884\u5148\u786e\u5b9a\u8fd4\u56de\u503c\u53ea\u80fd\u662fint\u7c7b\u578b\u7684\u65b9\u6cd5, \u4f46\u57fa\u672c\u4e0a\u6211\u4eec\u53ef\u4ee5\u770b\u5230, \u5b83\u4eec\u4f7f\u7528\u4e86\u6cdb\u578b\u6765\u589e\u52a0\u7075\u6d3b\u6027\u3002<\/p>\n
    \u6cdb\u578b\u548c\u6211 – \u7c7b\u4f3c\u4e8e\u6cdb\u578b\u65b9\u6cd5\u7684\u6e38\u620f<\/h1>\n
    \u8fd9\u4e2a\u5947\u602a\u7684\u6807\u9898\u662f\u5355\u7eaf\u7684\u73a9\u95f9\u5907\u5fd8\u5f55\u4e4b\u7c7b\u7684\u4e1c\u897f\u3002<\/p>\n
    \u524d\u51e0\u5929\uff0c\u6211\u521b\u5efa\u4e86\u4e00\u4e2a\u7b97\u6cd5\u3002
    \n\u5b83\u63a5\u53d7\u4e00\u4e2a\u4e0d\u4f9d\u8d56\u4e8e\u5143\u7d20\u7c7b\u578b\u7684\u5217\u8868\uff0c\u5bf9\u8be5\u5217\u8868\u8fdb\u884c\u5904\u7406\uff0c\u5e76\u5c06\u64cd\u4f5c\u7ed3\u679c\u5b58\u5165\u53e6\u4e00\u4e2a\u5217\u8868\u4e2d\uff0c\u7136\u540e\u8fd4\u56de\u8fd9\u4e2aO(N)\u7684\u51fd\u6570\u3002<\/p>\n
      private<\/span> static<\/span> List<\/span><<\/span>Object<\/span>><\/span> doSomething<\/span>(<\/span>List<\/span><<\/span>Object<\/span>><\/span> list<\/span>)<\/span> {<\/span>\r\n\r\n    List<\/span><<\/span>Object<\/span>><\/span> result<\/span> =<\/span> new<\/span> ArrayList<\/span><>();<\/span>\r\n\r\n    \/\/ \u51e6\u7406<\/span>\r\n\r\n    return<\/span> result<\/span>;<\/span>\r\n  }<\/span>\r\n<\/code><\/pre>\n
    \u4f46\u662f\uff0c<\/p>\n
      public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n   List<\/span><<\/span>String<\/span>><\/span> strListA<\/span> =<\/span> Arrays<\/span>.<\/span>asList<\/span>(<\/span>\"c\"<\/span>,<\/span> \"a\"<\/span>,<\/span> \"b\"<\/span>,<\/span> \"b\"<\/span>,<\/span> \"c\"<\/span>,<\/span> \"a\"<\/span>,<\/span> \"d\"<\/span>,<\/span> \"b\"<\/span>);<\/span> \r\n\r\n   List<\/span><<\/span>Object<\/span>><\/span> strListB<\/span> =<\/span> Arrays<\/span>.<\/span>asList<\/span>(<\/span>\"c\"<\/span>,<\/span> \"a\"<\/span>,<\/span> \"b\"<\/span>,<\/span> \"b\"<\/span>,<\/span> \"c\"<\/span>,<\/span> \"a\"<\/span>,<\/span> \"d\"<\/span>,<\/span> \"b\"<\/span>);<\/span>\r\n\r\n   \/\/ List<Object> \u3067\u306f\u306a\u304f List<String> \u3092\u6e21\u3059\u305f\u3081\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/span>\r\n   doSomething<\/span>(<\/span>strListA<\/span>).<\/span>forEach<\/span>(<\/span>System<\/span>.<\/span>out<\/span>::<\/span>print<\/span>);<\/span>\r\n\r\n   doSomething<\/span>(<\/span>strListB<\/span>).<\/span>forEach<\/span>(<\/span>System<\/span>.<\/span>out<\/span>::<\/span>print<\/span>);<\/span>\r\n  }<\/span>\r\n<\/code><\/pre>\n
    \u6211\u5bf9\u4e8e\u4f20\u9012\u7ed9\u53c2\u6570\u7684\u5217\u8868\u7c7b\u578b\u53c2\u6570\u90fd\u9650\u5236\u4e3aObject\u7c7b\u578b\u5e76\u4e0d\u6ee1\u610f\u3002\u6bd4\u5982\uff0c\u5982\u679c\u8981\u6dfb\u52a0\u4e00\u4e2a\u751f\u6210\u53ea\u63a5\u53d7\u6570\u5b57\u7684\u5217\u8868\u7684\u65b9\u6cd5\uff0c\u5e76\u4e14\u60f3\u901a\u8fc7\u53c2\u6570\u4f20\u9012\uff0c\u8fd9\u6837\u6709\u70b9\u4e0d\u65b9\u4fbf\u3002<\/p>\n
      private<\/span> static<\/span> List<\/span><<\/span>Number<\/span>><\/span> makeNumberList<\/span>(<\/span>Number<\/span>...<\/span>nums<\/span>)<\/span> {<\/span>\r\n    List<\/span><<\/span>Number<\/span>><\/span> list<\/span> =<\/span> new<\/span> ArrayList<\/span><>();<\/span>\r\n    for<\/span> (<\/span>Number<\/span> num<\/span> :<\/span> nums<\/span>)<\/span> list<\/span>.<\/span>add<\/span>(<\/span>num<\/span>);<\/span>\r\n    return<\/span> list<\/span>;<\/span>\r\n  }<\/span>\r\n<\/code><\/pre>\n
      public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n   doSomething<\/span>(<\/span>makeNumberList<\/span>(<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 1<\/span>)).<\/span>forEach<\/span>(<\/span>System<\/span>.<\/span>out<\/span>::<\/span>print<\/span>);<\/span> \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/span>\r\n  }<\/span>\r\n<\/code><\/pre>\n
    \u4e3a\u4e86\u5728\u7f16\u8bd1\u65f6\u80fd\u591f\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\uff0c\u6211\u6dfb\u52a0\u4e86\u7c7b\u578b\u6807\u8bb0\uff0c\u5c06\u66f4\u6539\u4e3a\u3002<\/t><\/object><\/p>\n
    \/\/ \u4e3a\u4e86\u5728\u53ea\u6709\u7c7b\u578b\u53c2\u6570\u548c\u7c7b\u578b\u6807\u8bb0\u5339\u914d\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u7f16\u8bd1\uff0c\u6211\u4eec\u8003\u8651\u5c06Class\u5b57\u9762\u91cf\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u65b9\u6cd5\uff0c\u8fd9\u6837\u5728\u8fd0\u884c\u65f6\u53ef\u4ee5\u4f20\u9012\u7c7b\u578b\u4fe1\u606f\u3002
    \n\/\/ \u7136\u800c\uff0c\u5728\u4fee\u6b63\u8fc7\u7a0b\u4e2d\uff0c\u7531\u4e8eType\u5728\u65b9\u6cd5\u4e2d\u7684\u7528\u6cd5\u4e22\u5931\u4e86\uff0c\u6240\u4ee5\u6211\u4eec\u6682\u65f6\u6401\u7f6e\u3002<\/t><\/p><\/blockquote>\n
      private<\/span> static<\/span> <<\/span>T<\/span>><\/span> List<\/span><<\/span>T<\/span>><\/span> doSomething<\/span>(<\/span>List<\/span><<\/span>T<\/span>><\/span> list<\/span>)<\/span> {<\/span>\r\n\r\n    List<\/span><<\/span>T<\/span>><\/span> result<\/span> =<\/span> new<\/span> ArrayList<\/span><>();<\/span>\r\n\r\n    \/\/ \u51e6\u7406<\/span>\r\n\r\n    return<\/span> result<\/span>;<\/span>\r\n  }<\/span>\r\n<\/code><\/pre>\n
    \u5c1d\u8bd5\u521b\u5efa\u4e00\u4e2a\u7528\u4e8e\u6570\u5b57\u5217\u8868\u7684\u65b9\u6cd5\uff0c\u4f7f\u5176\u63a5\u53d7 Number \u7c7b\u578b\u53ca\u5176\u5b50\u7c7b\u578b\u4f5c\u4e3a\u53c2\u6570…<\/p>\n
      private<\/span> static<\/span> <<\/span>T<\/span> extends<\/span> Number<\/span>><\/span> List<\/span><<\/span>T<\/span>><\/span> makeNumberList<\/span>(<\/span>T<\/span>...<\/span>args<\/span>)<\/span> {<\/span>\r\n    List<\/span><<\/span>T<\/span>><\/span> list<\/span> =<\/span> new<\/span> ArrayList<\/span><>();<\/span>\r\n    for<\/span> (<\/span>T<\/span> arg<\/span> :<\/span> args<\/span>)<\/span> list<\/span>.<\/span>add<\/span>(<\/span>arg<\/span>);<\/span>\r\n    return<\/span> list<\/span>;<\/span>\r\n  }<\/span>\r\n<\/code><\/pre>\n
      public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n    List<\/span><<\/span>Integer<\/span>><\/span> someList<\/span> =<\/span> makeNumberList<\/span>(<\/span>5<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 3<\/span>,<\/span> 1<\/span>,<\/span> 2<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>);<\/span>\r\n    doSomething<\/span>(<\/span>someList<\/span>).<\/span>forEach<\/span>(<\/span>System<\/span>.<\/span>out<\/span>::<\/span>print<\/span>);<\/span>\r\n  }<\/span>\r\n<\/code><\/pre>\n
    \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5c06\u9664\u4e86`List`\u4e4b\u5916\u7684\u5217\u8868\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u3002<\/object><\/p>\n
    \u7ed3\u675f\u4e86<\/h1>\n
    \u5728\u67d0\u4e2a\u7a81\u53d1\u7684\u65f6\u673a\uff0c\u6211\u7a81\u7136\u5bf9\u6cdb\u578b\u4ea7\u751f\u4e86\u5174\u8da3\u3002
    \n\u867d\u7136\u8fd9\u4e48\u8bf4\u6709\u70b9\u5947\u602a\uff0c\u4f46\u662f\u6211\u89c9\u5f97\u5b83\u6709\u70b9\u50cf\u662f\u4e00\u79cd\u5b89\u5168\u4f46\u4e0d\u662f\u90a3\u4e48\u5b89\u5168\u7684\u4e16\u754c\u4e2d\u7a81\u7136\u964d\u4e34\u7684\u5b89\u5168\u4e14\u7075\u6d3b\u7684\u9b54\u6cd5\u5de5\u5177\uff08\u6211\u5728\u8bf4\u4ec0\u4e48\u5462\uff09\uff0c\u53ef\u80fd\u662f\u56e0\u4e3a\u8fd9\u79cd\u5947\u5999\u7684\u5730\u65b9\u5f15\u8d77\u4e86\u6211\u7684\u5173\u6ce8\u3002<\/p>\n
    \u5728\u6211\u5199\u8fd9\u4e2a\u7684\u540c\u65f6\uff0c\u6211\u610f\u8bc6\u5230\u8fd9\u91cc\u6709\u5f88\u591a\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6216\u8005\u6211\u5176\u5b9e\u4e0d\u77e5\u9053\u8fd9\u4e9b\u5730\u65b9\uff0c\u6240\u4ee5\u8bf7\u60a8\u5728\u53d1\u73b0\u9519\u8bef\u65f6\u7ed9\u6211\u6307\u70b9\u4e00\u4e0b\u3002<\/p>\n
    \u53c2\u8003\u4ee5\u4e0b\u5185\u5bb9\uff0c\u4ec5\u9700\u4e00\u4e2a\u9009\u9879\u3002<\/h1>\n
    \u300aEffective Java\u300b\u7b2c\u4e8c\u7248
    \nOracle Java\u6587\u6863
    \n– https:\/\/docs.oracle.com\/javase\/specs\/jls\/se8\/html\/jls-8.html#jls-8.1.2
    \n– https:\/\/docs.oracle.com\/javase\/8\/docs\/api\/java\/util\/function\/package-summary.html#package.description<\/p>\n
    \u4ee5\u4e0a<\/h3><\/object><\/h1>\n","protected":false},"excerpt":{"rendered":"
    \u9996\u5148 \u9274\u4e8e\u4e4b\u524d\u5173\u4e8eJava\u7684\u9759\u6001\u4e3b\u9898\u7684\u5185\u5bb9\uff0c\u6211\u6253\u7b97\u7ee7\u7eed\u4e13\u6ce8\u5730\u8fdb\u884cJava\u7684\u5b66\u4e60\u548c\u5b9e\u8df5\u3002 \u76ee\u6807 \u65e0\u8bba\u662f\u6cdb\u578b\u8fd8\u662f\u975e […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-31671","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nJava\u7684\u6cdb\u578b\u4e4b\u8c08 - Blog - Silicon Cloud<\/title>\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\/java\u7684\u6cdb\u578b\u4e4b\u8c08\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u7684\u6cdb\u578b\u4e4b\u8c08\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u9274\u4e8e\u4e4b\u524d\u5173\u4e8eJava\u7684\u9759\u6001\u4e3b\u9898\u7684\u5185\u5bb9\uff0c\u6211\u6253\u7b97\u7ee7\u7eed\u4e13\u6ce8\u5730\u8fdb\u884cJava\u7684\u5b66\u4e60\u548c\u5b9e\u8df5\u3002 \u76ee\u6807 \u65e0\u8bba\u662f\u6cdb\u578b\u8fd8\u662f\u975e […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/java\u7684\u6cdb\u578b\u4e4b\u8c08\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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