{"id":78209,"date":"2026-02-26T16:58:27","date_gmt":"2026-02-26T08:58:27","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/78209.html"},"modified":"2026-02-26T16:58:27","modified_gmt":"2026-02-26T08:58:27","slug":"java-%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e7%bc%96%e7%a8%8b%e5%ae%8c%e5%85%a8%e5%85%a5%e9%97%a8%ef%bc%9a%e5%af%b9%e8%b1%a1%e3%80%81%e7%b1%bb%e3%80%81%e7%bb%a7%e6%89%bf%e3%80%81%e6%8e%a5%e5%8f%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/78209.html","title":{"rendered":"Java \u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u5b8c\u5168\u5165\u95e8\uff1a\u5bf9\u8c61\u3001\u7c7b\u3001\u7ee7\u627f\u3001\u63a5\u53e3\u3001\u5305 \u4e94\u5927\u6838\u5fc3\u6982\u5ff5\u4e00\u6587\u901a\u900f"},"content":{"rendered":"

\u4f60\u662f\u5426\u521a\u63a5\u89e6 Java，\u770b\u5230 class\u3001extends\u3001implements \u8fd9\u4e9b\u5173\u952e\u5b57\u5c31\u4e00\u5934\u96fe\u6c34？\u6216\u8005\u4f60\u5df2\u7ecf\u80fd\u5199\u7b80\u5355\u7a0b\u5e8f，\u4f46\u603b\u89c9\u5f97\u5bf9\u9762\u5411\u5bf9\u8c61"\u4f3c\u61c2\u975e\u61c2"？<\/p>\n

\u8fd9\u7bc7\u6587\u7ae0\u4f1a\u4ece\u96f6\u57fa\u7840\u51fa\u53d1，\u7528\u5927\u91cf\u751f\u6d3b\u5316\u6bd4\u55bb\u548c\u5b8c\u6574\u53ef\u8fd0\u884c\u7684\u4ee3\u7801，\u5e2e\u4f60\u4e00\u6b21\u6027\u5403\u900f Java \u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u4e94\u5927\u6838\u5fc3\u6982\u5ff5\u3002\u6bcf\u4e2a\u6982\u5ff5\u90fd\u914d\u6709\u4ee3\u7801\u5b9e\u6218，\u8bfb\u5b8c\u5373\u53ef\u52a8\u624b\u3002<\/p>\n

\n

\u4e00\u3001\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u5230\u5e95\u662f\u4ec0\u4e48<\/h3>\n

\u5728\u5199\u4ee3\u7801\u4e4b\u524d，\u4f60\u9700\u8981\u5148\u7406\u89e3\u4e00\u79cd\u601d\u7ef4\u65b9\u5f0f\u2014\u2014\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b（Object-Oriented Programming，\u7b80\u79f0 OOP）\u3002<\/p>\n

\u4f20\u7edf\u7684\u7f16\u7a0b\u65b9\u5f0f（\u9762\u5411\u8fc7\u7a0b）\u50cf\u662f\u5728\u5199\u4e00\u4efd\u83dc\u8c31：\u5148\u505a\u7b2c\u4e00\u6b65，\u518d\u505a\u7b2c\u4e8c\u6b65，\u4e00\u6b65\u63a5\u4e00\u6b65\u3002\u800c\u9762\u5411\u5bf9\u8c61\u7684\u601d\u7ef4\u65b9\u5f0f\u4e0d\u540c，\u5b83\u628a\u73b0\u5b9e\u4e16\u754c\u62bd\u8c61\u6210\u4e00\u4e2a\u4e2a\u5bf9\u8c61，\u6bcf\u4e2a\u5bf9\u8c61\u6709\u81ea\u5df1\u7684\u6570\u636e\u548c\u80fd\u529b，\u5bf9\u8c61\u4e4b\u95f4\u901a\u8fc7\u4e92\u76f8\u53d1\u6d88\u606f\u6765\u534f\u4f5c\u5b8c\u6210\u4efb\u52a1\u3002<\/p>\n

Java \u4ece\u8bbe\u8ba1\u4e4b\u521d\u5c31\u662f\u4e00\u95e8\u9762\u5411\u5bf9\u8c61\u7684\u8bed\u8a00，\u5b83\u7684\u4e94\u5927\u6838\u5fc3\u6982\u5ff5\u662f：<\/p>\n\n\u6982\u5ff5\u4e00\u53e5\u8bdd\u5b9a\u4e49\u751f\u6d3b\u6bd4\u55bb<\/tr>\n\n\n\n\n\n\n
\u5bf9\u8c61（Object）<\/td>\n\u72b6\u6001 + \u884c\u4e3a\u7684\u5c01\u88c5\u4f53<\/td>\n\u4e00\u8f86\u5177\u4f53\u7684\u81ea\u884c\u8f66<\/td>\n<\/tr>\n
\u7c7b（Class）<\/td>\n\u521b\u5efa\u5bf9\u8c61\u7684\u84dd\u56fe<\/td>\n\u81ea\u884c\u8f66\u7684\u8bbe\u8ba1\u56fe\u7eb8<\/td>\n<\/tr>\n
\u7ee7\u627f（Inheritance）<\/td>\n\u5b50\u7c7b\u590d\u7528\u7236\u7c7b\u7684\u4ee3\u7801<\/td>\n\u5c71\u5730\u8f66\u7ee7\u627f\u4e86\u81ea\u884c\u8f66\u7684\u57fa\u672c\u529f\u80fd<\/td>\n<\/tr>\n
\u63a5\u53e3（Interface）<\/td>\n\u884c\u4e3a\u7684\u5951\u7ea6\/\u627f\u8bfa<\/td>\n\u201c\u80fd\u98de\u201d\u2014\u2014\u9e1f\u548c\u98de\u673a\u90fd\u80fd\u5b9e\u73b0<\/td>\n<\/tr>\n
\u5305（Package）<\/td>\n\u7ec4\u7ec7\u7c7b\u7684\u547d\u540d\u7a7a\u95f4<\/td>\n\u56fe\u4e66\u9986\u91cc\u7684\u5206\u7c7b\u4e66\u67b6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e0b\u9762\u9010\u4e00\u5c55\u5f00\u3002<\/p>\n

\n

\u4e8c\u3001\u5bf9\u8c61（Object）\u2014\u2014\u4e07\u7269\u7686\u5bf9\u8c61<\/h3>\n

2.1 \u4ece\u73b0\u5b9e\u4e16\u754c\u7406\u89e3\u5bf9\u8c61<\/h4>\n

\u73af\u987e\u4f60\u7684\u56db\u5468，\u5230\u5904\u90fd\u662f\u5bf9\u8c61：\u4f60\u7684\u624b\u673a\u3001\u4f60\u7684\u6c34\u676f\u3001\u4f60\u9762\u524d\u7684\u7535\u8111\u3002<\/p>\n

\u6bcf\u4e2a\u73b0\u5b9e\u5bf9\u8c61\u90fd\u6709\u4e24\u4e2a\u7279\u5f81：<\/p>\n

    \n
  • \u72b6\u6001（State）：\u63cf\u8ff0\u5bf9\u8c61"\u662f\u4ec0\u4e48\u6837"\u2014\u2014\u624b\u673a\u7684\u54c1\u724c\u3001\u7535\u91cf\u3001\u662f\u5426\u9759\u97f3<\/li>\n
  • \u884c\u4e3a（Behavior）：\u63cf\u8ff0\u5bf9\u8c61"\u80fd\u505a\u4ec0\u4e48"\u2014\u2014\u624b\u673a\u80fd\u6253\u7535\u8bdd\u3001\u53d1\u77ed\u4fe1\u3001\u62cd\u7167<\/li>\n<\/ul>\n

    \u8fd9\u4e2a\u601d\u8def\u76f4\u63a5\u642c\u5230\u7f16\u7a0b\u91cc：<\/p>\n

      \n
    • \u72b6\u6001 \u2192 \u5b57\u6bb5（Field），\u4e5f\u53eb\u6210\u5458\u53d8\u91cf<\/li>\n
    • \u884c\u4e3a \u2192 \u65b9\u6cd5（Method），\u4e5f\u53eb\u6210\u5458\u51fd\u6570<\/li>\n<\/ul>\n

      2.2 \u6570\u636e\u5c01\u88c5\u2014\u2014\u5bf9\u8c61\u6700\u91cd\u8981\u7684\u539f\u5219<\/h4>\n

      \u8f6f\u4ef6\u5bf9\u8c61\u6709\u4e00\u4e2a\u5173\u952e\u8bbe\u8ba1\u539f\u5219：\u6570\u636e\u5c01\u88c5（Data Encapsulation）\u3002<\/p>\n

      \u4ec0\u4e48\u610f\u601d？\u5c31\u662f\u5bf9\u8c61\u7684\u5185\u90e8\u6570\u636e\u4e0d\u80fd\u88ab\u5916\u754c\u76f4\u63a5\u8bbf\u95ee，\u5fc5\u987b\u901a\u8fc7\u65b9\u6cd5\u6765\u64cd\u4f5c\u3002<\/p>\n

      \u60f3\u8c61\u4e00\u53f0 ATM \u673a：\u4f60\u4e0d\u80fd\u76f4\u63a5\u6253\u5f00\u673a\u5668\u62ff\u94b1，\u4f60\u5fc5\u987b\u901a\u8fc7"\u63d2\u5361\u2192\u8f93\u5bc6\u7801\u2192\u9009\u91d1\u989d\u2192\u53d6\u6b3e"\u8fd9\u4e00\u5957\u6d41\u7a0b（\u65b9\u6cd5）\u6765\u64cd\u4f5c\u3002ATM \u5185\u90e8\u6709\u591a\u5c11\u94b1\u3001\u949e\u7968\u600e\u4e48\u5b58\u653e，\u4f60\u5b8c\u5168\u4e0d\u77e5\u9053，\u4e5f\u4e0d\u9700\u8981\u77e5\u9053\u3002<\/p>\n

      \u8fd9\u6837\u505a\u7684\u597d\u5904\u662f：<\/p>\n

    • \u6a21\u5757\u5316：\u6bcf\u4e2a\u5bf9\u8c61\u72ec\u7acb\u7ef4\u62a4，\u4e92\u4e0d\u5e72\u6270<\/li>\n
    • \u4fe1\u606f\u9690\u85cf：\u5185\u90e8\u5b9e\u73b0\u53ef\u4ee5\u968f\u65f6\u4fee\u6539，\u53ea\u8981\u65b9\u6cd5\u63a5\u53e3\u4e0d\u53d8，\u5916\u90e8\u4ee3\u7801\u4e0d\u53d7\u5f71\u54cd<\/li>\n
    • \u4ee3\u7801\u590d\u7528：\u505a\u597d\u7684\u5bf9\u8c61\u53ef\u4ee5\u5230\u5904\u4f7f\u7528<\/li>\n
    • \u53ef\u63d2\u62d4：\u67d0\u4e2a\u5bf9\u8c61\u51fa\u95ee\u9898\u4e86，\u6362\u4e00\u4e2a\u5c31\u884c，\u5c31\u50cf\u6362\u706f\u6ce1\u4e0d\u7528\u6362\u6574\u4e2a\u706f\u5177<\/li>\n

      2.3 \u4ee3\u7801\u5b9e\u6218：\u7528 Java \u8868\u793a\u4e00\u4e2a\u5bf9\u8c61<\/h4>\n

      class<\/span> Dog<\/span> {<\/span>
      \n \/\/ \u72b6\u6001（\u5b57\u6bb5）<\/span>
      \n String<\/span> name;<\/span>
      \n String<\/span> color;<\/span>
      \n boolean<\/span> hungry;<\/span><\/p>\n

      \/\/ \u884c\u4e3a（\u65b9\u6cd5）<\/span>
      \n void<\/span> bark<\/span>(<\/span>)<\/span> {<\/span>
      \n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>name +<\/span> " \u6c6a\u6c6a\u53eb！"<\/span>)<\/span>;<\/span>
      \n }<\/span><\/p>\n

      void<\/span> eat<\/span>(<\/span>)<\/span> {<\/span>
      \n hungry =<\/span> false<\/span>;<\/span>
      \n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>name +<\/span> " \u5403\u9971\u4e86\u3002"<\/span>)<\/span>;<\/span>
      \n }<\/span><\/p>\n

      void<\/span> printState<\/span>(<\/span>)<\/span> {<\/span>
      \n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u540d\u5b57: "<\/span> +<\/span> name +<\/span>
      \n ", \u989c\u8272: "<\/span> +<\/span> color +<\/span>
      \n ", \u997f\u4e86\u5417: "<\/span> +<\/span> hungry)<\/span>;<\/span>
      \n }<\/span>
      \n}<\/span><\/p>\n

      class<\/span> DogDemo<\/span> {<\/span>
      \n public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[<\/span>]<\/span> args)<\/span> {<\/span>
      \n Dog<\/span> myDog =<\/span> new<\/span> Dog<\/span>(<\/span>)<\/span>;<\/span>
      \n myDog.<\/span>name =<\/span> "\u65fa\u8d22"<\/span>;<\/span>
      \n myDog.<\/span>color =<\/span> "\u68d5\u8272"<\/span>;<\/span>
      \n myDog.<\/span>hungry =<\/span> true<\/span>;<\/span><\/p>\n

      myDog.<\/span>printState<\/span>(<\/span>)<\/span>;<\/span>
      \n myDog.<\/span>bark<\/span>(<\/span>)<\/span>;<\/span>
      \n myDog.<\/span>eat<\/span>(<\/span>)<\/span>;<\/span>
      \n myDog.<\/span>printState<\/span>(<\/span>)<\/span>;<\/span>
      \n }<\/span>
      \n}<\/span><\/p>\n

      \u8fd0\u884c\u7ed3\u679c：<\/p>\n

      \u540d\u5b57: \u65fa\u8d22, \u989c\u8272: \u68d5\u8272, \u997f\u4e86\u5417: true
      \n\u65fa\u8d22 \u6c6a\u6c6a\u53eb！
      \n\u65fa\u8d22 \u5403\u9971\u4e86\u3002
      \n\u540d\u5b57: \u65fa\u8d22, \u989c\u8272: \u68d5\u8272, \u997f\u4e86\u5417: false<\/p>\n

      \u5173\u952e\u89c2\u5bdf：myDog \u5c31\u662f\u4e00\u4e2a\u5bf9\u8c61，\u5b83\u6709\u81ea\u5df1\u7684\u72b6\u6001（name\u3001color\u3001hungry），\u4e5f\u6709\u81ea\u5df1\u7684\u884c\u4e3a（bark()\u3001eat()）\u3002\u8c03\u7528 eat() \u65b9\u6cd5\u540e，\u5bf9\u8c61\u5185\u90e8\u7684 hungry \u72b6\u6001\u4ece true \u53d8\u6210\u4e86 false\u2014\u2014\u5916\u754c\u901a\u8fc7\u65b9\u6cd5\u6539\u53d8\u4e86\u5bf9\u8c61\u7684\u72b6\u6001\u3002<\/p>\n

      \n

      \u4e09\u3001\u7c7b（Class）\u2014\u2014\u5bf9\u8c61\u7684\u84dd\u56fe<\/h3>\n

      3.1 \u7c7b\u548c\u5bf9\u8c61\u7684\u5173\u7cfb<\/h4>\n

      \u7c7b\u662f\u84dd\u56fe，\u5bf9\u8c61\u662f\u6839\u636e\u84dd\u56fe\u9020\u51fa\u6765\u7684\u5b9e\u7269\u3002<\/p>\n

      \u4e00\u4efd\u84dd\u56fe\u53ef\u4ee5\u9020\u51fa\u65e0\u6570\u680b\u697c\u2014\u2014\u6bcf\u680b\u697c\u5c31\u662f\u4e00\u4e2a\u5bf9\u8c61（\u5b9e\u4f8b）\u3002\u697c\u4e0e\u697c\u4e4b\u95f4\u7ed3\u6784\u76f8\u540c，\u4f46\u4f4f\u7684\u4eba\u4e0d\u540c，\u88c5\u4fee\u4e5f\u4e0d\u540c\u2014\u2014\u6bcf\u4e2a\u5bf9\u8c61\u6709\u81ea\u5df1\u72ec\u7acb\u7684\u72b6\u6001\u3002<\/p>\n

      Java \u4e2d\u7528 class \u5173\u952e\u5b57\u5b9a\u4e49\u7c7b，\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u5bf9\u8c61：<\/p>\n

      class<\/span> Bicycle<\/span> {<\/span>
      \n \/\/ \u72b6\u6001<\/span>
      \n int<\/span> cadence =<\/span> 0<\/span>;<\/span> \/\/ \u8e0f\u9891<\/span>
      \n int<\/span> speed =<\/span> 0<\/span>;<\/span> \/\/ \u901f\u5ea6<\/span>
      \n int<\/span> gear =<\/span> 1<\/span>;<\/span> \/\/ \u6863\u4f4d<\/span><\/p>\n

      \/\/ \u884c\u4e3a<\/span>
      \n void<\/span> changeCadence<\/span>(<\/span>int<\/span> newValue)<\/span> {<\/span>
      \n cadence =<\/span> newValue;<\/span>
      \n }<\/span><\/p>\n

      void<\/span> changeGear<\/span>(<\/span>int<\/span> newValue)<\/span> {<\/span>
      \n gear =<\/span> newValue;<\/span>
      \n }<\/span><\/p>\n

      void<\/span> speedUp<\/span>(<\/span>int<\/span> increment)<\/span> {<\/span>
      \n speed =<\/span> speed +<\/span> increment;<\/span>
      \n }<\/span><\/p>\n

      void<\/span> applyBrakes<\/span>(<\/span>int<\/span> decrement)<\/span> {<\/span>
      \n speed =<\/span> speed –<\/span> decrement;<\/span>
      \n }<\/span><\/p>\n

      void<\/span> printStates<\/span>(<\/span>)<\/span> {<\/span>
      \n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u8e0f\u9891:"<\/span> +<\/span> cadence +<\/span>
      \n " \u901f\u5ea6:"<\/span> +<\/span> speed +<\/span> " \u6863\u4f4d:"<\/span> +<\/span> gear)<\/span>;<\/span>
      \n }<\/span>
      \n}<\/span><\/p>\n

      3.2 \u7c7b vs \u5bf9\u8c61：\u4e00\u4e2a\u5173\u952e\u533a\u5206<\/h4>\n

      \u5f88\u591a\u521d\u5b66\u8005\u6df7\u6dc6\u7c7b\u548c\u5bf9\u8c61\u3002\u8bb0\u4f4f\u8fd9\u4e2a\u5bf9\u6bd4：<\/p>\n\n\u7c7b（Class）\u5bf9\u8c61（Object）<\/tr>\n\n\n\n\n\n\n
      \u672c\u8d28<\/td>\n\u6a21\u677f\/\u84dd\u56fe<\/td>\n\u5177\u4f53\u7684\u5b9e\u4f53<\/td>\n<\/tr>\n
      \u6570\u91cf<\/td>\n\u5b9a\u4e49\u4e00\u6b21<\/td>\n\u53ef\u4ee5\u521b\u5efa\u65e0\u6570\u4e2a<\/td>\n<\/tr>\n
      \u5b58\u5728\u4f4d\u7f6e<\/td>\n\u6e90\u4ee3\u7801\u6587\u4ef6\u4e2d<\/td>\n\u8fd0\u884c\u65f6\u5728\u5185\u5b58\u4e2d<\/td>\n<\/tr>\n
      \u5173\u952e\u5b57<\/td>\nclass \u5b9a\u4e49<\/td>\nnew \u521b\u5efa<\/td>\n<\/tr>\n
      \u6bd4\u55bb<\/td>\n\u5efa\u7b51\u56fe\u7eb8<\/td>\n\u6839\u636e\u56fe\u7eb8\u76d6\u7684\u623f\u5b50<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      3.3 \u521b\u5efa\u591a\u4e2a\u5bf9\u8c61<\/h4>\n

      class<\/span> BicycleDemo<\/span> {<\/span>
      \n public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[<\/span>]<\/span> args)<\/span> {<\/span>
      \n \/\/ \u7528\u540c\u4e00\u4e2a\u7c7b\u521b\u5efa\u4e24\u4e2a\u4e0d\u540c\u7684\u5bf9\u8c61<\/span>
      \n Bicycle<\/span> bike1 =<\/span> new<\/span> Bicycle<\/span>(<\/span>)<\/span>;<\/span>
      \n Bicycle<\/span> bike2 =<\/span> new<\/span> Bicycle<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

      \/\/ \u5206\u522b\u64cd\u4f5c<\/span>
      \n bike1.<\/span>changeCadence<\/span>(<\/span>50<\/span>)<\/span>;<\/span>
      \n bike1.<\/span>speedUp<\/span>(<\/span>10<\/span>)<\/span>;<\/span>
      \n bike1.<\/span>changeGear<\/span>(<\/span>2<\/span>)<\/span>;<\/span>
      \n bike1.<\/span>printStates<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

      bike2.<\/span>changeCadence<\/span>(<\/span>50<\/span>)<\/span>;<\/span>
      \n bike2.<\/span>speedUp<\/span>(<\/span>10<\/span>)<\/span>;<\/span>
      \n bike2.<\/span>changeGear<\/span>(<\/span>2<\/span>)<\/span>;<\/span>
      \n bike2.<\/span>changeCadence<\/span>(<\/span>40<\/span>)<\/span>;<\/span>
      \n bike2.<\/span>speedUp<\/span>(<\/span>10<\/span>)<\/span>;<\/span>
      \n bike2.<\/span>changeGear<\/span>(<\/span>3<\/span>)<\/span>;<\/span>
      \n bike2.<\/span>printStates<\/span>(<\/span>)<\/span>;<\/span>
      \n }<\/span>
      \n}<\/span><\/p>\n

      \u8fd0\u884c\u7ed3\u679c：<\/p>\n

      \u8e0f\u9891:50 \u901f\u5ea6:10 \u6863\u4f4d:2
      \n\u8e0f\u9891:40 \u901f\u5ea6:20 \u6863\u4f4d:3<\/p>\n

      \u867d\u7136 bike1 \u548c bike2 \u90fd\u662f\u4ece Bicycle \u7c7b\u521b\u5efa\u7684，\u4f46\u5b83\u4eec\u5404\u81ea\u62e5\u6709\u72ec\u7acb\u7684\u72b6\u6001\u2014\u2014\u8c03\u7528\u4e0d\u540c\u7684\u65b9\u6cd5\u540e，\u4e24\u8f86\u8f66\u7684\u8e0f\u9891\u3001\u901f\u5ea6\u3001\u6863\u4f4d\u5b8c\u5168\u4e0d\u540c\u3002<\/p>\n

      \u26a0\ufe0f \u521d\u5b66\u8005\u5e38\u89c1\u8bef\u533a：Bicycle \u7c7b\u672c\u8eab\u6ca1\u6709 main \u65b9\u6cd5，\u5b83\u4e0d\u662f\u4e00\u4e2a\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884c\u7684\u7a0b\u5e8f\u3002\u5b83\u53ea\u662f\u84dd\u56fe，\u9700\u8981\u53e6\u4e00\u4e2a\u7c7b（\u5982 BicycleDemo）\u6765\u521b\u5efa\u5bf9\u8c61\u5e76\u4f7f\u7528\u3002<\/p>\n

      \n

      \u56db\u3001\u7ee7\u627f（Inheritance）\u2014\u2014\u4ee3\u7801\u590d\u7528\u7684\u5229\u5668<\/h3>\n

      4.1 \u4e3a\u4ec0\u4e48\u9700\u8981\u7ee7\u627f<\/h4>\n

      \u5c71\u5730\u8f66\u3001\u516c\u8def\u8f66\u3001\u53cc\u4eba\u8f66\u90fd\u662f\u81ea\u884c\u8f66\u3002\u5b83\u4eec\u5171\u4eab\u81ea\u884c\u8f66\u7684\u57fa\u672c\u7279\u5f81（\u901f\u5ea6\u3001\u8e0f\u9891\u3001\u6863\u4f4d），\u4f46\u53c8\u5404\u6709\u72ec\u7279\u4e4b\u5904：<\/p>\n

        \n
      • \u5c71\u5730\u8f66：\u6709\u907f\u9707\u3001\u53ef\u8d8a\u91ce<\/li>\n
      • \u516c\u8def\u8f66：\u8f7b\u91cf\u3001\u5f2f\u628a<\/li>\n
      • \u53cc\u4eba\u8f66：\u53cc\u5ea7\u3001\u53cc\u8f66\u628a<\/li>\n<\/ul>\n

        \u5982\u679c\u6bcf\u79cd\u8f66\u90fd\u4ece\u5934\u5199\u4ee3\u7801，\u4f1a\u6709\u5927\u91cf\u91cd\u590d\u3002\u7ee7\u627f\u8ba9\u4f60\u628a\u5171\u6709\u7684\u90e8\u5206\u653e\u5728\u7236\u7c7b\u4e2d，\u5b50\u7c7b\u53ea\u9700\u8981\u5199\u81ea\u5df1\u72ec\u6709\u7684\u90e8\u5206\u3002<\/p>\n

        4.2 Java \u7ee7\u627f\u8bed\u6cd5<\/h4>\n

        \/\/ \u7236\u7c7b（\u8d85\u7c7b）<\/span>
        \nclass<\/span> Bicycle<\/span> {<\/span>
        \n int<\/span> cadence =<\/span> 0<\/span>;<\/span>
        \n int<\/span> speed =<\/span> 0<\/span>;<\/span>
        \n int<\/span> gear =<\/span> 1<\/span>;<\/span><\/p>\n

        void<\/span> changeCadence<\/span>(<\/span>int<\/span> newValue)<\/span> {<\/span> cadence =<\/span> newValue;<\/span> }<\/span>
        \n void<\/span> changeGear<\/span>(<\/span>int<\/span> newValue)<\/span> {<\/span> gear =<\/span> newValue;<\/span> }<\/span>
        \n void<\/span> speedUp<\/span>(<\/span>int<\/span> increment)<\/span> {<\/span> speed +=<\/span> increment;<\/span> }<\/span>
        \n void<\/span> applyBrakes<\/span>(<\/span>int<\/span> decrement)<\/span> {<\/span> speed -=<\/span> decrement;<\/span> }<\/span><\/p>\n

        void<\/span> printStates<\/span>(<\/span>)<\/span> {<\/span>
        \n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u8e0f\u9891:"<\/span> +<\/span> cadence +<\/span>
        \n " \u901f\u5ea6:"<\/span> +<\/span> speed +<\/span> " \u6863\u4f4d:"<\/span> +<\/span> gear)<\/span>;<\/span>
        \n }<\/span>
        \n}<\/span><\/p>\n

        \/\/ \u5b50\u7c7b\u2014\u2014\u5c71\u5730\u8f66<\/span>
        \nclass<\/span> MountainBike<\/span> extends<\/span> Bicycle<\/span> {<\/span>
        \n String<\/span> terrain;<\/span> \/\/ \u5c71\u5730\u8f66\u72ec\u6709：\u5730\u5f62\u7c7b\u578b<\/span><\/p>\n

        void<\/span> setTerrain<\/span>(<\/span>String<\/span> newTerrain)<\/span> {<\/span>
        \n terrain =<\/span> newTerrain;<\/span>
        \n }<\/span><\/p>\n

        \/\/ \u91cd\u5199\u7236\u7c7b\u65b9\u6cd5，\u589e\u52a0\u5730\u5f62\u4fe1\u606f<\/span>
        \n void<\/span> printStates<\/span>(<\/span>)<\/span> {<\/span>
        \n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u8e0f\u9891:"<\/span> +<\/span> cadence +<\/span>
        \n " \u901f\u5ea6:"<\/span> +<\/span> speed +<\/span> " \u6863\u4f4d:"<\/span> +<\/span> gear +<\/span>
        \n " \u5730\u5f62:"<\/span> +<\/span> terrain)<\/span>;<\/span>
        \n }<\/span>
        \n}<\/span><\/p>\n

        \/\/ \u5b50\u7c7b\u2014\u2014\u516c\u8def\u8f66<\/span>
        \nclass<\/span> RoadBike<\/span> extends<\/span> Bicycle<\/span> {<\/span>
        \n int<\/span> tireWidth;<\/span> \/\/ \u516c\u8def\u8f66\u72ec\u6709：\u8f6e\u80ce\u5bbd\u5ea6（\u6beb\u7c73）<\/span><\/p>\n

        void<\/span> setTireWidth<\/span>(<\/span>int<\/span> width)<\/span> {<\/span>
        \n tireWidth =<\/span> width;<\/span>
        \n }<\/span><\/p>\n

        void<\/span> printStates<\/span>(<\/span>)<\/span> {<\/span>
        \n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u8e0f\u9891:"<\/span> +<\/span> cadence +<\/span>
        \n " \u901f\u5ea6:"<\/span> +<\/span> speed +<\/span> " \u6863\u4f4d:"<\/span> +<\/span> gear +<\/span>
        \n " \u8f6e\u80ce\u5bbd\u5ea6:"<\/span> +<\/span> tireWidth +<\/span> "mm"<\/span>)<\/span>;<\/span>
        \n }<\/span>
        \n}<\/span><\/p>\n

        class<\/span> InheritanceDemo<\/span> {<\/span>
        \n public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[<\/span>]<\/span> args)<\/span> {<\/span>
        \n MountainBike<\/span> mtb =<\/span> new<\/span> MountainBike<\/span>(<\/span>)<\/span>;<\/span>
        \n mtb.<\/span>changeCadence<\/span>(<\/span>60<\/span>)<\/span>;<\/span> \/\/ \u7ee7\u627f\u81ea Bicycle<\/span>
        \n mtb.<\/span>speedUp<\/span>(<\/span>15<\/span>)<\/span>;<\/span> \/\/ \u7ee7\u627f\u81ea Bicycle<\/span>
        \n mtb.<\/span>changeGear<\/span>(<\/span>3<\/span>)<\/span>;<\/span> \/\/ \u7ee7\u627f\u81ea Bicycle<\/span>
        \n mtb.<\/span>setTerrain<\/span>(<\/span>"\u788e\u77f3\u8def"<\/span>)<\/span>;<\/span> \/\/ MountainBike \u72ec\u6709<\/span>
        \n mtb.<\/span>printStates<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

        RoadBike<\/span> road =<\/span> new<\/span> RoadBike<\/span>(<\/span>)<\/span>;<\/span>
        \n road.<\/span>changeCadence<\/span>(<\/span>80<\/span>)<\/span>;<\/span>
        \n road.<\/span>speedUp<\/span>(<\/span>25<\/span>)<\/span>;<\/span>
        \n road.<\/span>changeGear<\/span>(<\/span>5<\/span>)<\/span>;<\/span>
        \n road.<\/span>setTireWidth<\/span>(<\/span>23<\/span>)<\/span>;<\/span> \/\/ RoadBike \u72ec\u6709<\/span>
        \n road.<\/span>printStates<\/span>(<\/span>)<\/span>;<\/span>
        \n }<\/span>
        \n}<\/span><\/p>\n

        \u8fd0\u884c\u7ed3\u679c：<\/p>\n

        \u8e0f\u9891:60 \u901f\u5ea6:15 \u6863\u4f4d:3 \u5730\u5f62:\u788e\u77f3\u8def
        \n\u8e0f\u9891:80 \u901f\u5ea6:25 \u6863\u4f4d:5 \u8f6e\u80ce\u5bbd\u5ea6:23mm<\/p>\n

        4.3 \u7ee7\u627f\u7684\u6838\u5fc3\u89c4\u5219<\/h4>\n\n\u89c4\u5219\u8bf4\u660e<\/tr>\n\n\n\n\n\n
        \u5355\u7ee7\u627f<\/td>\nJava \u4e2d\u6bcf\u4e2a\u7c7b\u53ea\u80fd\u6709\u4e00\u4e2a\u76f4\u63a5\u7236\u7c7b<\/td>\n<\/tr>\n
        \u65e0\u9650\u5b50\u7c7b<\/td>\n\u4e00\u4e2a\u7236\u7c7b\u53ef\u4ee5\u6709\u4efb\u610f\u591a\u4e2a\u5b50\u7c7b<\/td>\n<\/tr>\n
        \u4f20\u9012\u6027<\/td>\n\u5b50\u7c7b\u7684\u5b50\u7c7b\u4e5f\u80fd\u7ee7\u627f\u7956\u7236\u7c7b\u7684\u5185\u5bb9<\/td>\n<\/tr>\n
        \u5173\u952e\u5b57<\/td>\n\u7528 extends \u58f0\u660e\u7ee7\u627f\u5173\u7cfb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        4.4 \u7ee7\u627f\u7684\u672c\u8d28\u662f"\u662f\u4e00\u79cd（is-a）"\u5173\u7cfb<\/h4>\n

        \u5224\u65ad\u8be5\u4e0d\u8be5\u7528\u7ee7\u627f，\u95ee\u81ea\u5df1\u4e00\u4e2a\u95ee\u9898：\u201c\u5b50\u7c7b\u662f\u4e00\u79cd\u7236\u7c7b\u5417？\u201d<\/p>\n

          \n
        • \u5c71\u5730\u8f66\u662f\u4e00\u79cd\u81ea\u884c\u8f66 \u2705 \u2192 \u53ef\u4ee5\u7ee7\u627f<\/li>\n
        • \u5f15\u64ce\u4e0d\u662f\u4e00\u79cd\u6c7d\u8f66 \u274c \u2192 \u4e0d\u8be5\u7ee7\u627f，\u5e94\u8be5\u7528"\u5305\u542b（has-a）"\u5173\u7cfb<\/li>\n<\/ul>\n

          \u8fd9\u4e2a\u5224\u65ad\u6807\u51c6\u5728\u9762\u8bd5\u4e2d\u7ecf\u5e38\u8003\u5230\u3002<\/p>\n

          \n

          \u4e94\u3001\u63a5\u53e3（Interface）\u2014\u2014\u884c\u4e3a\u7684\u5951\u7ea6<\/h3>\n

          5.1 \u63a5\u53e3\u662f\u4ec0\u4e48<\/h4>\n

          \u63a5\u53e3\u5b9a\u4e49\u4e86\u4e00\u7ec4\u65b9\u6cd5\u7b7e\u540d，\u4f46\u4e0d\u63d0\u4f9b\u5b9e\u73b0\u3002\u5b83\u76f8\u5f53\u4e8e\u4e00\u4efd\u5408\u540c：\u201c\u4f60\u8981\u7528\u6211，\u5c31\u5fc5\u987b\u5b9e\u73b0\u8fd9\u4e9b\u65b9\u6cd5\u3002\u201d<\/p>\n

          interface<\/span> Bicycle<\/span> {<\/span>
          \n void<\/span> changeCadence<\/span>(<\/span>int<\/span> newValue)<\/span>;<\/span>
          \n void<\/span> changeGear<\/span>(<\/span>int<\/span> newValue)<\/span>;<\/span>
          \n void<\/span> speedUp<\/span>(<\/span>int<\/span> increment)<\/span>;<\/span>
          \n void<\/span> applyBrakes<\/span>(<\/span>int<\/span> decrement)<\/span>;<\/span>
          \n}<\/span><\/p>\n

          5.2 \u5b9e\u73b0\u63a5\u53e3<\/h4>\n

          \u7528 implements \u5173\u952e\u5b57\u5b9e\u73b0\u63a5\u53e3，\u7c7b\u5fc5\u987b\u63d0\u4f9b\u63a5\u53e3\u4e2d\u6240\u6709\u65b9\u6cd5\u7684\u5177\u4f53\u5b9e\u73b0：<\/p>\n

          class<\/span> ACMEBicycle<\/span> implements<\/span> Bicycle<\/span> {<\/span>
          \n int<\/span> cadence =<\/span> 0<\/span>;<\/span>
          \n int<\/span> speed =<\/span> 0<\/span>;<\/span>
          \n int<\/span> gear =<\/span> 1<\/span>;<\/span><\/p>\n

          public<\/span> void<\/span> changeCadence<\/span>(<\/span>int<\/span> newValue)<\/span> {<\/span>
          \n cadence =<\/span> newValue;<\/span>
          \n }<\/span><\/p>\n

          public<\/span> void<\/span> changeGear<\/span>(<\/span>int<\/span> newValue)<\/span> {<\/span>
          \n gear =<\/span> newValue;<\/span>
          \n }<\/span><\/p>\n

          public<\/span> void<\/span> speedUp<\/span>(<\/span>int<\/span> increment)<\/span> {<\/span>
          \n speed =<\/span> speed +<\/span> increment;<\/span>
          \n }<\/span><\/p>\n

          public<\/span> void<\/span> applyBrakes<\/span>(<\/span>int<\/span> decrement)<\/span> {<\/span>
          \n speed =<\/span> speed –<\/span> decrement;<\/span>
          \n }<\/span><\/p>\n

          public<\/span> void<\/span> printStates<\/span>(<\/span>)<\/span> {<\/span>
          \n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u8e0f\u9891:"<\/span> +<\/span> cadence +<\/span>
          \n " \u901f\u5ea6:"<\/span> +<\/span> speed +<\/span> " \u6863\u4f4d:"<\/span> +<\/span> gear)<\/span>;<\/span>
          \n }<\/span>
          \n}<\/span><\/p>\n

          \u6ce8\u610f：\u5b9e\u73b0\u63a5\u53e3\u65b9\u6cd5\u65f6\u5fc5\u987b\u52a0 public \u5173\u952e\u5b57（\u8fd9\u662f Java \u7684\u89c4\u5b9a，\u63a5\u53e3\u65b9\u6cd5\u9ed8\u8ba4\u662f public \u7684）\u3002<\/p>\n

          5.3 \u63a5\u53e3 vs \u62bd\u8c61\u7c7b\u2014\u2014\u9762\u8bd5\u5fc5\u8003<\/h4>\n

          \u8fd9\u662f\u540e\u7eed\u7ae0\u8282\u4f1a\u6df1\u5165\u8bb2\u7684\u5185\u5bb9，\u8fd9\u91cc\u5148\u7ed9\u4e2a\u7b80\u8981\u5bf9\u6bd4：<\/p>\n\n\u7ef4\u5ea6\u63a5\u53e3（Interface）\u62bd\u8c61\u7c7b（Abstract Class）<\/tr>\n\n\n\n\n\n\n
          \u5173\u952e\u5b57<\/td>\ninterface \/ implements<\/td>\nabstract class \/ extends<\/td>\n<\/tr>\n
          \u591a\u91cd\u5b9e\u73b0<\/td>\n\u4e00\u4e2a\u7c7b\u53ef\u4ee5\u5b9e\u73b0\u591a\u4e2a\u63a5\u53e3<\/td>\n\u53ea\u80fd\u7ee7\u627f\u4e00\u4e2a\u62bd\u8c61\u7c7b<\/td>\n<\/tr>\n
          \u65b9\u6cd5\u4f53<\/td>\nJDK 8 \u524d\u4e0d\u80fd\u6709；JDK 8 \u8d77\u53ef\u4ee5\u6709 default \u65b9\u6cd5<\/td>\n\u53ef\u4ee5\u6709\u62bd\u8c61\u65b9\u6cd5\u548c\u666e\u901a\u65b9\u6cd5<\/td>\n<\/tr>\n
          \u5b57\u6bb5<\/td>\n\u53ea\u80fd\u662f public static final \u5e38\u91cf<\/td>\n\u53ef\u4ee5\u6709\u5404\u79cd\u5b57\u6bb5<\/td>\n<\/tr>\n
          \u8bbe\u8ba1\u8bed\u4e49<\/td>\n\u201c\u80fd\u505a\u4ec0\u4e48\u201d（can-do）<\/td>\n\u201c\u662f\u4ec0\u4e48\u201d（is-a）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u9762\u8bd5\u65f6\u5e38\u88ab\u95ee\u5230"\u4ec0\u4e48\u65f6\u5019\u7528\u63a5\u53e3，\u4ec0\u4e48\u65f6\u5019\u7528\u62bd\u8c61\u7c7b"，\u7b54\u9898\u601d\u8def：\u9700\u8981\u591a\u91cd\u7ee7\u627f\u80fd\u529b\u6216\u8005\u5b9a\u4e49\u8de8\u7c7b\u65cf\u7684\u901a\u7528\u884c\u4e3a\u65f6\u7528\u63a5\u53e3；\u9700\u8981\u5171\u4eab\u4ee3\u7801\u548c\u72b6\u6001\u65f6\u7528\u62bd\u8c61\u7c7b\u3002<\/p>\n

          \n

          \u516d\u3001\u5305（Package）\u2014\u2014\u4ee3\u7801\u7684\u7ec4\u7ec7\u7ed3\u6784<\/h3>\n

          6.1 \u4e3a\u4ec0\u4e48\u9700\u8981\u5305<\/h4>\n

          \u4e00\u4e2a\u5927\u578b Java \u9879\u76ee\u53ef\u80fd\u6709\u6210\u767e\u4e0a\u5343\u4e2a\u7c7b\u3002\u5982\u679c\u6240\u6709\u7c7b\u90fd\u5806\u5728\u4e00\u8d77，\u5c31\u50cf\u628a\u4e00\u4e07\u672c\u4e66\u90fd\u6254\u5728\u5730\u4e0a\u2014\u2014\u6839\u672c\u627e\u4e0d\u5230\u4f60\u8981\u7684\u3002<\/p>\n

          \u5305\u5c31\u662f\u6587\u4ef6\u5939，\u7528\u6765\u5206\u95e8\u522b\u7c7b\u5730\u7ec4\u7ec7\u4f60\u7684\u4ee3\u7801\u3002Java \u5e73\u53f0\u81ea\u8eab\u5c31\u7528\u5305\u6765\u7ec4\u7ec7 API：<\/p>\n\n\u5305\u540d\u7528\u9014\u5e38\u7528\u7c7b<\/tr>\n\n\n\n\n\n
          java.lang<\/td>\n\u8bed\u8a00\u6838\u5fc3（\u81ea\u52a8\u5bfc\u5165）<\/td>\nString\u3001Math\u3001System<\/td>\n<\/tr>\n
          java.util<\/td>\n\u5de5\u5177\u7c7b\u548c\u96c6\u5408<\/td>\nArrayList\u3001HashMap\u3001Scanner<\/td>\n<\/tr>\n
          java.io<\/td>\n\u6587\u4ef6\u548c\u6d41\u64cd\u4f5c<\/td>\nFile\u3001InputStream\u3001BufferedReader<\/td>\n<\/tr>\n
          java.net<\/td>\n\u7f51\u7edc\u7f16\u7a0b<\/td>\nSocket\u3001URL\u3001HttpURLConnection<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          6.2 \u5305\u7684\u4e24\u5927\u4f5c\u7528<\/h4>\n
        • \u7ec4\u7ec7\u7ba1\u7406：\u76f8\u5173\u7c7b\u653e\u5728\u540c\u4e00\u4e2a\u5305\u4e2d，\u7ed3\u6784\u6e05\u6670<\/li>\n
        • \u907f\u514d\u547d\u540d\u51b2\u7a81：\u4e24\u4e2a\u4e0d\u540c\u5305\u91cc\u53ef\u4ee5\u6709\u540c\u540d\u7c7b，\u6bd4\u5982 java.util.Date \u548c java.sql.Date \u53ef\u4ee5\u5171\u5b58<\/li>\n

          6.3 Java API \u6587\u6863\u2014\u2014\u7a0b\u5e8f\u5458\u7684\u5b57\u5178<\/h4>\n

          Java \u5e73\u53f0\u63d0\u4f9b\u4e86\u6d77\u91cf\u7684\u73b0\u6210\u7c7b\u5e93，\u88ab\u79f0\u4e3a API（Application Programming Interface，\u5e94\u7528\u7f16\u7a0b\u63a5\u53e3）\u3002\u5b66\u4f1a\u67e5\u9605 Java API \u6587\u6863\u662f\u6bcf\u4e2a Java \u5f00\u53d1\u8005\u7684\u5fc5\u5907\u6280\u80fd\u3002<\/p>\n

          JDK 8 API \u6587\u6863\u5730\u5740：https:\/\/docs.oracle.com\/javase\/8\/docs\/api\/<\/p>\n

          \u5efa\u8bae\u6536\u85cf\u8fd9\u4e2a\u5730\u5740\u2014\u2014\u5b83\u5c06\u6210\u4e3a\u4f60\u7f16\u7a0b\u751f\u6daf\u4e2d\u7528\u5f97\u6700\u591a\u7684\u53c2\u8003\u6587\u6863\u3002<\/p>\n

          \n

          \u4e03\u3001\u4e94\u5927\u6982\u5ff5\u603b\u7ed3\u901f\u67e5<\/h3>\n\n\u6982\u5ff5\u5173\u952e\u5b57\u6838\u5fc3\u4f5c\u7528\u4e00\u53e5\u8bdd\u8bb0\u5fc6<\/tr>\n\n\n\n\n\n\n
          \u5bf9\u8c61<\/td>\nnew \u521b\u5efa<\/td>\n\u5c01\u88c5\u72b6\u6001\u548c\u884c\u4e3a<\/td>\n\u5e26\u6309\u94ae\u7684\u50a8\u7269\u67dc<\/td>\n<\/tr>\n
          \u7c7b<\/td>\nclass \u5b9a\u4e49<\/td>\n\u521b\u5efa\u5bf9\u8c61\u7684\u84dd\u56fe<\/td>\n\u5efa\u7b51\u56fe\u7eb8<\/td>\n<\/tr>\n
          \u7ee7\u627f<\/td>\nextends<\/td>\n\u5b50\u7c7b\u590d\u7528\u7236\u7c7b\u4ee3\u7801<\/td>\n\u5b69\u5b50\u7ee7\u627f\u7236\u6bcd\u57fa\u56e0<\/td>\n<\/tr>\n
          \u63a5\u53e3<\/td>\ninterface \/ implements<\/td>\n\u5b9a\u4e49\u884c\u4e3a\u5951\u7ea6<\/td>\n\u627f\u8bfa\u4e66<\/td>\n<\/tr>\n
          \u5305<\/td>\npackage \/ import<\/td>\n\u7ec4\u7ec7\u4ee3\u7801\u547d\u540d\u7a7a\u95f4<\/td>\n\u56fe\u4e66\u9986\u5206\u7c7b\u4e66\u67b6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
          \n

          🔥 \u83b7\u53d6\u5b8c\u6574\u6e90\u7801 + \u66f4\u591a\u72ec\u5bb6\u5185\u5bb9<\/p>\n

          \u5173\u6ce8\u516c\u4f17\u53f7\u300cIT\u63a2\u9669\u5bb6\u300d，\u56de\u590d\u300cOOP\u300d\u83b7\u53d6\u672c\u6587\u5b8c\u6574\u4ee3\u7801 + Java \u9762\u5411\u5bf9\u8c61\u901f\u67e5\u624b\u518c<\/p>\n

          💎 \u52a0\u5165\u77e5\u8bc6\u661f\u7403\u300cIT\u63a2\u9669\u5bb6\u00b7\u8fdb\u9636\u5708\u300d，\u83b7\u53d6：\u7cfb\u7edf\u5b66\u4e60\u8def\u7ebf + \u5b8c\u6574\u9879\u76ee\u6e90\u7801 + \u4e13\u5c5e\u7b54\u7591<\/p>\n","protected":false},"excerpt":{"rendered":"

          \u4f60\u662f\u5426\u521a\u63a5\u89e6 Java，\u770b\u5230 class\u3001extends\u3001implements \u8fd9\u4e9b\u5173\u952e\u5b57\u5c31\u4e00\u5934\u96fe\u6c34？\u6216\u8005\u4f60\u5df2\u7ecf\u80fd\u5199\u7b80\u5355\u7a0b\u5e8f，\u4f46\u603b\u89c9\u5f97\u5bf9\u9762\u5411\u5bf9\u8c61\\”\u4f3c\u61c2\u975e\u61c2\\”？
          \n\u8fd9\u7bc7\u6587\u7ae0\u4f1a\u4ece\u96f6\u57fa\u7840\u51fa\u53d1，\u7528\u5927\u91cf\u751f\u6d3b\u5316\u6bd4\u55bb\u548c\u5b8c\u6574\u53ef\u8fd0\u884c\u7684\u4ee3\u7801，\u5e2e\u4f60\u4e00\u6b21\u6027\u5403\u900f Java \u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u4e94\u5927\u6838\u5fc3\u6982\u5ff5\u3002\u6bcf\u4e2a\u6982\u5ff5\u90fd\u914d\u6709\u4ee3\u7801\u5b9e\u6218，\u8bfb\u5b8c\u5373\u53ef\u52a8\u624b\u3002\u4e00\u3001\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u5230\u5e95\u662f\u4ec0\u4e48
          \n\u5728\u5199\u4ee3\u7801\u4e4b\u524d，\u4f60\u9700\u8981\u5148\u7406\u89e3\u4e00<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,190],"topic":[],"class_list":["post-78209","post","type-post","status-publish","format-standard","hentry","category-server","tag-java","tag-190"],"yoast_head":"\nJava \u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u5b8c\u5168\u5165\u95e8\uff1a\u5bf9\u8c61\u3001\u7c7b\u3001\u7ee7\u627f\u3001\u63a5\u53e3\u3001\u5305 \u4e94\u5927\u6838\u5fc3\u6982\u5ff5\u4e00\u6587\u901a\u900f - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/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.wsisp.com\/helps\/78209.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java \u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u5b8c\u5168\u5165\u95e8\uff1a\u5bf9\u8c61\u3001\u7c7b\u3001\u7ee7\u627f\u3001\u63a5\u53e3\u3001\u5305 \u4e94\u5927\u6838\u5fc3\u6982\u5ff5\u4e00\u6587\u901a\u900f - 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