{"id":571,"date":"2015-04-23T11:38:54","date_gmt":"2015-04-23T03:38:54","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=571"},"modified":"2026-08-18T12:09:31","modified_gmt":"2026-08-18T04:09:31","slug":"java%e5%9f%ba%e7%a1%80%e7%9f%a5%e8%af%86%e6%80%bb%e7%bb%93","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=571","title":{"rendered":"Java\u57fa\u7840\u77e5\u8bc6\u603b\u7ed3"},"content":{"rendered":"
\n

\u8fd9\u7bc7\u662f Java \u57fa\u7840\u8bfe\u7684\u77e5\u8bc6\u70b9\u63d0\u7eb2<\/strong>\uff1a\u4ece\u6982\u8ff0\u3001\u7c7b\u578b\u4e0e\u8fd0\u7b97\uff0c\u5230\u7c7b\u4e0e\u5bf9\u8c61\u3001\u7ee7\u627f\u591a\u6001\u3001\u96c6\u5408\u3001\u5f02\u5e38\u3001I\/O \u548c\u7ebf\u7a0b\u3002\u9002\u5408\u5bf9\u7167\u590d\u4e60\uff0c\u4e0d\u66ff\u4ee3\u9010\u7ae0\u4f8b\u9898\u3002<\/p>\n

\u5b8c\u6574\u8bfe\u4ef6\u5165\u53e3\uff1aJava\u57fa\u7840\u8bfe\u7a0b<\/a>\u3002<\/p>\n

\"0312\"<\/a><\/p>\n

\u4e00\u3001Java \u6982\u8ff0<\/h2>\n
    \n
  • \n
    Java \u4ecb\u7ecd<\/section>\n<\/li>\n
  • \n
    \u5f00\u53d1\u73af\u5883\uff1aJDK\u3001\u73af\u5883\u53d8\u91cf\u3001Eclipse<\/section>\n<\/li>\n
  • \n
    \u7b2c\u4e00\u4e2a Java \u7a0b\u5e8f\u600e\u4e48\u62c6\u5f00\u770b<\/section>\n<\/li>\n<\/ul>\n

    \u4e8c\u3001\u57fa\u672c\u6570\u636e\u7c7b\u578b\u4e0e\u8fd0\u7b97\u7b26<\/h2>\n
      \n
    • \n
      \u57fa\u672c\u7c7b\u578b\uff1abyte short int long float double boolean char<\/code><\/section>\n<\/li>\n
    • \n
      \u7c7b\u578b\u8f6c\u6362\u3001\u5236\u8868\u7b26\u3001\u8fdb\u5236<\/section>\n<\/li>\n
    • \n
      \u7b97\u672f \/ \u5173\u7cfb \/ \u903b\u8f91 \/ \u4f4d\u8fd0\u7b97\uff0c\u4ee5\u53ca\u6761\u4ef6\u8fd0\u7b97 a ? b : c<\/code><\/section>\n<\/li>\n<\/ul>\n

      \u4e09\u5143\u8fd0\u7b97\u7b26\u53ef\u4ee5\u5199\u6210\u7b49\u4ef7\u7684 if\uff1a<\/p>\n

      a ? b : c  <=>\nif (a) {\n    b;\n} else {\n    c;\n}<\/code><\/pre>\n
      \u4e09\u3001\u6d41\u7a0b\u63a7\u5236\u8bed\u53e5<\/h2>\n
        \n
      • \n
        \u5206\u652f\uff1aif<\/code>\uff0c\u591a\u5206\u652f\uff1aswitch<\/code><\/section>\n<\/li>\n
      • \n
        \u5faa\u73af\uff1awhile<\/code>\u3001do-while<\/code>\u3001for<\/code><\/section>\n<\/li>\n
      • \n
        \u8df3\u8f6c\uff1abreak<\/code>\u3001continue<\/code>\u3001return<\/code><\/section>\n<\/li>\n<\/ul>\n
        \u56db\u3001Java \u7c7b\u4e0e\u5bf9\u8c61<\/h2>\n
          \n
        • \n
          \u5982\u4f55\u5b9a\u4e49\u7c7b\u3001\u6210\u5458\u53d8\u91cf\u3001\u65b9\u6cd5\u3001\u6784\u9020\u65b9\u6cd5<\/section>\n<\/li>\n
        • \n
          \u5bf9\u8c61\u5b9e\u4f8b\u5316 new<\/code>\uff0c\u518d\u8c03\u7528\u5c5e\u6027\u548c\u65b9\u6cd5<\/section>\n<\/li>\n
        • \n
          String<\/code> \u4e0e StringBuffer<\/code><\/section>\n<\/li>\n
        • \n
          \u8bbf\u95ee\u4fee\u9970\u7b26\uff1b\u53d8\u91cf\u53ca\u5176\u4f5c\u7528\u57df<\/section>\n<\/li>\n<\/ul>\n\n\n\n\n\n\n\n\n
          \u4fee\u9970\u7b26<\/th>\n\u672c\u7c7b<\/th>\n\u5b50\u7c7b<\/th>\n\u540c\u4e00\u5305<\/th>\n\u4e0d\u540c\u5305<\/th>\n<\/tr>\n<\/thead>\n
          public<\/code><\/td>\nyes<\/td>\nyes<\/td>\nyes<\/td>\nyes<\/td>\n<\/tr>\n
          private<\/code><\/td>\nyes<\/td>\nno<\/td>\nno<\/td>\nno<\/td>\n<\/tr>\n
          \u7f3a\u7701\uff08\u4e0d\u5199\uff09<\/td>\nyes<\/td>\nno<\/td>\nyes<\/td>\nno<\/td>\n<\/tr>\n
          protected<\/code><\/td>\nyes<\/td>\nyes<\/td>\nyes<\/td>\nno<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
          \u4e94\u3001\u7ee7\u627f\u4e0e\u591a\u6001<\/h2>\n
            \n
          • \n
            this<\/code>\uff1b\u65b9\u6cd5\u91cd\u8f7d\uff1b\u7c7b\u65b9\u6cd5 \/ \u6784\u9020\u65b9\u6cd5\u91cd\u8f7d<\/section>\n<\/li>\n
          • \n
            \u5305\u88c5\u7c7b\uff0c\u4ee5\u53ca int<\/code> \u2194 Integer<\/code> \u7684\u8f6c\u6362<\/section>\n<\/li>\n
          • \n
            \u7ee7\u627f\uff0c\u4ee5\u53ca\u7ee7\u627f\u4e2d\u7684\u91cd\u8f7d\uff1bsuper<\/code> \u5173\u952e\u5b57<\/section>\n<\/li>\n<\/ul>\n
            \u516d\u3001\u9762\u5411\u5bf9\u8c61\u9ad8\u7ea7\u7279\u6027<\/h2>\n
            \u4e09\u5927\u7279\u6027\uff1a\u5c01\u88c5\u3001\u7ee7\u627f\u3001\u591a\u6001<\/strong>\uff08\u540c\u4e00\u7c7b\u91cc\u7684\u65b9\u6cd5\u91cd\u8f7d\uff0c\u7ee7\u627f\u91cc\u7684\u91cd\u8f7d\u548c\u8986\u76d6\uff09\u3002<\/p>\n
              \n
            • \n
              \u8bbf\u95ee\u4fee\u9970\u7b26\uff1b\u975e\u8bbf\u95ee\u4fee\u9970\u7b26 static<\/code>\u3001final<\/code><\/section>\n<\/li>\n
            • \n
              class<\/code> \/ \u62bd\u8c61\u7c7b abstract<\/code> \/ \u63a5\u53e3 interface<\/code><\/section>\n<\/li>\n
            • \n
              \u5185\u90e8\u7c7b\uff1a\u6210\u5458\u5185\u90e8\u7c7b\u3001\u5c40\u90e8\u5185\u90e8\u7c7b\u3001\u533f\u540d\u5185\u90e8\u7c7b<\/section>\n<\/li>\n<\/ul>\n
              \u4e03\u3001\u96c6\u5408\u7c7b<\/h2>\n
              \u6570\u7ec4\u58f0\u660e\u4e0e\u521d\u59cb\u5316\uff1a<\/p>\n
              int[] array;\nint[] array = {2, 3, 4, 5};\nint[] array = new int[5];\narray[0] = 2;\narray[3] = 5;<\/code><\/pre>\n
              ArrayList<\/code> \u4e0e HashMap<\/code> \u7684\u5e38\u7528\u64cd\u4f5c\uff1a<\/p>\n
              ArrayList list = new ArrayList();\nlist.add(2);\nlist.remove(1);\nlist.get(0);\n\nHashMap map = new HashMap();\nmap.put(\"key\", \"value\");\nvalue = map.get(\"key\");<\/code><\/pre>\n
              \u516b\u3001\u5f02\u5e38\u5904\u7406<\/h2>\n
                \n
              • \n
                \u7a0b\u5e8f\u9519\u8bef\u4e09\u79cd\uff1a\u7f16\u8bd1\u9519\u8bef\u3001\u903b\u8f91\u9519\u8bef\u3001\u8fd0\u884c\u65f6\u9519\u8bef<\/section>\n<\/li>\n
              • \n
                \u8fd0\u884c\u65f6\uff1a\u865a\u62df\u673a\u5185\u90e8 Error<\/code>\uff1b\u6807\u51c6 Exception<\/code>\uff1b\u81ea\u5b9a\u4e49\u5f02\u5e38<\/section>\n<\/li>\n
              • \n
                \u629b\u51fa\uff1a\u7cfb\u7edf\u629b\u51fa\uff0c\u6216\u65b9\u6cd5\u5934 throws<\/code>\u3001\u65b9\u6cd5\u4f53 throw<\/code><\/section>\n<\/li>\n
              • \n
                \u6355\u83b7\uff1atry-catch-finally<\/code>\uff1b\u4e5f\u53ef\u81ea\u5df1\u5199\u5f02\u5e38\u7c7b<\/section>\n<\/li>\n<\/ul>\n
                \u4e5d\u3001\u8f93\u5165\u8f93\u51fa I\/O<\/h2>\n
                \u6309\u65b9\u5411\u5206\u8f93\u5165\u6d41 \/ \u8f93\u51fa\u6d41<\/strong>\uff1a\u8f93\u51fa\u6d41\u5f80\u5b58\u50a8\u4ecb\u8d28\u6216\u901a\u9053\u5199\uff0c\u8f93\u5165\u6d41\u4ece\u4ecb\u8d28\u6216\u901a\u9053\u8bfb\u3002\u6309\u7c7b\u578b\u5206\u5b57\u8282\u6d41 \/ \u5b57\u7b26\u6d41<\/strong>\u3002<\/p>\n
                  \n
                • \n
                  \u7f13\u51b2\u6d41<\/section>\n<\/li>\n
                • \n
                  InputStream<\/code> \/ OutputStream<\/code><\/section>\n<\/li>\n
                • \n
                  Reader<\/code> \/ Writer<\/code>\uff08FileReader<\/code>\u3001FileWriter<\/code>\u3001BufferedReader<\/code>\u3001BufferedWriter<\/code>\uff09<\/section>\n<\/li>\n
                • \n
                  File<\/code><\/section>\n<\/li>\n<\/ul>\n
                  \u5341\u3001\u7ebf\u7a0b\u4e0e\u5e76\u53d1<\/h2>\n
                    \n
                  • \n
                    \u7ebf\u7a0b\u6982\u8ff0\uff1b\u5b9e\u73b0\uff1aextends Thread<\/code> \u6216 implements Runnable<\/code><\/section>\n<\/li>\n
                  • \n
                    \u4e3b\u7ebf\u7a0b\u4e0e\u5b50\u7ebf\u7a0b\u3001\u7ebf\u7a0b\u72b6\u6001\u3001\u4f18\u5148\u7ea7<\/section>\n<\/li>\n
                  • \n
                    \u540c\u6b65\uff1asynchronized<\/code>\uff1b\u901a\u4fe1\uff1await<\/code> \/ notify<\/code> \/ notifyAll<\/code><\/section>\n<\/li>\n<\/ul>\n
                    \n
                    \u4e00\u53e5\u8bdd\u603b\u7ed3\uff1a\u5148\u628a\u7c7b\u578b\u3001\u5bf9\u8c61\u3001\u7ee7\u627f\u3001\u96c6\u5408\u3001\u5f02\u5e38\u3001I\/O\u3001\u7ebf\u7a0b\u8fd9\u5341\u6761\u63d0\u7eb2\u4e32\u8d77\u6765\uff0c\u518d\u56de\u5934\u8865\u4f8b\u5b50\uff0c\u57fa\u7840\u8bfe\u624d\u7b97\u8fc7\u5b8c\u3002<\/strong><\/p>\n<\/blockquote>\n<\/section>\n","protected":false},"excerpt":{"rendered":"
                    \u8fd9\u7bc7\u662f Java \u57fa\u7840\u8bfe\u7684\u77e5\u8bc6\u70b9\u63d0\u7eb2\uff1a\u4ece\u6982\u8ff0\u3001\u7c7b\u578b\u4e0e\u8fd0\u7b97\uff0c\u5230\u7c7b\u4e0e\u5bf9\u8c61\u3001\u7ee7\u627f\u591a\u6001\u3001\u96c6\u5408\u3001\u5f02\u5e38\u3001I\/O \u548c\u7ebf\u7a0b\u3002\u9002 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[14],"tags":[181],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/571"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=571"}],"version-history":[{"count":3,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/571\/revisions"}],"predecessor-version":[{"id":3735,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/571\/revisions\/3735"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=571"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=571"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}