{"id":202956,"date":"2025-05-22T10:37:05","date_gmt":"2025-05-22T02:37:05","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202956\/"},"modified":"2025-05-22T10:37:05","modified_gmt":"2025-05-22T02:37:05","slug":"%e9%ab%98%e9%98%b6%e5%87%bd%e6%95%b0%e5%9c%a8-java-%e4%b8%ad%e7%9a%84%e4%bc%98%e7%82%b9%e5%92%8c%e7%bc%ba%e7%82%b9%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202956\/","title":{"rendered":"\u9ad8\u9636\u51fd\u6570\u5728 Java \u4e2d\u7684\u4f18\u70b9\u548c\u7f3a\u70b9\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u9ad8\u9636\u51fd\u6570\u5728 Java \u4e2d\u7684\u4f18\u70b9\u548c\u7f3a\u70b9\u6709\u54ea\u4e9b\uff1f<\/h1>\n<p><span style=\"color: #222222;, sans-serif;background-color: #FFFFFF\">\u5404\u4f4d\u5c0f\u4f19\u4f34\u4eec\uff0c\u5927\u5bb6\u597d\u5440\uff01\u770b\u770b\u4eca\u5929\u6211\u53c8\u7ed9\u5404\u4f4d\u5e26\u6765\u4e86\u4ec0\u4e48\u6587\u7ae0\uff1f\u672c\u6587\u6807\u9898<span style=\"color: #222222;, sans-serif;background-color: #FFFFFF\">\u662f<\/span><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u9ad8\u9636\u51fd\u6570\u5728 Java \u4e2d\u7684\u4f18\u70b9\u548c\u7f3a\u70b9\u6709\u54ea\u4e9b\uff1f\u300b<\/span>\uff0c\u5f88\u660e\u663e\u662f\u5173\u4e8e<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u7684\u6587\u7ae0\u54c8\u54c8\u54c8\uff0c\u5176\u4e2d\u5185\u5bb9\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u5982\u679c\u80fd\u5e2e\u5230\u4f60\uff0c\u89c9\u5f97\u5f88\u4e0d\u9519\u7684\u8bdd\uff0c\u6b22\u8fce\u5404\u4f4d\u591a\u591a\u70b9\u8bc4\u548c\u5206\u4eab\uff01<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730005707671dcacba9b2b.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u4e2d\u9ad8\u9636\u51fd\u6570\u7684\u4f18\u70b9\u548c\u7f3a\u70b9<\/strong><\/p>\n<p><strong>\u4f18\u70b9<\/strong><\/p>\n<ul>\n<li><strong>\u4ee3\u7801\u53ef\u91cd\u7528\u6027\uff1a<\/strong>\u9ad8\u9636\u51fd\u6570\u5141\u8bb8\u5c06\u901a\u7528\u64cd\u4f5c\u5c01\u88c5\u6210\u53ef\u91cd\u590d\u4f7f\u7528\u7684\u51fd\u6570\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u91cd\u7528\u6027\u548c\u7b80\u6d01\u6027\u3002<\/li>\n<li><strong>\u51fd\u6570\u5f0f\u7f16\u7a0b\uff1a<\/strong>\u9ad8\u9636\u51fd\u6570\u662f\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u57fa\u7840\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u66f4\u58f0\u660e\u6027\u7684\u7f16\u7a0b\u65b9\u5f0f\uff0c\u5c06\u91cd\u70b9\u653e\u5728\u6570\u636e\u8f6c\u6362\u800c\u4e0d\u662f\u53ef\u53d8\u72b6\u6001\u4e0a\u3002<\/li>\n<li><strong>\u7b80\u5316\u4ee3\u7801\uff1a<\/strong>\u4f7f\u7528\u9ad8\u9636\u51fd\u6570\u53ef\u4ee5\u7b80\u5316\u590d\u6742\u4efb\u52a1\u7684\u4ee3\u7801\uff0c\u4f7f\u5176\u66f4\u6613\u4e8e\u7406\u89e3\u548c\u7ef4\u62a4\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u6027\u80fd\uff1a<\/strong>\u9ad8\u9636\u51fd\u6570\u53ef\u4ee5\u5e76\u884c\u6267\u884c\uff0c\u4ece\u800c\u63d0\u9ad8\u67d0\u4e9b\u64cd\u4f5c\u7684\u6027\u80fd\u3002<\/li>\n<\/ul>\n<p><strong>\u7f3a\u70b9<\/strong><\/p>\n<ul>\n<li><strong>\u5b66\u4e60\u66f2\u7ebf\uff1a<\/strong>\u9ad8\u9636\u51fd\u6570\u7684\u6982\u5ff5\u53ef\u80fd\u5bf9\u521d\u5b66\u8005\u6765\u8bf4\u6709\u70b9\u590d\u6742\uff0c\u9700\u8981\u4e00\u4e9b\u65f6\u95f4\u6765\u5b66\u4e60\u548c\u7406\u89e3\u3002<\/li>\n<li><strong>\u8c03\u8bd5\u56f0\u96be\uff1a<\/strong>\u7531\u4e8e\u9ad8\u9636\u51fd\u6570\u7684\u5d4c\u5957\u672c\u8d28\uff0c\u8c03\u8bd5\u53ef\u80fd\u6210\u4e3a\u4e00\u4e2a\u6311\u6218\uff0c\u9700\u8981\u4f7f\u7528\u4e13\u95e8\u7684\u8c03\u8bd5\u5de5\u5177\u3002<\/li>\n<li><strong>\u4ee3\u7801\u6df7\u4e71\uff1a<\/strong>\u5982\u679c\u4f7f\u7528\u4e0d\u5f53\uff0c\u9ad8\u9636\u51fd\u6570\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4ee3\u7801\u53d8\u5f97\u96be\u4ee5\u7406\u89e3\u548c\u7ef4\u62a4\u3002<\/li>\n<li><strong>\u5185\u5b58\u5360\u7528\uff1a<\/strong>\u521b\u5efa\u548c\u5b58\u50a8\u9ad8\u9636\u51fd\u6570\u9700\u8981\u989d\u5916\u7684\u5185\u5b58\uff0c\u8fd9\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4f1a\u6210\u4e3a\u4e00\u4e2a\u95ee\u9898\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<pre>\/\/ \u5b9a\u4e49\u5c06\u6570\u5b57\u5e73\u65b9\u7684\u9ad8\u9636\u51fd\u6570\nFunction&lt;Integer, Integer&gt; square = x -&gt; x * x;\n\n\/\/ \u4f7f\u7528 map \u65b9\u6cd5\u5c06\u9ad8\u9636\u51fd\u6570\u5e94\u7528\u4e8e\u6570\u5b57\u5217\u8868\nList&lt;Integer&gt; numbers = List.of(1, 2, 3, 4, 5);\nList&lt;Integer&gt; squaredNumbers = numbers.stream()\n        .map(square)\n        .toList();\n\n\/\/ \u6253\u5370\u5e73\u65b9\u540e\u7684\u7ed3\u679c\nSystem.out.println(squaredNumbers); \/\/ \u8f93\u51fa\uff1a[1, 4, 9, 16, 25]<\/pre>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u9ad8\u9636\u51fd\u6570 <code>square<\/code> \u88ab\u7528\u4e8e\u5c06\u6bcf\u4e2a\u6570\u5b57\u5e73\u65b9\uff0c\u7136\u540e\u4f7f\u7528 <code>map<\/code> \u65b9\u6cd5\u5c06\u6b64\u51fd\u6570\u5e94\u7528\u4e8e\u6570\u5b57\u5217\u8868\u3002\u8fd9\u63d0\u4f9b\u4e86\u7b80\u6d01\u800c\u53ef\u91cd\u7528\u7684\u65b9\u5f0f\u6765\u6267\u884c\u5e73\u65b9\u64cd\u4f5c\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300a\u9ad8\u9636\u51fd\u6570\u5728 Java \u4e2d\u7684\u4f18\u70b9\u548c\u7f3a\u70b9\u6709\u54ea\u4e9b\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9ad8\u9636\u51fd\u6570\u5728 Java \u4e2d\u7684\u4f18\u70b9\u548c&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202956","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202956","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202956"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202956\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202956"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202956"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202956"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}