{"id":202643,"date":"2025-05-22T09:30:16","date_gmt":"2025-05-22T01:30:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202643\/"},"modified":"2025-05-22T09:30:16","modified_gmt":"2025-05-22T01:30:16","slug":"java%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e4%b8%8e%e5%85%b6%e4%bb%96%e6%95%b0%e6%8d%ae%e5%a4%84%e7%90%86%e6%8a%80%e6%9c%af%e7%9a%84%e5%af%b9%e6%af%94%e7%a0%94%e7%a9%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202643\/","title":{"rendered":"Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e0e\u5176\u4ed6\u6570\u636e\u5904\u7406\u6280\u672f\u7684\u5bf9\u6bd4\u7814\u7a76"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e0e\u5176\u4ed6\u6570\u636e\u5904\u7406\u6280\u672f\u7684\u5bf9\u6bd4\u7814\u7a76<\/h1>\n<p>\u5728\u6587\u7ae0\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u5c31\u6574\u7406\u5206\u4eab\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e0e\u5176\u4ed6\u6570\u636e\u5904\u7406\u6280\u672f\u7684\u5bf9\u6bd4\u7814\u7a76\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n<p>\u51fd\u6570\u5f0f\u7f16\u7a0b\u5728 Java \u4e2d\u7684\u7a81\u51fa\u4f18\u70b9\u5305\u62ec\u5e76\u884c\u6027\u3001\u6570\u636e\u4e0d\u53ef\u53d8\u6027\u3001\u53ef\u6d4b\u8bd5\u6027\u548c\u4ee3\u7801\u53ef\u7ec4\u5408\u6027\u3002\u7136\u800c\uff0c\u5b83\u4e5f\u5b58\u5728\u5b66\u4e60\u66f2\u7ebf\u3001\u6f5c\u5728\u7684\u6027\u80fd\u5f00\u9500\u548c\u53ef\u4f38\u7f29\u6027\u9650\u5236\u3002\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u63d0\u4f9b\u5bf9\u8c61\u5efa\u6a21\u548c\u5c01\u88c5\uff0c\u547d\u4ee4\u5f0f\u7f16\u7a0b\u5219\u5f3a\u8c03\u987a\u5e8f\u6267\u884c\u547d\u4ee4\u3002\u901a\u8fc7\u5c06\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e0e\u8fd9\u4e9b\u6280\u672f\u8fdb\u884c\u6bd4\u8f83\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6839\u636e\u7279\u5b9a\u5e94\u7528\u7684\u9700\u6c42\u9009\u62e9\u6700\u5408\u9002\u7684\u6570\u636e\u5904\u7406\u6280\u672f\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729927239671c9847bbd66.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e0e\u5176\u4ed6\u6570\u636e\u5904\u7406\u6280\u672f\u7684\u5bf9\u6bd4\u7814\u7a76<\/strong><\/p>\n<p><strong>\u7b80\u4ecb<\/strong><\/p>\n<p>\u968f\u7740\u5927\u6570\u636e\u548c\u673a\u5668\u5b66\u4e60\u7b49\u590d\u6742\u6570\u636e\u5206\u6790\u5e94\u7528\u7684\u5174\u8d77\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u8303\u4f8b\u5728 Java \u4e2d\u7684\u5e94\u7528\u8d8a\u6765\u8d8a\u5e7f\u6cdb\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8 Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u76f8\u5bf9\u4e8e\u5176\u4ed6\u5e38\u89c1\u6570\u636e\u5904\u7406\u6280\u672f\uff08\u4f8b\u5982\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u548c\u547d\u4ee4\u5f0f\u7f16\u7a0b\uff09\u7684\u4f18\u70b9\u548c\u7f3a\u70b9\uff0c\u5e76\u901a\u8fc7\u5b9e\u9645\u6848\u4f8b\u8fdb\u884c\u6bd4\u8f83\u8bf4\u660e\u3002<\/p>\n<p><strong>\u51fd\u6570\u5f0f\u7f16\u7a0b<\/strong><\/p>\n<p>\u51fd\u6570\u5f0f\u7f16\u7a0b\u662f\u4e00\u79cd\u7f16\u7a0b\u8303\u4f8b\uff0c\u5f3a\u8c03\u4e0d\u53ef\u53d8\u6027\u3001\u7eaf\u51fd\u6570\u548c\u9ad8\u9636\u51fd\u6570\u3002\u5b83\u7740\u91cd\u4e8e\u4f7f\u7528\u51fd\u6570\u4f5c\u4e3a\u4e00\u7b49\u516c\u6c11\uff0c\u4ece\u800c\u53ef\u4ee5\u50cf\u5904\u7406\u5176\u4ed6\u6570\u636e\u7c7b\u578b\u4e00\u6837\u5904\u7406\u548c\u7ec4\u5408\u51fd\u6570\u3002<\/p>\n<p><strong>\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b<\/strong><\/p>\n<p>\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\uff08OOP\uff09\u662f\u4e00\u79cd\u4ee5\u5bf9\u8c61\u4e3a\u4e2d\u5fc3\u7684\u6570\u636e\u5904\u7406\u6280\u672f\u3002\u5bf9\u8c61\u5c01\u88c5\u6570\u636e\u548c\u884c\u4e3a\uff0c\u5e76\u901a\u8fc7\u7c7b\u548c\u7ee7\u627f\u8fdb\u884c\u7ec4\u7ec7\u3002OOP \u63d0\u4f9b\u4e86\u5bf9\u8c61\u5efa\u6a21\u7684\u62bd\u8c61\u6982\u5ff5\uff0c\u6709\u5229\u4e8e\u7ef4\u62a4\u5927\u578b\u4ee3\u7801\u5e93\u3002<\/p>\n<p><strong>\u547d\u4ee4\u5f0f\u7f16\u7a0b<\/strong><\/p>\n<p>\u547d\u4ee4\u5f0f\u7f16\u7a0b\u662f\u4e00\u79cd\u987a\u5e8f\u6267\u884c\u547d\u4ee4\u7684\u7f16\u7a0b\u8303\u4f8b\u3002\u5b83\u4f7f\u7528\u53d8\u91cf\u548c\u63a7\u5236\u6d41\u8bed\u53e5\uff08\u5982\u5faa\u73af\u548c\u6761\u4ef6\uff09\u6765\u4fee\u6539\u6570\u636e\u72b6\u6001\u3002\u547d\u4ee4\u5f0f\u7f16\u7a0b\u7b80\u5355\u6613\u61c2\uff0c\u4f46\u5904\u7406\u5e76\u53d1\u95ee\u9898\u65f6\u53ef\u80fd\u53d8\u5f97\u590d\u6742\u3002<\/p>\n<p><strong>\u5bf9\u6bd4\u8bc4\u4f30<\/strong><\/p>\n<p><strong>\u4f18\u70b9<\/strong><\/p>\n<ul>\n<li><strong>\u5e76\u884c\u6027\uff1a<\/strong>\u51fd\u6570\u5f0f\u7f16\u7a0b\u652f\u6301\u5e76\u53d1\u6267\u884c\uff0c\u8fd9\u662f\u5904\u7406\u5927\u6570\u636e\u96c6\u548c\u590d\u6742\u8ba1\u7b97\u65f6\u7684\u5173\u952e\u4f18\u52bf\u3002<\/li>\n<li><strong>\u4e0d\u53d8\u6027\uff1a<\/strong>\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6570\u636e\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u4e0d\u80fd\u88ab\u76f4\u63a5\u4fee\u6539\uff0c\u4ece\u800c\u6d88\u9664\u4e86\u6570\u636e\u7ade\u4e89\u6761\u4ef6\u7684\u98ce\u9669\u3002<\/li>\n<li><strong>\u53ef\u6d4b\u8bd5\u6027\uff1a<\/strong>\u7eaf\u51fd\u6570\u6ca1\u6709\u526f\u4f5c\u7528\uff0c\u4f7f\u5176\u66f4\u5bb9\u6613\u8fdb\u884c\u5355\u5143\u6d4b\u8bd5\u548c\u8c03\u8bd5\u3002<\/li>\n<li><strong>\u53ef\u7ec4\u5408\u6027\uff1a<\/strong>\u9ad8\u9636\u51fd\u6570\u5141\u8bb8\u5c06\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u6216\u8fd4\u56de\u503c\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u7ec4\u5408\u6027\u548c\u91cd\u7528\u6027\u3002<\/li>\n<\/ul>\n<p><strong>\u7f3a\u70b9<\/strong><\/p>\n<ul>\n<li><strong>\u5b66\u4e60\u66f2\u7ebf\uff1a<\/strong>\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u8303\u4f8b\u53ef\u80fd\u4e0e\u5176\u4ed6\u7f16\u7a0b\u8303\u4f8b\u4e0d\u540c\uff0c\u9700\u8981\u5b66\u4e60\u66f2\u7ebf\u3002<\/li>\n<li><strong>\u6027\u80fd\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u53ef\u80fd\u6bd4\u5176\u4ed6\u8303\u4f8b\u5f00\u9500\u66f4\u5927\uff0c\u7279\u522b\u662f\u6d89\u53ca\u5927\u91cf\u5bf9\u8c61\u521b\u5efa\u65f6\u3002<\/li>\n<li><strong>\u53ef\u4f38\u7f29\u6027\uff1a<\/strong>\u5f53\u5904\u7406\u5206\u5e03\u5f0f\u6570\u636e\u65f6\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u4e0d\u53ef\u53d8\u6027\u53ef\u80fd\u9650\u5236\u53ef\u4f38\u7f29\u6027\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p><strong>\u6848\u4f8b 1\uff1a\u6620\u5c04\u548c\u8fc7\u6ee4\u6570\u636e<\/strong><\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5b66\u751f\u6210\u7ee9\u5217\u8868\uff0c\u6211\u4eec\u9700\u8981\u5bf9\u6210\u7ee9\u8fdb\u884c\u6620\u5c04\uff08\u589e\u52a0 10 \u5206\uff09\u5e76\u8fc7\u6ee4\u5408\u683c\uff08\u9ad8\u4e8e\u53ca\u683c\u7ebf\uff09\u7684\u6210\u7ee9\u3002<\/p>\n<pre>\/\/ \u51fd\u6570\u5f0f\u7f16\u7a0b\nList&lt;Integer&gt; grades = List.of(80, 90, 75, 65, 95);\nList&lt;Integer&gt; increasedGrades = grades.stream()\n        .map(grade -&gt; grade + 10)\n        .filter(grade -&gt; grade &gt;= 70)\n        .toList();\n\n\/\/ \u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\nclass Student {\n    private int grade;\n\n    ...\n}\nList&lt;Student&gt; students = List.of(...);\nList&lt;Student&gt; qualifiedStudents = new ArrayList&lt;&gt;();\nfor (Student student : students) {\n    student.setGrade(student.getGrade() + 10);\n    if (student.getGrade() &gt;= 70) {\n        qualifiedStudents.add(student);\n    }\n}<\/pre>\n<p>\u5728\u7b2c\u4e00\u4e2a\u6848\u4f8b\u4e2d\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u6d41\u5f0f API \u63d0\u4f9b\u4e86\u4e00\u79cd\u66f4\u4f18\u96c5\u548c\u53ef\u8bfb\u7684\u65b9\u6cd5\u6765\u6620\u5c04\u548c\u8fc7\u6ee4\u6570\u636e\u3002<\/p>\n<p><strong>\u6848\u4f8b 2\uff1a\u5e76\u884c\u8ba1\u7b97<\/strong><\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u53ef\u4ee5\u5e76\u884c\u6267\u884c\u7684\u5927\u578b\u77e9\u9635\u4e58\u6cd5\u4efb\u52a1\u3002<\/p>\n<pre>\/\/ \u51fd\u6570\u5f0f\u7f16\u7a0b\nint[][] matrixA = ...;\nint[][] matrixB = ...;\nint[][] result = Stream.of(0, 1, ..., matrixA.length - 1)\n        .parallel()\n        .map(i -&gt; Matrix.multiplyRow(matrixA, matrixB, i))\n        .toArray(int[][]::new);\n\n\/\/ \u547d\u4ee4\u5f0f\u7f16\u7a0b\nint[][] result = new int[matrixA.length][matrixA[0].length];\nfor (int i = 0; i &lt; matrixA.length; i++) {\n    result[i] = Matrix.multiplyRow(matrixA, matrixB, i);\n}<\/pre>\n<p>\u5728\u7b2c\u4e8c\u4e2a\u6848\u4f8b\u4e2d\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u5e76\u884c\u6d41\u5141\u8bb8\u5e76\u884c\u5730\u6267\u884c\u77e9\u9635\u4e58\u6cd5\uff0c\u4ece\u800c\u663e\u8457\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>\u9009\u62e9\u7684\u6700\u4f73\u6570\u636e\u5904\u7406\u6280\u672f\u53d6\u51b3\u4e8e\u5177\u4f53\u5e94\u7528\u7684\u9700\u6c42\u3002\u51fd\u6570\u5f0f\u7f16\u7a0b\u63d0\u4f9b\u4e86\u5e76\u53d1\u6027\u3001\u4e0d\u53d8\u6027\u548c\u53ef\u6d4b\u8bd5\u6027\u65b9\u9762\u7684\u4f18\u52bf\uff0c\u800c\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u548c\u547d\u4ee4\u5f0f\u7f16\u7a0b\u5219\u63d0\u4f9b\u4e86\u4e0d\u540c\u7684\u4f18\u70b9\u548c\u7f3a\u70b9\u3002\u901a\u8fc7\u4e86\u89e3\u6bcf\u79cd\u6280\u672f\u7684\u4f18\u70b9\u548c\u7f3a\u70b9\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u505a\u51fa\u660e\u667a\u7684\u51b3\u5b9a\uff0c\u9009\u62e9\u6700\u9002\u5408\u5176\u9700\u6c42\u7684\u6700\u4f73\u6280\u672f\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8e\u51fd\u6570\u5f0f\u7f16\u7a0b,\u6570\u636e\u5904\u7406\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e0e\u5176\u4ed6\u6570\u636e\u5904\u7406\u6280\u672f\u7684\u5bf9\u6bd4\u7814\u7a76\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e0e\u5176\u4ed6\u6570\u636e\u5904\u7406&#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-202643","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202643","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=202643"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202643\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202643"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202643"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}