{"id":202913,"date":"2025-05-22T10:22:14","date_gmt":"2025-05-22T02:22:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202913\/"},"modified":"2025-05-22T10:22:14","modified_gmt":"2025-05-22T02:22:14","slug":"java-%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e4%b8%ad%e7%9a%84%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202913\/","title":{"rendered":"Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p><span style=\"font-size: 15px\">\u6709\u5fd7\u8005\uff0c\u4e8b\u7adf\u6210\uff01\u5982\u679c\u4f60\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\uff0c\u90a3\u4e48\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff01\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/span><\/p>\n<p>Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\uff1a\u4f7f\u7528\u7eaf\u51fd\u6570\uff0c\u4e0d\u4f9d\u8d56\u4e8e\u5916\u90e8\u72b6\u6001\u6216\u526f\u4f5c\u7528\u3002\u4f7f\u7528\u4e00\u7b49\u51fd\u6570\uff0c\u53ef\u4ee5\u4f20\u9012\u3001\u8fd4\u56de\u6216\u5b58\u50a8\u5728\u6570\u636e\u7ed3\u6784\u4e2d\u3002\u4f7f\u7528\u4e0d\u53ef\u53d8\u6570\u636e\uff0c\u521b\u5efa\u540e\u4e0d\u53ef\u4fee\u6539\u3002\u901a\u8fc7\u91c7\u7528\u8fd9\u4e9b\u6700\u4f73\u5b9e\u8df5\uff0c\u53ef\u4ee5\u7f16\u5199\u51fa\u66f4\u53ef\u6d4b\u8bd5\u3001\u53ef\u7ef4\u62a4\u3001\u53ef\u91cd\u7528\u548c\u9ad8\u6548\u7684 Java \u4ee3\u7801\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1729997119671da93f2029a.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n<p>\u51fd\u6570\u5f0f\u7f16\u7a0b\u662f\u4e00\u79cd\u7f16\u7a0b\u8303\u4f8b\uff0c\u5b83\u5f3a\u8c03\u4f7f\u7528\u7eaf\u51fd\u6570\u3001\u4e00\u7b49\u51fd\u6570\u548c\u4e0d\u53ef\u53d8\u6570\u636e\u3002\u5728 Java \u4e2d\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u53ef\u4ee5\u6781\u5927\u5730\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u6d4b\u8bd5\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u548c\u6027\u80fd\u3002<\/p>\n<p><strong>\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7eaf\u51fd\u6570\uff1a<\/strong>\u7eaf\u51fd\u6570\u4e0d\u4f9d\u8d56\u4e8e\u5916\u90e8\u72b6\u6001\u6216\u526f\u4f5c\u7528\u3002\u8fd9\u4f7f\u5f97\u5b83\u4eec\u6613\u4e8e\u6d4b\u8bd5\u548c\u4f7f\u7528\uff0c\u56e0\u4e3a\u5b83\u4eec\u7684\u884c\u4e3a\u53ef\u4ee5\u5b8c\u5168\u4ece\u5b83\u4eec\u7684\u8f93\u5165\u63a8\u65ad\u51fa\u6765\u3002<\/li>\n<\/ul>\n<pre>\/\/ \u7eaf\u51fd\u6570\nint sum(int a, int b) {\n    return a + b;\n}\n\n\/\/ \u975e\u7eaf\u51fd\u6570\uff08\u4f7f\u7528\u5916\u90e8\u72b6\u6001\uff09\nint counter = 0;\n\nint incrementCounter() {\n    return counter++;\n}<\/pre>\n<ul>\n<li><strong>\u4e00\u7b49\u51fd\u6570\uff1a<\/strong>\u4e00\u7b49\u51fd\u6570\u53ef\u4ee5\u4f5c\u4e3a\u51fd\u6570\u7684\u53c2\u6570\u4f20\u9012\u3001\u8fd4\u56de\u7ed3\u679c\uff0c\u751a\u81f3\u5b58\u50a8\u5728\u6570\u636e\u7ed3\u6784\u4e2d\u3002\u8fd9\u4f7f\u4f60\u53ef\u4ee5\u7f16\u5199\u51fa\u66f4\u7075\u6d3b\u3001\u53ef\u91cd\u7528\u7684\u4ee3\u7801\u3002<\/li>\n<\/ul>\n<pre>\/\/ \u533f\u540d\u51fd\u6570\uff08\u4e00\u7b49\u51fd\u6570\uff09\nComparator&lt;String&gt; comparator = (a, b) -&gt; a.compareTo(b);\n\n\/\/ \u5c06\u4e00\u7b49\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\nList&lt;String&gt; sortedList = names.sort(Comparator);<\/pre>\n<ul>\n<li><strong>\u4e0d\u53ef\u53d8\u6570\u636e\uff1a<\/strong>\u4e0d\u53ef\u53d8\u6570\u636e\u5728\u521b\u5efa\u540e\u4e0d\u80fd\u88ab\u4fee\u6539\u3002\u8fd9\u6709\u52a9\u4e8e\u907f\u514d\u72b6\u6001\u6df7\u6dc6\u548c\u4f7f\u4f60\u7684\u4ee3\u7801\u66f4\u5177\u53ef\u9884\u6d4b\u6027\u3002<\/li>\n<\/ul>\n<pre>\/\/ \u4e0d\u53ef\u53d8\u5217\u8868\nList&lt;String&gt; names = ImmutableList.of(\"John\", \"Mary\", \"Bob\");\n\n\/\/ \u53ef\u53d8\u5217\u8868\nList&lt;String&gt; mutableNames = new ArrayList&lt;&gt;();\nmutableNames.add(\"John\");<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4e00\u4e2a\u67e5\u627e\u5b57\u7b26\u4e32\u5217\u8868\u4e2d\u6700\u5927\u503c\u7684\u95ee\u9898\u3002<\/p>\n<p><strong>\u4f20\u7edf\u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre>String maxValue(List&lt;String&gt; strings) {\n    String max = \"\";\n    for (String s : strings) {\n        if (s.compareTo(max) &gt; 0) {\n            max = s;\n        }\n    }\n    return max;\n}<\/pre>\n<p><strong>\u51fd\u6570\u5f0f\u65b9\u6cd5\uff1a<\/strong>\u4f7f\u7528 <code>max<\/code> \u65b9\u6cd5\u548c <code>Comparator<\/code> \u63a5\u53e3\u5b9e\u73b0\uff1a<\/p>\n<pre>String maxValue(List&lt;String&gt; strings) {\n    Comparator&lt;String&gt; comparator = (a, b) -&gt; a.compareTo(b);\n    return strings.stream()\n            .max(comparator)\n            .orElse(\"\");\n}<\/pre>\n<p><strong>\u4f18\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u51fd\u6570\u5f0f\u65b9\u6cd5\u7b80\u6d01\u9ad8\u6548\uff0c\u56e0\u4e3a\u5b83\u4f7f\u7528\u4e86\u73b0\u6709\u7684\u5e93\u51fd\u6570\u3002<\/li>\n<li>\u5b83\u4f7f\u7528\u4e0d\u53ef\u53d8\u5217\u8868\uff0c\u56e0\u6b64\u907f\u514d\u4e86\u6f5c\u5728\u7684\u72b6\u6001\u6df7\u6dc6\u3002<\/li>\n<\/ul>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>\u901a\u8fc7\u91c7\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u7684\u6700\u4f73\u5b9e\u8df5\uff0c\u4f60\u53ef\u4ee5\u7f16\u5199\u51fa\u66f4\u7b80\u6d01\u3001\u53ef\u7ef4\u62a4\u3001\u53ef\u6d4b\u8bd5\u548c\u53ef\u6269\u5c55\u7684 Java \u4ee3\u7801\u3002<\/p>\n<p>\u672c\u7bc7\u5173\u4e8e\u300aJava \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u7684\u6700\u4f73\u5b9e\u8df5\u662f\u4ec0\u4e48\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u7684\u6700\u4f73\u5b9e\u8df5&#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-202913","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202913","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=202913"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202913\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202913"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202913"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}