{"id":202862,"date":"2025-05-22T11:00:14","date_gmt":"2025-05-22T03:00:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202862\/"},"modified":"2025-05-22T11:00:14","modified_gmt":"2025-05-22T03:00:14","slug":"java-%e5%87%bd%e6%95%b0%e5%8f%82%e6%95%b0%e5%92%8c%e8%bf%94%e5%9b%9e%e5%80%bc%e7%9a%84%e5%8f%af%e5%8f%98%e9%95%bf%e6%95%b0%e7%bb%84%e7%b1%bb%e5%9e%8b%e5%a6%82%e4%bd%95%e5%ae%9a%e4%b9%89%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202862\/","title":{"rendered":"Java \u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7684\u53ef\u53d8\u957f\u6570\u7ec4\u7c7b\u578b\u5982\u4f55\u5b9a\u4e49\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java \u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7684\u53ef\u53d8\u957f\u6570\u7ec4\u7c7b\u578b\u5982\u4f55\u5b9a\u4e49\uff1f<\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava \u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7684\u53ef\u53d8\u957f\u6570\u7ec4\u7c7b\u578b\u5982\u4f55\u5b9a\u4e49\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n<p>Java \u4e2d\u5141\u8bb8\u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u4e3a\u53ef\u53d8\u957f\u6570\u7ec4\uff0c\u5373\u957f\u5ea6\u53ef\u5728\u7f16\u8bd1\u5668\u7ea7\u522b\u672a\u77e5\u3002\u8981\u5b9a\u4e49\u53ef\u53d8\u957f\u6570\u7ec4\u7c7b\u578b\uff0c\u4f7f\u7528\u8bed\u6cd5 &#8230; varargs\u3002\u901a\u8fc7\u53c2\u6570\u53ef\u53d8\u957f\u6570\u7ec4\u53ef\u4ee5\u63a5\u6536\u4efb\u610f\u6570\u91cf\u7684\u8f93\u5165\u7528\u4e8e\u8ba1\u7b97\uff0c\u901a\u8fc7\u8fd4\u56de\u503c\u53ef\u53d8\u957f\u6570\u7ec4\u53ef\u4ee5\u751f\u6210\u6307\u5b9a\u957f\u5ea6\u7684\u968f\u673a\u6570\u7ec4\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729952327671cfa47356c3.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7684\u53ef\u53d8\u957f\u6570\u7ec4\u7c7b\u578b\u5b9a\u4e49<\/strong><\/p>\n<p>\u53ef\u53d8\u957f\u6570\u7ec4\uff0c\u5373\u5728\u7f16\u8bd1\u5668\u7ea7\u522b\u672a\u77e5\u957f\u5ea6\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u5728 Java \u51fd\u6570\u4e2d\u4f5c\u4e3a\u53c2\u6570\u6216\u8fd4\u56de\u503c\u7c7b\u578b\u4f7f\u7528\u3002\u8981\u5b9a\u4e49\u53ef\u53d8\u957f\u6570\u7ec4\u7c7b\u578b\uff0c\u8bf7\u4f7f\u7528 <strong>&#8230; varargs<\/strong> \u8bed\u6cd5\uff1a<\/p>\n<pre>\/\/ \u53c2\u6570\u7c7b\u578b\u4e3a\u53ef\u53d8\u957f\u6570\u7ec4\nvoid myMethod(int... numbers) {}\n\n\/\/ \u8fd4\u56de\u7c7b\u578b\u4e3a\u53ef\u53d8\u957f\u6570\u7ec4\nint[] myMethod() { return new int[0]; }<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p><strong>\u53c2\u6570\u53ef\u53d8\u957f\u6570\u7ec4\uff1a<\/strong><\/p>\n<p>\u4ee5\u4e0b\u51fd\u6570\u4f7f\u7528\u53ef\u53d8\u957f\u6570\u7ec4\u53c2\u6570\u63a5\u6536\u4efb\u610f\u6570\u91cf\u7684\u6570\u5b57\uff0c\u5e76\u8ba1\u7b97\u5176\u603b\u548c\uff1a<\/p>\n<pre>import java.util.Arrays;\n\npublic class SumNumbers {\n\n    public static void main(String[] args) {\n        int result = sumNumbers(1, 2, 3, 4, 5);\n        System.out.println(result); \/\/ \u8f93\u51fa\uff1a15\n    }\n\n    public static int sumNumbers(int... numbers) {\n        return Arrays.stream(numbers).sum();\n    }\n}<\/pre>\n<p><strong>\u8fd4\u56de\u503c\u53ef\u53d8\u957f\u6570\u7ec4\uff1a<\/strong><\/p>\n<p>\u4ee5\u4e0b\u51fd\u6570\u4f7f\u7528\u4e00\u4e2a\u53ef\u53d8\u957f\u6570\u7ec4\u4f5c\u4e3a\u8fd4\u56de\u503c\uff0c\u5b83\u751f\u6210\u4e00\u4e2a\u5305\u542b\u6307\u5b9a\u957f\u5ea6\u968f\u673a\u6570\u7684\u6570\u7ec4\uff1a<\/p>\n<pre>import java.util.Random;\n\npublic class RandomNumbers {\n\n    public static void main(String[] args) {\n        int[] randomNumbers = generateRandomNumbers(5);\n        System.out.println(Arrays.toString(randomNumbers)); \/\/ [12, 34, 56, 78, 90]\n    }\n\n    public static int[] generateRandomNumbers(int length) {\n        Random random = new Random();\n        int[] numbers = new int[length];\n        for (int i = 0; i &lt; length; i++) {\n            numbers[i] = random.nextInt(100);\n        }\n        return numbers;\n    }\n}<\/pre>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aJava \u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7684\u53ef\u53d8\u957f\u6570\u7ec4\u7c7b\u578b\u5982\u4f55\u5b9a\u4e49\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java \u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7684\u53ef\u53d8&#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-202862","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202862","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=202862"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202862\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202862"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202862"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202862"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}