{"id":39265,"date":"2024-11-26T09:42:25","date_gmt":"2024-11-26T01:42:25","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39265\/"},"modified":"2024-11-26T09:42:25","modified_gmt":"2024-11-26T01:42:25","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e8%8e%b7%e5%8f%96%e6%95%b0%e7%bb%84%e9%87%8c%e7%9a%84%e5%80%bc","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39265\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u83b7\u53d6\u6570\u7ec4\u91cc\u7684\u503c"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u83b7\u53d6\u6570\u7ec4\u503c\u7684\u65b9\u6cd5\uff1a1. \u58f0\u660e\u5e76\u521d\u59cb\u5316\u6570\u7ec4\u30022. \u4f7f\u7528\u4e0b\u6807\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u4e0b\u6807\u4ece 0 \u5f00\u59cb\u30023. \u4f7f\u7528 .length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111605513969410.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u600e\u4e48\u83b7\u53d6\u6570\u7ec4\u91cc\u7684\u503c\u63d2\u56fe\" alt=\"java\u4e2d\u600e\u4e48\u83b7\u53d6\u6570\u7ec4\u91cc\u7684\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u4f7f\u7528\u6570\u7ec4\u5143\u7d20\u7684\u4e0b\u6807\u5373\u53ef\u3002<\/p>\n<p><strong>\u5177\u4f53\u6b65\u9aa4\uff1a<\/strong><\/p>\n<ol>\n<li>\n<p><strong>\u58f0\u660e\u5e76\u521d\u59cb\u5316\u6570\u7ec4\uff1a<\/strong>\u9996\u5148\uff0c\u60a8\u9700\u8981\u58f0\u660e\u5e76\u521d\u59cb\u5316\u4e00\u4e2a\u6570\u7ec4\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<li>\n<p><strong>\u4f7f\u7528\u4e0b\u6807\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a<\/strong>\u8981\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0b\u6807\u3002\u4e0b\u6807\u4ece 0 \u5f00\u59cb\uff0c\u5bf9\u5e94\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5c06\u83b7\u53d6\u6570\u7ec4 numbers \u4e2d\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u503c\uff1a<\/p>\n<pre>int firstElement = numbers[0];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<li>\n<p><strong>\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\uff1a<\/strong>\u60a8\u53ef\u4ee5\u4f7f\u7528 .length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u8fd9\u5c06\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int length = numbers.length;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ol>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u4e86\u5982\u4f55\u5728 Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c\uff1a<\/p>\n<pre>public class ArrayExample {\n\n    public static void main(String[] args) {\n        \/\/ \u58f0\u660e\u5e76\u521d\u59cb\u5316\u6570\u7ec4\n        int[] numbers = {1, 2, 3, 4, 5};\n\n        \/\/ \u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\n        int firstElement = numbers[0];\n\n        \/\/ \u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\n        int lastElement = numbers[numbers.length - 1];\n\n        \/\/ \u8f93\u51fa\u7ed3\u679c\n        System.out.println(\"\u7b2c\u4e00\u4e2a\u5143\u7d20\uff1a\" + firstElement);\n        System.out.println(\"\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff1a\" + lastElement);\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u5c06\u8f93\u51fa\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<pre>\u7b2c\u4e00\u4e2a\u5143\u7d20\uff1a1\n\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff1a5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u83b7\u53d6\u6570\u7ec4\u91cc\u7684\u503c\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 java \u4e2d\u83b7\u53d6\u6570\u7ec4\u503c\u7684\u65b9\u6cd5\uff1a1. \u58f0\u660e\u5e76\u521d\u59cb\u5316\u6570\u7ec4\u30022. \u4f7f\u7528\u4e0b\u6807\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u4e0b\u6807\u4ece 0 \u5f00\u59cb\u30023. \u4f7f\u7528 .length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u3002 \u5982\u4f55\u5728 Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c \u5728 Java \u4e2d\uff0c\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u4f7f\u7528\u6570\u7ec4\u5143\u7d20\u7684\u4e0b\u6807\u5373\u53ef\u3002 \u5177\u4f53\u6b65\u9aa4\uff1a \u58f0\u660e\u5e76\u521d\u59cb\u5316\u6570\u7ec4\uff1a\u9996\u5148\uff0c\u60a8\u9700\u8981\u58f0\u660e\u5e76\u521d\u59cb\u5316\u4e00\u4e2a\u6570\u7ec4\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u4e0b\u6807\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a\u8981\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0b\u6807\u3002\u4e0b\u6807\u4ece 0 \u5f00\u59cb\uff0c\u5bf9\u5e94\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5c06\u83b7\u53d6\u6570\u7ec4 numbers \u4e2d\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u503c\uff1a int firstElement = numbers[0]; \u767b\u5f55\u540e\u590d\u5236 \u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\uff1a\u60a8\u53ef\u4ee5\u4f7f\u7528 .length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u8fd9\u5c06\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u4f8b\u5982\uff1a int length = numbers.length; \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\uff1a \u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u4e86\u5982\u4f55\u5728 Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c\uff1a public class ArrayExample { public [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-39265","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39265","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=39265"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39265\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39265"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}