{"id":66296,"date":"2025-05-03T15:07:19","date_gmt":"2025-05-03T07:07:19","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66296\/"},"modified":"2025-05-03T15:07:19","modified_gmt":"2025-05-03T07:07:19","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e5%b0%86%e5%80%bc%e6%94%be%e5%88%b0%e6%95%b0%e7%bb%84%e4%b8%ad-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66296\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u5c06\u503c\u653e\u5230\u6570\u7ec4\u4e2d"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u5c06\u503c\u653e\u5230\u6570\u7ec4\u4e2d\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a\u58f0\u660e\u6570\u7ec4\u5e76\u6307\u5b9a\u5927\u5c0f\uff0c\u4f8b\u5982\uff1aint[] numbers = new int[5];\u4f7f\u7528 [] \u7b26\u53f7\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u4f8b\u5982\uff1anumbers[0] = 10;\u4f7f\u7528\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u4f8b\u5982\uff1afor (int number : numbers) { system.out.println(number); }\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\uff0c\u4f8b\u5982\uff1aint length = numbers.length;\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/15\/2024111506252259724.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u600e\u4e48\u5c06\u503c\u653e\u5230\u6570\u7ec4\u4e2d\u63d2\u56fe\" alt=\"java\u4e2d\u600e\u4e48\u5c06\u503c\u653e\u5230\u6570\u7ec4\u4e2d\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5728 Java \u4e2d\u5c06\u503c\u653e\u5230\u6570\u7ec4\u4e2d<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\u5c06\u503c\u653e\u5230\u6570\u7ec4\u4e2d\uff1a<\/p>\n<p><strong>1. \u58f0\u660e\u6570\u7ec4<\/strong><\/p>\n<p>\u4f7f\u7528 [] \u7b26\u53f7\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\u53d8\u91cf\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = new int[5]; \/\/ \u58f0\u660e\u4e00\u4e2a\u5305\u542b 5 \u4e2a\u5143\u7d20\u7684\u6574\u578b\u6570\u7ec4<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n<p>\u4f7f\u7528 [] \u7b26\u53f7\u8bbf\u95ee\u6570\u7ec4\u7684\u5143\u7d20\u3002\u6570\u7ec4\u5143\u7d20\u7684\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>numbers[0] = 10; \/\/ \u5c06 10 \u8d4b\u503c\u7ed9\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u904d\u5386\u6570\u7ec4<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\u6216\u589e\u5f3a\u7684 for-each \u5faa\u73af\u6765\u904d\u5386\u6570\u7ec4\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>\/\/ \u4f7f\u7528 for \u5faa\u73af\nfor (int i = 0; i &lt; numbers.length; i++) {\n    System.out.println(numbers[i]); \/\/ \u6253\u5370\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\n}\n\n\/\/ \u4f7f\u7528\u589e\u5f3a\u7684 for-each \u5faa\u73af\nfor (int number : numbers) {\n    System.out.println(number); \/\/ \u6253\u5370\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u6570\u7ec4\u957f\u5ea6<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int length = numbers.length;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u4e86\u5982\u4f55\u5c06\u503c\u653e\u5230 Java \u6570\u7ec4\u4e2d\uff1a<\/p>\n<pre>public class Main {\n    public static void main(String[] args) {\n        \/\/ \u58f0\u660e\u4e00\u4e2a\u6574\u578b\u6570\u7ec4\n        int[] numbers = new int[5];\n\n        \/\/ \u5c06\u503c\u653e\u5230\u6570\u7ec4\u4e2d\n        numbers[0] = 10;\n        numbers[1] = 20;\n        numbers[2] = 30;\n        numbers[3] = 40;\n        numbers[4] = 50;\n\n        \/\/ \u904d\u5386\u6570\u7ec4\u5e76\u6253\u5370\u5143\u7d20\n        for (int number : numbers) {\n            System.out.println(number);\n        }\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>10\n20\n30\n40\n50<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u5c06\u503c\u653e\u5230\u6570\u7ec4\u4e2d\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 java \u4e2d\u5c06\u503c\u653e\u5230\u6570\u7ec4\u4e2d\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a\u58f0\u660e\u6570\u7ec4\u5e76\u6307\u5b9a\u5927\u5c0f\uff0c\u4f8b\u5982\uff1aint[] numbers = new int[5];\u4f7f\u7528 [] \u7b26\u53f7\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u4f8b\u5982\uff1anumbers[0] = 10;\u4f7f\u7528\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u4f8b\u5982\uff1afor (int number : numbers) { system.out.println(number); }\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\uff0c\u4f8b\u5982\uff1aint length = numbers.length; \u5728 Java \u4e2d\u5c06\u503c\u653e\u5230\u6570\u7ec4\u4e2d \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\u5c06\u503c\u653e\u5230\u6570\u7ec4\u4e2d\uff1a 1. \u58f0\u660e\u6570\u7ec4 \u4f7f\u7528 [] \u7b26\u53f7\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\u53d8\u91cf\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = new int[5]; \/\/ \u58f0\u660e\u4e00\u4e2a\u5305\u542b 5 \u4e2a\u5143\u7d20\u7684\u6574\u578b\u6570\u7ec4 \u767b\u5f55\u540e\u590d\u5236 2. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20 \u4f7f\u7528 [] \u7b26\u53f7\u8bbf\u95ee\u6570\u7ec4\u7684\u5143\u7d20\u3002\u6570\u7ec4\u5143\u7d20\u7684\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002\u4f8b\u5982\uff1a numbers[0] = 10; [&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-66296","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66296","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=66296"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66296\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}