{"id":34792,"date":"2024-11-26T12:07:27","date_gmt":"2024-11-26T04:07:27","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34792\/"},"modified":"2024-11-26T12:07:27","modified_gmt":"2024-11-26T04:07:27","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e8%b0%83%e7%94%a8%e7%b1%bb%e4%b8%ad%e7%9a%84%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34792\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u8c03\u7528\u7c7b\u4e2d\u7684\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u4f7f\u7528\u6570\u7ec4\u53d8\u91cf\u540d\u548c\u65b9\u62ec\u53f7\u5185\u7684\u7d22\u5f15\u53ef\u8c03\u7528\u7c7b\u4e2d\u7684\u6570\u7ec4\uff1a\u521b\u5efa\u4e00\u4e2a\u7c7b\u5e76\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\u3002\u5728\u4e3b\u65b9\u6cd5\u4e2d\u521b\u5efa\u4e00\u4e2a\u8be5\u7c7b\u7684\u5bf9\u8c61\u3002\u4f7f\u7528\u65b9\u62ec\u53f7\u7d22\u5f15\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u4e0d\u80fd\u8d85\u51fa\u6570\u7ec4\u957f\u5ea6\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110303043560804.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u600e\u4e48\u8c03\u7528\u7c7b\u4e2d\u7684\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u4e2d\u600e\u4e48\u8c03\u7528\u7c7b\u4e2d\u7684\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u8c03\u7528\u7c7b\u4e2d\u7684\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u79cd\u5185\u7f6e\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u5143\u7d20\u5217\u8868\u3002\u8981\u8c03\u7528\u7c7b\u4e2d\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u53d8\u91cf\u540d\uff0c\u540e\u8ddf\u65b9\u62ec\u53f7\u5185\u7684\u7d22\u5f15\u3002<\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>class MyClass {\n\n    int[] myArray = {1, 2, 3, 4, 5};\n\n}\n\npublic class Main {\n\n    public static void main(String[] args) {\n        MyClass myObj = new MyClass();\n\n        \/\/ \u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\n        System.out.println(myObj.myArray[0]); \/\/ \u8f93\u51fa\uff1a1\n\n        \/\/ \u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\n        System.out.println(myObj.myArray[myObj.myArray.length - 1]); \/\/ \u8f93\u51fa\uff1a5\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ol>\n<li> <strong>\u521b\u5efa\u4e00\u4e2a\u7c7b<\/strong>\uff08MyClass\uff09\u5e76\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\uff08myArray\uff09\u3002<\/li>\n<li> <strong>\u5728\u4e3b\u65b9\u6cd5\u4e2d<\/strong>\uff0c\u521b\u5efa\u4e00\u4e2a MyClass \u5bf9\u8c61\uff08myObj\uff09\u3002<\/li>\n<li> <strong>\u4f7f\u7528\u65b9\u62ec\u53f7\u7d22\u5f15<\/strong>\uff08myObj.myArray[0] \u548c myObj.myArray[myObj.myArray.length &#8211; 1]\uff09\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002<\/li>\n<\/ol>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u6570\u7ec4\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u56e0\u6b64\u8981\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u9700\u8981\u4f7f\u7528\u7d22\u5f15 0\u3002<\/li>\n<li>\u6570\u7ec4\u7d22\u5f15\u4e0d\u80fd\u8d85\u51fa\u6570\u7ec4\u957f\u5ea6\uff0c\u5426\u5219\u4f1a\u5f15\u53d1\u4e00\u4e2a ArrayIndexOutOfBoundsException\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u8c03\u7528\u7c7b\u4e2d\u7684\u6570\u7ec4\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\uff0c\u4f7f\u7528\u6570\u7ec4\u53d8\u91cf\u540d\u548c\u65b9\u62ec\u53f7\u5185\u7684\u7d22\u5f15\u53ef\u8c03\u7528\u7c7b\u4e2d\u7684\u6570\u7ec4\uff1a\u521b\u5efa\u4e00\u4e2a\u7c7b\u5e76\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\u3002\u5728\u4e3b\u65b9\u6cd5\u4e2d\u521b\u5efa\u4e00\u4e2a\u8be5\u7c7b\u7684\u5bf9\u8c61\u3002\u4f7f\u7528\u65b9\u62ec\u53f7\u7d22\u5f15\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u4e0d\u80fd\u8d85\u51fa\u6570\u7ec4\u957f\u5ea6\u3002 \u5982\u4f55\u5728 Java \u4e2d\u8c03\u7528\u7c7b\u4e2d\u7684\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u79cd\u5185\u7f6e\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u5143\u7d20\u5217\u8868\u3002\u8981\u8c03\u7528\u7c7b\u4e2d\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u53d8\u91cf\u540d\uff0c\u540e\u8ddf\u65b9\u62ec\u53f7\u5185\u7684\u7d22\u5f15\u3002 \u793a\u4f8b\uff1a class MyClass { int[] myArray = {1, 2, 3, 4, 5}; } public class Main { public static void main(String[] args) { MyClass myObj = new MyClass(); \/\/ \u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20 System.out.println(myObj.myArray[0]); \/\/ \u8f93\u51fa\uff1a1 \/\/ \u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20 System.out.println(myObj.myArray[myObj.myArray.length &#8211; 1]); \/\/ \u8f93\u51fa\uff1a5 } } \u767b\u5f55\u540e\u590d\u5236 \u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff1a [&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-34792","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34792","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=34792"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34792\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=34792"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=34792"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=34792"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}