{"id":36953,"date":"2024-11-26T08:02:55","date_gmt":"2024-11-26T00:02:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/36953\/"},"modified":"2024-11-26T08:02:55","modified_gmt":"2024-11-26T00:02:55","slug":"java%e7%b1%bb%e6%80%8e%e4%b9%88%e5%88%9b%e5%bb%ba%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/36953\/","title":{"rendered":"java\u7c7b\u600e\u4e48\u521b\u5efa\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u521b\u5efa\u6570\u7ec4\u7684\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\u662f\uff1a\u4f7f\u7528\u6570\u7ec4\u6587\u5b57\uff1a\u76f4\u63a5\u5b9a\u4e49\u5143\u7d20\uff0c\u8bed\u6cd5\u4e3a datatype[] arrayname = {value1, value2, &#8230;, valuen}\u3002\u4f7f\u7528 new \u5173\u952e\u5b57\uff1a\u52a8\u6001\u521b\u5efa\u6570\u7ec4\uff0c\u8bed\u6cd5\u4e3a datatype[] arrayname = new datatype[size]\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111222122597407.jpg\" class=\"aligncenter\" title=\"java\u7c7b\u600e\u4e48\u521b\u5efa\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u7c7b\u600e\u4e48\u521b\u5efa\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5728 Java \u4e2d\u521b\u5efa\u6570\u7ec4<\/strong><\/p>\n<p>Java \u4e2d\u521b\u5efa\u6570\u7ec4\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528\u6570\u7ec4\u6587\u5b57<\/strong><\/p>\n<ul>\n<li>\u6570\u7ec4\u6587\u5b57\u5141\u8bb8\u60a8\u76f4\u63a5\u5b9a\u4e49\u6570\u7ec4\u5143\u7d20\u3002<\/li>\n<li>\u8bed\u6cd5\uff1adataType[] arrayName = {value1, value2, &#8230;, valueN}<\/li>\n<li>\n<p>\u793a\u4f8b\uff1a\u521b\u5efa\u4e00\u4e2a\u6574\u6570\u6570\u7ec4\u5e76\u5c06\u5176\u547d\u540d\u4e3a numbers\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<\/ul>\n<p><strong>2. \u4f7f\u7528 new \u5173\u952e\u5b57<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528 new \u5173\u952e\u5b57\u53ef\u4ee5\u52a8\u6001\u521b\u5efa\u6570\u7ec4\uff0c\u5141\u8bb8\u60a8\u5728\u8fd0\u884c\u65f6\u6307\u5b9a\u6570\u7ec4\u5927\u5c0f\u3002<\/li>\n<li>\u8bed\u6cd5\uff1adataType[] arrayName = new dataType[size];<\/li>\n<li>\n<p>\u793a\u4f8b\uff1a\u521b\u5efa\u4e00\u4e2a\u5305\u542b 10 \u4e2a\u5143\u7d20\u7684\u6d6e\u70b9\u6570\u7ec4\uff1a<\/p>\n<pre>float[] floats = new float[10];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ul>\n<p><strong>\u6570\u7ec4\u7684\u8bbf\u95ee\u548c\u4fee\u6539<\/strong><\/p>\n<ul>\n<li>\u8981\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u8bf7\u4f7f\u7528\u65b9\u62ec\u53f7 []\uff1aarrayName[index]<\/li>\n<li>\u8981\u4fee\u6539\u6570\u7ec4\u5143\u7d20\uff0c\u53ea\u9700\u5c06\u503c\u5206\u914d\u7ed9\u9002\u5f53\u7684\u7d22\u5f15\uff1aarrayName[index] = value<\/li>\n<\/ul>\n<p><strong>\u4f8b\u5b50<\/strong><\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\n\n\/\/ \u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e09\u4e2a\u5143\u7d20\nint thirdElement = numbers[2];\n\n\/\/ \u4fee\u6539\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\nnumbers[0] = 0;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u6570\u7ec4\u4e00\u65e6\u521b\u5efa\uff0c\u5176\u5927\u5c0f\u5c31\u65e0\u6cd5\u66f4\u6539\u3002<\/li>\n<li>\u6570\u7ec4\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002<\/li>\n<li>\u5c1d\u8bd5\u8bbf\u95ee\u8d85\u51fa\u6570\u7ec4\u8303\u56f4\u7684\u7d22\u5f15\u4f1a\u5bfc\u81f4 ArrayIndexOutOfBoundsException\u3002<\/li>\n<li>\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0c\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u5728\u521b\u5efa\u65f6\u88ab\u521d\u59cb\u5316\u4e3a\u9ed8\u8ba4\u503c\uff08\u5bf9\u4e8e\u6570\u5b57\u7c7b\u578b\u4e3a 0\uff0c\u5bf9\u4e8e\u5e03\u5c14\u7c7b\u578b\u4e3a false\uff09\u3002<\/li>\n<li>\u5bf9\u4e8e\u5bf9\u8c61\u5f15\u7528\uff0c\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u5728\u521b\u5efa\u65f6\u88ab\u521d\u59cb\u5316\u4e3a null\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u7c7b\u600e\u4e48\u521b\u5efa\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\u521b\u5efa\u6570\u7ec4\u7684\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\u662f\uff1a\u4f7f\u7528\u6570\u7ec4\u6587\u5b57\uff1a\u76f4\u63a5\u5b9a\u4e49\u5143\u7d20\uff0c\u8bed\u6cd5\u4e3a datatype[] arrayname = {value1, value2, &#8230;, valuen}\u3002\u4f7f\u7528 new \u5173\u952e\u5b57\uff1a\u52a8\u6001\u521b\u5efa\u6570\u7ec4\uff0c\u8bed\u6cd5\u4e3a datatype[] arrayname = new datatype[size]\u3002 \u5728 Java \u4e2d\u521b\u5efa\u6570\u7ec4 Java \u4e2d\u521b\u5efa\u6570\u7ec4\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a 1. \u4f7f\u7528\u6570\u7ec4\u6587\u5b57 \u6570\u7ec4\u6587\u5b57\u5141\u8bb8\u60a8\u76f4\u63a5\u5b9a\u4e49\u6570\u7ec4\u5143\u7d20\u3002 \u8bed\u6cd5\uff1adataType[] arrayName = {value1, value2, &#8230;, valueN} \u793a\u4f8b\uff1a\u521b\u5efa\u4e00\u4e2a\u6574\u6570\u6570\u7ec4\u5e76\u5c06\u5176\u547d\u540d\u4e3a numbers\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 new \u5173\u952e\u5b57 \u4f7f\u7528 new \u5173\u952e\u5b57\u53ef\u4ee5\u52a8\u6001\u521b\u5efa\u6570\u7ec4\uff0c\u5141\u8bb8\u60a8\u5728\u8fd0\u884c\u65f6\u6307\u5b9a\u6570\u7ec4\u5927\u5c0f\u3002 \u8bed\u6cd5\uff1adataType[] arrayName = new [&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-36953","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36953","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=36953"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36953\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=36953"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=36953"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=36953"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}