{"id":35301,"date":"2024-11-26T09:35:41","date_gmt":"2024-11-26T01:35:41","guid":{"rendered":"https:\/\/fwq.ai\/blog\/35301\/"},"modified":"2024-11-26T09:35:41","modified_gmt":"2024-11-26T01:35:41","slug":"java%e6%95%b0%e7%bb%84%e5%88%9d%e5%a7%8b%e5%8c%96%e4%b8%ba0%e6%80%8e%e4%b9%88%e5%8a%9e","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/35301\/","title":{"rendered":"java\u6570\u7ec4\u521d\u59cb\u5316\u4e3a0\u600e\u4e48\u529e"},"content":{"rendered":"<blockquote><p>\n  java \u6570\u7ec4\u9ed8\u8ba4\u521d\u59cb\u5316\u4e3a 0 \u6216 null\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u7c7b\u578b\u3002\u89e3\u51b3\u65b9\u6cd5\u6709\u4e09\u4e2a\uff1a\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u3001\u5faa\u73af\u9010\u4e2a\u8d4b\u503c\u6216\u4f7f\u7528 arrays.fill() \u586b\u5145\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110323490476957.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u521d\u59cb\u5316\u4e3a0\u600e\u4e48\u529e\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u521d\u59cb\u5316\u4e3a0\u600e\u4e48\u529e\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u6570\u7ec4\u521d\u59cb\u5316\u4e3a 0 \u7684\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u5982\u679c\u6ca1\u6709\u660e\u786e\u6307\u5b9a\u503c\uff0c\u6570\u7ec4\u5143\u7d20\u4f1a\u9ed8\u8ba4\u521d\u59cb\u5316\u4e3a 0\uff08\u5bf9\u4e8e\u6570\u5b57\u7c7b\u578b\uff09\u6216 null\uff08\u5bf9\u4e8e\u5bf9\u8c61\u7c7b\u578b\uff09\u3002\u8fd9\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4e0d\u662f\u671f\u671b\u7684\u884c\u4e3a\u3002<\/p>\n<p><strong>\u539f\u56e0\uff1a<\/strong><\/p>\n<p>Java \u6570\u7ec4\u5728\u521b\u5efa\u65f6\u5206\u914d\u5185\u5b58\uff0c\u5e76\u4e3a\u5143\u7d20\u5206\u914d\u9ed8\u8ba4\u503c\u3002\u5bf9\u4e8e\u6570\u5b57\u7c7b\u578b\uff0c\u9ed8\u8ba4\u503c\u662f 0\uff0c\u800c\u5bf9\u4e8e\u5bf9\u8c61\u7c7b\u578b\uff0c\u9ed8\u8ba4\u503c\u662f null\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<p>\u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5c06 Java \u6570\u7ec4\u5143\u7d20\u521d\u59cb\u5316\u4e3a\u975e\u9ed8\u8ba4\u503c\uff1a<\/p>\n<ul>\n<li> <strong>\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a<\/strong>\u76f4\u63a5\u5728\u6570\u7ec4\u58f0\u660e\u4e2d\u6307\u5b9a\u5143\u7d20\u503c\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>int[] numbers = {1, 2, 3, 4, 5};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li> <strong>\u4f7f\u7528\u5faa\u73af\uff1a<\/strong>\u4f7f\u7528 for \u6216 while \u5faa\u73af\u9010\u4e2a\u4e3a\u5143\u7d20\u8d4b\u503c\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>int[] numbers = new int[5];\nfor (int i = 0; i &lt; numbers.length; i++) {\n    numbers[i] = i + 1;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li> <strong>\u4f7f\u7528 Arrays.fill()\uff1a<\/strong>Java \u63d0\u4f9b\u4e86\u4e00\u4e2a Arrays.fill() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u6570\u7ec4\u5143\u7d20\u586b\u5145\u4e3a\u6307\u5b9a\u503c\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>int[] numbers = new int[5];\nArrays.fill(numbers, 1); \/\/ \u5c06\u6570\u7ec4\u5143\u7d20\u5168\u90e8\u586b\u5145\u4e3a 1<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u9009\u62e9\u6700\u5408\u9002\u7684\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<p>\u6700\u4f73\u89e3\u51b3\u65b9\u6848\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u5177\u4f53\u573a\u666f\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u6570\u7ec4\u5143\u7d20\u7684\u6570\u91cf\u8f83\u5c11\uff0c\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u3002<\/li>\n<li>\u5982\u679c\u9700\u8981\u52a8\u6001\u521d\u59cb\u5316\u6570\u7ec4\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u6216 Arrays.fill() \u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u521d\u59cb\u5316\u4e3a0\u600e\u4e48\u529e\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>java \u6570\u7ec4\u9ed8\u8ba4\u521d\u59cb\u5316\u4e3a 0 \u6216 null\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u7c7b\u578b\u3002\u89e3\u51b3\u65b9\u6cd5\u6709\u4e09\u4e2a\uff1a\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u3001\u5faa\u73af\u9010\u4e2a\u8d4b\u503c\u6216\u4f7f\u7528 arrays.fill() \u586b\u5145\u3002 Java \u6570\u7ec4\u521d\u59cb\u5316\u4e3a 0 \u7684\u89e3\u51b3\u65b9\u6848 \u5728 Java \u4e2d\uff0c\u5982\u679c\u6ca1\u6709\u660e\u786e\u6307\u5b9a\u503c\uff0c\u6570\u7ec4\u5143\u7d20\u4f1a\u9ed8\u8ba4\u521d\u59cb\u5316\u4e3a 0\uff08\u5bf9\u4e8e\u6570\u5b57\u7c7b\u578b\uff09\u6216 null\uff08\u5bf9\u4e8e\u5bf9\u8c61\u7c7b\u578b\uff09\u3002\u8fd9\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4e0d\u662f\u671f\u671b\u7684\u884c\u4e3a\u3002 \u539f\u56e0\uff1a Java \u6570\u7ec4\u5728\u521b\u5efa\u65f6\u5206\u914d\u5185\u5b58\uff0c\u5e76\u4e3a\u5143\u7d20\u5206\u914d\u9ed8\u8ba4\u503c\u3002\u5bf9\u4e8e\u6570\u5b57\u7c7b\u578b\uff0c\u9ed8\u8ba4\u503c\u662f 0\uff0c\u800c\u5bf9\u4e8e\u5bf9\u8c61\u7c7b\u578b\uff0c\u9ed8\u8ba4\u503c\u662f null\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u89e3\u51b3\u65b9\u6848\uff1a \u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5c06 Java \u6570\u7ec4\u5143\u7d20\u521d\u59cb\u5316\u4e3a\u975e\u9ed8\u8ba4\u503c\uff1a \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a\u76f4\u63a5\u5728\u6570\u7ec4\u58f0\u660e\u4e2d\u6307\u5b9a\u5143\u7d20\u503c\u3002\u4f8b\u5982\uff1a int[] numbers = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u5faa\u73af\uff1a\u4f7f\u7528 for \u6216 while \u5faa\u73af\u9010\u4e2a\u4e3a\u5143\u7d20\u8d4b\u503c\u3002\u4f8b\u5982\uff1a int[] numbers = new int[5]; for (int i = 0; i &lt; numbers.length; i++) [&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-35301","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35301","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=35301"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35301\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=35301"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=35301"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=35301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}