{"id":37748,"date":"2024-11-26T15:29:38","date_gmt":"2024-11-26T07:29:38","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37748\/"},"modified":"2024-11-26T15:29:38","modified_gmt":"2024-11-26T07:29:38","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e6%95%b0%e6%8d%ae%e6%94%be%e5%85%a5%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37748\/","title":{"rendered":"java\u600e\u4e48\u628a\u6570\u636e\u653e\u5165\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u6709\u591a\u79cd\u5c06\u6570\u636e\u653e\u5165\u6570\u7ec4\u7684\u65b9\u6cd5\uff1a\u76f4\u63a5\u8d4b\u503c\u4f7f\u7528 arrays.fill()\u4f7f\u7528\u5faa\u73af\u4f7f\u7528 toarray()\u4f7f\u7528 varargs\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111309542864353.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u628a\u6570\u636e\u653e\u5165\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u600e\u4e48\u628a\u6570\u636e\u653e\u5165\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5c06\u6570\u636e\u653e\u5165\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u636e\u653e\u5165\u6570\u7ec4\u4e2d\u3002<\/p>\n<p><strong>1. \u76f4\u63a5\u8d4b\u503c<\/strong><\/p>\n<p>\u8fd9\u662f\u6700\u7b80\u5355\u7684\u5c06\u6570\u636e\u653e\u5165\u6570\u7ec4\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u76f4\u63a5\u7ed9\u6570\u7ec4\u5143\u7d20\u8d4b\u503c\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] myArray = new int[5];\nmyArray[0] = 10;\nmyArray[1] = 20;\nmyArray[2] = 30;\nmyArray[3] = 40;\nmyArray[4] = 50;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 Arrays.fill()<\/strong><\/p>\n<p>\u6b64\u65b9\u6cd5\u5c06\u6570\u7ec4\u7684\u6307\u5b9a\u8303\u56f4\u586b\u5145\u4e3a\u6307\u5b9a\u503c\uff1a<\/p>\n<pre>int[] myArray = new int[5];\nArrays.fill(myArray, 10); \/\/ \u5c06\u6570\u7ec4\u4e2d\u6240\u6709\u5143\u7d20\u586b\u5145\u4e3a 10<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528\u5faa\u73af<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u904d\u5386\u6570\u7ec4\u5e76\u9010\u4e2a\u8d4b\u503c\uff1a<\/p>\n<pre>int[] myArray = new int[5];\nfor (int i = 0; i &lt; myArray.length; i++) {\n    myArray[i] = i * 10; \/\/ \u5c06\u6570\u7ec4\u4e2d\u6bcf\u4e2a\u5143\u7d20\u8bbe\u7f6e\u4e3a i \u7684\u5341\u500d\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528 toArray()<\/strong><\/p>\n<p>\u5982\u679c\u5df2\u6709\u96c6\u5408\uff0c\u53ef\u4ee5\u4f7f\u7528 toArray() \u65b9\u6cd5\u5c06\u5176\u8f6c\u6362\u4e3a\u6570\u7ec4\uff1a<\/p>\n<pre>List&lt;Integer&gt; myList = new ArrayList&lt;&gt;();\nmyList.add(10);\nmyList.add(20);\nmyList.add(30);\n\nint[] myArray = myList.toArray(new Integer[myList.size()]); \/\/ \u5c06 myList \u8f6c\u6362\u4e3a\u4e00\u4e2a int[]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>5. \u4f7f\u7528 varargs<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 varargs \u4f20\u9012\u53ef\u53d8\u6570\u91cf\u7684\u53c2\u6570\u5e76\u5c06\u5176\u5206\u914d\u7ed9\u6570\u7ec4\uff1a<\/p>\n<pre>int[] myArray = {10, 20, 30, 40, 50};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u628a\u6570\u636e\u653e\u5165\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\u6709\u591a\u79cd\u5c06\u6570\u636e\u653e\u5165\u6570\u7ec4\u7684\u65b9\u6cd5\uff1a\u76f4\u63a5\u8d4b\u503c\u4f7f\u7528 arrays.fill()\u4f7f\u7528\u5faa\u73af\u4f7f\u7528 toarray()\u4f7f\u7528 varargs \u5982\u4f55\u5728 Java \u4e2d\u5c06\u6570\u636e\u653e\u5165\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u636e\u653e\u5165\u6570\u7ec4\u4e2d\u3002 1. \u76f4\u63a5\u8d4b\u503c \u8fd9\u662f\u6700\u7b80\u5355\u7684\u5c06\u6570\u636e\u653e\u5165\u6570\u7ec4\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u76f4\u63a5\u7ed9\u6570\u7ec4\u5143\u7d20\u8d4b\u503c\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] myArray = new int[5]; myArray[0] = 10; myArray[1] = 20; myArray[2] = 30; myArray[3] = 40; myArray[4] = 50; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Arrays.fill() \u6b64\u65b9\u6cd5\u5c06\u6570\u7ec4\u7684\u6307\u5b9a\u8303\u56f4\u586b\u5145\u4e3a\u6307\u5b9a\u503c\uff1a int[] myArray = new int[5]; Arrays.fill(myArray, 10); \/\/ \u5c06\u6570\u7ec4\u4e2d\u6240\u6709\u5143\u7d20\u586b\u5145\u4e3a 10 \u767b\u5f55\u540e\u590d\u5236 3. \u4f7f\u7528\u5faa\u73af \u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u904d\u5386\u6570\u7ec4\u5e76\u9010\u4e2a\u8d4b\u503c\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-37748","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37748","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=37748"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37748\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37748"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}