{"id":39505,"date":"2024-11-26T17:56:45","date_gmt":"2024-11-26T09:56:45","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39505\/"},"modified":"2024-11-26T17:56:45","modified_gmt":"2024-11-26T09:56:45","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e5%85%83%e7%b4%a0%e8%be%93%e5%85%a5%e5%88%b0%e6%95%b0%e7%bb%84%e9%87%8c","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39505\/","title":{"rendered":"JAVA\u600e\u4e48\u628a\u5143\u7d20\u8f93\u5165\u5230\u6570\u7ec4\u91cc"},"content":{"rendered":"<blockquote><p>\n  java \u6570\u7ec4\u8f93\u5165\u5143\u7d20\u6709 6 \u79cd\u65b9\u6cd5\uff1a1) \u76f4\u63a5\u8d4b\u503c\uff1b2) \u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1b3) for \u5faa\u73af\uff1b4) arrays.fill() \u65b9\u6cd5\uff1b5) stream \u548c collections.addall()\uff1b6) varargs (\u53d8\u957f\u53c2\u6570)\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111611491192508.jpg\" class=\"aligncenter\" title=\"JAVA\u600e\u4e48\u628a\u5143\u7d20\u8f93\u5165\u5230\u6570\u7ec4\u91cc\u63d2\u56fe\" alt=\"JAVA\u600e\u4e48\u628a\u5143\u7d20\u8f93\u5165\u5230\u6570\u7ec4\u91cc\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5c06\u5143\u7d20\u8f93\u5165\u5230 Java \u6570\u7ec4\u4e2d<\/strong><\/p>\n<p><strong>\u76f4\u63a5\u8d4b\u503c\uff1a<\/strong><\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a<\/strong><\/p>\n<pre>int[] arr = new int[]{1, 2, 3, 4, 5};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u901a\u8fc7 for \u5faa\u73af\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr = new int[5];\nfor (int i = 0; i &lt; arr.length; i++) {\n  arr[i] = i + 1;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u5de5\u5177\u7c7b\uff1a<\/strong><br \/>Java 8 \u4e2d\u7684 Arrays \u7c7b\u63d0\u4f9b\u4e86 fill() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5feb\u901f\u7528\u6307\u5b9a\u503c\u586b\u5145\u6570\u7ec4\uff1a<\/p>\n<pre>int[] arr = new int[5];\nArrays.fill(arr, 5);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 Stream \u548c Collections.addAll() \u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre>List&lt;Integer&gt; list = Arrays.asList(1, 2, 3, 4, 5);\nint[] arr = new int[list.size()];\nCollections.addAll(arr, list);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 varargs (\u53d8\u957f\u53c2\u6570)\uff1a<\/strong><\/p>\n<pre>int[] arr = createArray(1, 2, 3, 4, 5);\n\nprivate static int[] createArray(int... numbers) {\n  return numbers;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fJAVA\u600e\u4e48\u628a\u5143\u7d20\u8f93\u5165\u5230\u6570\u7ec4\u91cc\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\u8f93\u5165\u5143\u7d20\u6709 6 \u79cd\u65b9\u6cd5\uff1a1) \u76f4\u63a5\u8d4b\u503c\uff1b2) \u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1b3) for \u5faa\u73af\uff1b4) arrays.fill() \u65b9\u6cd5\uff1b5) stream \u548c collections.addall()\uff1b6) varargs (\u53d8\u957f\u53c2\u6570)\u3002 \u5982\u4f55\u5c06\u5143\u7d20\u8f93\u5165\u5230 Java \u6570\u7ec4\u4e2d \u76f4\u63a5\u8d4b\u503c\uff1a int[] arr = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\uff1a int[] arr = new int[]{1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 \u901a\u8fc7 for \u5faa\u73af\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr = new int[5]; for (int i = 0; i &lt; [&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-39505","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39505","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=39505"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39505\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}