{"id":65262,"date":"2025-05-03T13:56:07","date_gmt":"2025-05-03T05:56:07","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65262\/"},"modified":"2025-05-03T13:56:07","modified_gmt":"2025-05-03T05:56:07","slug":"java%e6%80%8e%e4%b9%88%e5%86%99%e5%85%a5%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65262\/","title":{"rendered":"java\u600e\u4e48\u5199\u5165\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u7b54\u6848\uff1a\u53ef\u7528\u4ee5\u4e0b\u65b9\u6cd5\u5199\u5165 java \u6570\u7ec4\uff1a\u76f4\u63a5\u8d4b\u503c\u5faa\u73af\u8d4b\u503c\u4f7f\u7528 arrays.fill()\u4f7f\u7528\u6d41\u5f0f api\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111215364773328.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u5199\u5165\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u600e\u4e48\u5199\u5165\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u7528 Java \u5199\u5165\u6570\u7ec4<\/strong><\/p>\n<p><strong>\u76f4\u63a5\u8d4b\u503c<\/strong><br \/>\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u662f\u7528 = \u64cd\u4f5c\u7b26\u4e3a\u6570\u7ec4\u5143\u7d20\u8d4b\u503c\u3002<\/p>\n<pre>int[] array = new int[5];\narray[0] = 1;\narray[1] = 2;\narray[2] = 3;\narray[3] = 4;\narray[4] = 5;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u901a\u8fc7\u5faa\u73af\u8d4b\u503c<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528 for \u6216 while \u5faa\u73af\u904d\u5386\u6570\u7ec4\u5e76\u4e3a\u6bcf\u4e2a\u5143\u7d20\u8d4b\u503c\u3002<\/p>\n<pre>int[] array = new int[5];\nfor (int i = 0; i &lt; array.length; i++) {\n  array[i] = i + 1;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 Arrays.fill()<\/strong><br \/>\u53ef\u4ee5\u5229\u7528 Arrays.fill() \u65b9\u6cd5\u4e3a\u6570\u7ec4\u6240\u6709\u5143\u7d20\u8d4b\u503c\u76f8\u540c\u7684\u503c\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] array = new int[5];\nArrays.fill(array, 10); \/\/ \u5c06\u6570\u7ec4\u6240\u6709\u5143\u7d20\u8d4b\u503c\u4e3a 10<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u6d41\u5f0f API<\/strong><br \/>Java 8 \u5f15\u5165\u4e86\u6d41\u5f0f API\uff0c\u53ef\u4ee5\u901a\u8fc7\u6d41\u5f0f API \u4e3a\u6570\u7ec4\u5143\u7d20\u8d4b\u503c\u3002<\/p>\n<pre>int[] array = new int[5];\nIntStream.range(0, array.length).forEach(i -&gt; array[i] = i + 1);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93<\/strong><br \/>\u6709\u4e00\u4e9b\u7b2c\u4e09\u65b9\u5e93\u63d0\u4f9b\u4e86\u66f4\u7b80\u6d01\u7684\u8bed\u6cd5\u6765\u5199\u5165\u6570\u7ec4\uff0c\u4f8b\u5982 Guava\u3002<\/p>\n<pre>import com.google.common.primitives.Ints;\nint[] array = Ints.toArray(Arrays.asList(1, 2, 3, 4, 5));<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5199\u5165\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b54\u6848\uff1a\u53ef\u7528\u4ee5\u4e0b\u65b9\u6cd5\u5199\u5165 java \u6570\u7ec4\uff1a\u76f4\u63a5\u8d4b\u503c\u5faa\u73af\u8d4b\u503c\u4f7f\u7528 arrays.fill()\u4f7f\u7528\u6d41\u5f0f api\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93 \u5982\u4f55\u7528 Java \u5199\u5165\u6570\u7ec4 \u76f4\u63a5\u8d4b\u503c\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u662f\u7528 = \u64cd\u4f5c\u7b26\u4e3a\u6570\u7ec4\u5143\u7d20\u8d4b\u503c\u3002 int[] array = new int[5]; array[0] = 1; array[1] = 2; array[2] = 3; array[3] = 4; array[4] = 5; \u767b\u5f55\u540e\u590d\u5236 \u901a\u8fc7\u5faa\u73af\u8d4b\u503c\u53ef\u4ee5\u4f7f\u7528 for \u6216 while \u5faa\u73af\u904d\u5386\u6570\u7ec4\u5e76\u4e3a\u6bcf\u4e2a\u5143\u7d20\u8d4b\u503c\u3002 int[] array = new int[5]; for (int i = 0; i &lt; array.length; i++) { array[i] = 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-65262","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65262","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=65262"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65262\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}