{"id":64328,"date":"2025-05-03T15:41:05","date_gmt":"2025-05-03T07:41:05","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64328\/"},"modified":"2025-05-03T15:41:05","modified_gmt":"2025-05-03T07:41:05","slug":"java%e6%80%8e%e4%b9%88%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84%e5%88%9d%e5%a7%8b%e5%8c%96-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64328\/","title":{"rendered":"java\u600e\u4e48\u5b57\u7b26\u4e32\u6570\u7ec4\u521d\u59cb\u5316"},"content":{"rendered":"<blockquote><p>\n  java \u5b57\u7b26\u4e32\u6570\u7ec4\u521d\u59cb\u5316\u65b9\u6cd5\uff1a\u76f4\u63a5\u8d4b\u503c\uff1b\u4f7f\u7528 arrays.fill() \u586b\u5145\u76f8\u540c\u503c\uff1b\u4f7f\u7528\u5faa\u73af\u9010\u4e2a\u8d4b\u503c\uff1b\u4f7f\u7528 string[] \u6784\u9020\u51fd\u6570\u4e00\u6b21\u6027\u8d4b\u503c\uff1b\u4ece\u5176\u4ed6\u6570\u7ec4\u590d\u5236\uff1b\u4f7f\u7528 stream api \u8d4b\u503c\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110305244049054.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u5b57\u7b26\u4e32\u6570\u7ec4\u521d\u59cb\u5316\u63d2\u56fe\" alt=\"java\u600e\u4e48\u5b57\u7b26\u4e32\u6570\u7ec4\u521d\u59cb\u5316\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4e3a Java \u8fdb\u884c\u521d\u59cb\u5316<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u4e3a\u5b57\u7b26\u4e32\u6570\u7ec4\u8fdb\u884c\u521d\u59cb\u5316\uff1a<\/p>\n<p><strong>1. \u76f4\u63a5\u8d4b\u503c<\/strong><\/p>\n<p>\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u76f4\u63a5\u4e3a\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u8d4b\u503c\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>String[] names = { \"John\", \"Alice\", \"Bob\" };<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 Arrays.fill()<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\u4e3a\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u586b\u5145\u76f8\u540c\u7684\u503c\uff1a<\/p>\n<pre>String[] names = new String[3];\nArrays.fill(names, \"Unknown\");<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528\u5faa\u73af<\/strong><\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7\u5faa\u73af\u6765\u4e3a\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u8d4b\u503c\uff1a<\/p>\n<pre>String[] names = new String[3];\nfor (int i = 0; i &lt; names.length; i++) {\n    names[i] = \"Guest\" + (i + 1);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528 String[] \u6784\u9020\u51fd\u6570<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 String[] \u6784\u9020\u51fd\u6570\u6765\u4e00\u6b21\u6027\u4e3a\u6570\u7ec4\u5143\u7d20\u8d4b\u503c\uff1a<\/p>\n<pre>String[] names = new String[] { \"John\", \"Alice\", \"Bob\" };<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>5. \u4ece\u5176\u4ed6\u6570\u7ec4\u590d\u5236<\/strong><\/p>\n<p>\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5b57\u7b26\u4e32\u6570\u7ec4\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u5b57\u7b26\u4e32\u6570\u7ec4\u4e2d\uff1a<\/p>\n<pre>String[] originalNames = { \"John\", \"Alice\", \"Bob\" };\nString[] newNames = Arrays.copyOf(originalNames, originalNames.length);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>6. \u4f7f\u7528 Stream<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 Stream API \u4e3a\u6570\u7ec4\u5143\u7d20\u8d4b\u503c\uff1a<\/p>\n<pre>String[] names = Stream.of(\"John\", \"Alice\", \"Bob\").toArray(String[]::new);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u521d\u59cb\u5316\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>java \u5b57\u7b26\u4e32\u6570\u7ec4\u521d\u59cb\u5316\u65b9\u6cd5\uff1a\u76f4\u63a5\u8d4b\u503c\uff1b\u4f7f\u7528 arrays.fill() \u586b\u5145\u76f8\u540c\u503c\uff1b\u4f7f\u7528\u5faa\u73af\u9010\u4e2a\u8d4b\u503c\uff1b\u4f7f\u7528 string[] \u6784\u9020\u51fd\u6570\u4e00\u6b21\u6027\u8d4b\u503c\uff1b\u4ece\u5176\u4ed6\u6570\u7ec4\u590d\u5236\uff1b\u4f7f\u7528 stream api \u8d4b\u503c\u3002 \u5982\u4f55\u4e3a Java \u8fdb\u884c\u521d\u59cb\u5316 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u4e3a\u5b57\u7b26\u4e32\u6570\u7ec4\u8fdb\u884c\u521d\u59cb\u5316\uff1a 1. \u76f4\u63a5\u8d4b\u503c \u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u76f4\u63a5\u4e3a\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u8d4b\u503c\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b String[] names = { &#8220;John&#8221;, &#8220;Alice&#8221;, &#8220;Bob&#8221; }; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Arrays.fill() \u53ef\u4ee5\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\u4e3a\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u586b\u5145\u76f8\u540c\u7684\u503c\uff1a String[] names = new String[3]; Arrays.fill(names, &#8220;Unknown&#8221;); \u767b\u5f55\u540e\u590d\u5236 3. \u4f7f\u7528\u5faa\u73af \u53ef\u4ee5\u901a\u8fc7\u5faa\u73af\u6765\u4e3a\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u8d4b\u503c\uff1a String[] names = new String[3]; for (int i = 0; [&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-64328","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64328","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=64328"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64328\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}