{"id":66735,"date":"2025-05-03T09:38:12","date_gmt":"2025-05-03T01:38:12","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66735\/"},"modified":"2025-05-03T09:38:12","modified_gmt":"2025-05-03T01:38:12","slug":"java%e6%80%8e%e4%b9%88%e7%bb%99%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84%e8%b5%8b%e5%80%bc6-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66735\/","title":{"rendered":"java\u600e\u4e48\u7ed9\u5b57\u7b26\u4e32\u6570\u7ec4\u8d4b\u503c6"},"content":{"rendered":"<blockquote><p>\n  java \u5b57\u7b26\u4e32\u6570\u7ec4\u8d4b\u503c\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528\u5b57\u9762\u91cf\uff1a\u7528\u5927\u62ec\u53f7 {} \u62ec\u8d77\u6765\u3002\u4f7f\u7528 new \u5173\u952e\u5b57\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u6570\u7ec4\u3002\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\uff1a\u7528\u76f8\u540c\u7684\u503c\u586b\u5145\u6570\u7ec4\u3002\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\uff1a\u4ece\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u590d\u5236\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111620512615050.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u7ed9\u5b57\u7b26\u4e32\u6570\u7ec4\u8d4b\u503c6\u63d2\u56fe\" alt=\"java\u600e\u4e48\u7ed9\u5b57\u7b26\u4e32\u6570\u7ec4\u8d4b\u503c6\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u7ed9 Java \u8d4b\u503c<\/strong><\/p>\n<p><strong>\u8d4b\u503c\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p>\u7ed9 Java \u5b57\u7b26\u4e32\u6570\u7ec4\u8d4b\u503c\u6709\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li> <strong>\u4f7f\u7528\u5b57\u9762\u91cf<\/strong>\uff1a\u7528\u5927\u62ec\u53f7 {} \u62ec\u8d77\u6765\uff0c\u4f8b\u5982\uff1aString[] arr = {&#8220;a&#8221;, &#8220;b&#8221;, &#8220;c&#8221;};<\/li>\n<li> <strong>\u4f7f\u7528 new \u5173\u952e\u5b57<\/strong>\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u6570\u7ec4\uff0c\u4f8b\u5982\uff1aString[] arr = new String[3];<\/li>\n<li> <strong>\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5<\/strong>\uff1a\u7528\u76f8\u540c\u7684\u503c\u586b\u5145\u6570\u7ec4\uff0c\u4f8b\u5982\uff1aArrays.fill(arr, &#8220;value&#8221;);<\/li>\n<li> <strong>\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5<\/strong>\uff1a\u4ece\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u590d\u5236\u5143\u7d20\uff0c\u4f8b\u5982\uff1aSystem.arraycopy(sourceArray, 0, arr, 0, length);<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p><strong>\u4f7f\u7528\u5b57\u9762\u91cf\uff1a<\/strong><\/p>\n<pre>String[] arr = {\"Alice\", \"Bob\", \"Charlie\"};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 new \u5173\u952e\u5b57\uff1a<\/strong><\/p>\n<pre>String[] arr = new String[3];\narr[0] = \"Alice\";\narr[1] = \"Bob\";\narr[2] = \"Charlie\";<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre>String[] arr = new String[3];\nArrays.fill(arr, \"value\");<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre>String[] sourceArr = {\"Alice\", \"Bob\", \"Charlie\"};\nString[] arr = new String[3];\nSystem.arraycopy(sourceArr, 0, arr, 0, 3);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u7ed9\u8d4b\u503c6\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\u8d4b\u503c\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528\u5b57\u9762\u91cf\uff1a\u7528\u5927\u62ec\u53f7 {} \u62ec\u8d77\u6765\u3002\u4f7f\u7528 new \u5173\u952e\u5b57\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u6570\u7ec4\u3002\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\uff1a\u7528\u76f8\u540c\u7684\u503c\u586b\u5145\u6570\u7ec4\u3002\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\uff1a\u4ece\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u590d\u5236\u5143\u7d20\u3002 \u5982\u4f55\u7ed9 Java \u8d4b\u503c \u8d4b\u503c\u65b9\u6cd5\uff1a \u7ed9 Java \u5b57\u7b26\u4e32\u6570\u7ec4\u8d4b\u503c\u6709\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a \u4f7f\u7528\u5b57\u9762\u91cf\uff1a\u7528\u5927\u62ec\u53f7 {} \u62ec\u8d77\u6765\uff0c\u4f8b\u5982\uff1aString[] arr = {&#8220;a&#8221;, &#8220;b&#8221;, &#8220;c&#8221;}; \u4f7f\u7528 new \u5173\u952e\u5b57\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u6570\u7ec4\uff0c\u4f8b\u5982\uff1aString[] arr = new String[3]; \u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\uff1a\u7528\u76f8\u540c\u7684\u503c\u586b\u5145\u6570\u7ec4\uff0c\u4f8b\u5982\uff1aArrays.fill(arr, &#8220;value&#8221;); \u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\uff1a\u4ece\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u590d\u5236\u5143\u7d20\uff0c\u4f8b\u5982\uff1aSystem.arraycopy(sourceArray, 0, arr, 0, length); \u793a\u4f8b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u4f7f\u7528\u5b57\u9762\u91cf\uff1a String[] arr = {&#8220;Alice&#8221;, &#8220;Bob&#8221;, [&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-66735","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66735","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=66735"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66735\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}