{"id":36916,"date":"2024-11-26T08:57:44","date_gmt":"2024-11-26T00:57:44","guid":{"rendered":"https:\/\/fwq.ai\/blog\/36916\/"},"modified":"2024-11-26T08:57:44","modified_gmt":"2024-11-26T00:57:44","slug":"scala%e6%80%8e%e4%b9%88%e7%94%a8java%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/36916\/","title":{"rendered":"scala\u600e\u4e48\u7528java\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 scala \u4e2d\u4f7f\u7528 java \u6570\u7ec4\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa java \u6570\u7ec4\uff0c\u6307\u5b9a\u5143\u7d20\u7c7b\u578b\u548c\u5927\u5c0f\u3002\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26 ([]) \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u3002\u901a\u8fc7\u7d22\u5f15\u5206\u914d\u65b0\u503c\u4fee\u6539\u6570\u7ec4\u5143\u7d20\u3002\u7528 foreach \u5faa\u73af\u904d\u5386\u6570\u7ec4\u5143\u7d20\u3002\u5229\u7528 java.util.arrays \u7c7b\u63d0\u4f9b\u7684\u65b9\u6cd5\uff0c\u5982 copyof()\u3001fill() \u548c sort()\u3002\u9700\u8981\u6ce8\u610f\uff0cjava \u6570\u7ec4\u5728 scala \u4e2d\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u5e76\u4e14\u53ef\u4ee5\u5305\u542b\u4efb\u4f55\u5bf9\u8c61\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111221372758433.jpg\" class=\"aligncenter\" title=\"scala\u600e\u4e48\u7528java\u6570\u7ec4\u63d2\u56fe\" alt=\"scala\u600e\u4e48\u7528java\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 Scala \u6570\u7ec4<\/strong><\/p>\n<p><strong>\u5f15\u8a00<\/strong><br \/>\u5728 Scala \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 java.util.Arrays \u5bf9\u8c61\u8f7b\u677e\u64cd\u4f5c Java \u6570\u7ec4\u3002<\/p>\n<p><strong>\u521b\u5efa Java \u6570\u7ec4<\/strong><br \/>\u8981\u521b\u5efa\u4e00\u4e2a Java \u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 new \u5173\u952e\u5b57\uff0c\u540e\u8ddf\u6570\u7ec4\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u548c\u5c3a\u5bf8\uff1a<\/p>\n<pre>\/\/ \u521b\u5efa\u4e00\u4e2a\u5305\u542b 5 \u4e2a\u6574\u6570\u5143\u7d20\u7684 Java \u6570\u7ec4\nval array = new Array[Int](5)<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/strong><br \/>\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26 ([]) \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>\/\/ \u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\nprintln(array(0))<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4fee\u6539\u6570\u7ec4\u5143\u7d20<\/strong><br \/>\u901a\u8fc7\u7d22\u5f15\u5206\u914d\u65b0\u503c\u6765\u4fee\u6539\u6570\u7ec4\u5143\u7d20\uff1a<\/p>\n<pre>\/\/ \u5c06\u6570\u7ec4\u4e2d\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u8bbe\u7f6e\u4e3a 10\narray(0) = 10<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u904d\u5386\u6570\u7ec4<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528 foreach \u5faa\u73af\u904d\u5386\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\uff1a<\/p>\n<pre>\/\/ \u4f7f\u7528 foreach \u5faa\u73af\u6253\u5370\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\narray.foreach(println)<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u5e38\u7528\u65b9\u6cd5<\/strong><br \/>java.util.Arrays \u7c7b\u63d0\u4f9b\u4e86\u4e00\u4e9b\u6709\u7528\u7684\u65b9\u6cd5\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>copyOf()\uff1a\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5b83\u662f\u7ed9\u5b9a\u6570\u7ec4\u7684\u62f7\u8d1d\u3002<\/li>\n<li>fill()\uff1a\u7528\u7ed9\u5b9a\u7684\u503c\u586b\u5145\u6570\u7ec4\u3002<\/li>\n<li>sort()\uff1a\u6309\u7167\u81ea\u7136\u987a\u5e8f\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n<\/ul>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>Java \u6570\u7ec4\u5728 Scala \u4e2d\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u8fd9\u610f\u5473\u7740\u521b\u5efa\u6570\u7ec4\u540e\u4e0d\u80fd\u66f4\u6539\u5176\u5927\u5c0f\u3002<\/li>\n<li>Scala \u6570\u7ec4\u53ef\u4ee5\u5305\u542b\u4efb\u4f55\u5bf9\u8c61\uff0c\u800c\u4e0d\u4e00\u5b9a\u662f\u57fa\u672c\u7c7b\u578b\u3002<\/li>\n<li>Java \u6570\u7ec4\u4e0e Scala \u6570\u7ec4\u4e0d\u540c\uff0c\u56e0\u4e3a Scala \u6570\u7ec4\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u800c Java \u6570\u7ec4\u662f\u53ef\u4ee5\u53d8\u7684\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fscala\u600e\u4e48\u7528java\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 scala \u4e2d\u4f7f\u7528 java \u6570\u7ec4\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa java \u6570\u7ec4\uff0c\u6307\u5b9a\u5143\u7d20\u7c7b\u578b\u548c\u5927\u5c0f\u3002\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26 ([]) \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u3002\u901a\u8fc7\u7d22\u5f15\u5206\u914d\u65b0\u503c\u4fee\u6539\u6570\u7ec4\u5143\u7d20\u3002\u7528 foreach \u5faa\u73af\u904d\u5386\u6570\u7ec4\u5143\u7d20\u3002\u5229\u7528 java.util.arrays \u7c7b\u63d0\u4f9b\u7684\u65b9\u6cd5\uff0c\u5982 copyof()\u3001fill() \u548c sort()\u3002\u9700\u8981\u6ce8\u610f\uff0cjava \u6570\u7ec4\u5728 scala \u4e2d\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u5e76\u4e14\u53ef\u4ee5\u5305\u542b\u4efb\u4f55\u5bf9\u8c61\u3002 \u5982\u4f55\u4f7f\u7528 Scala \u6570\u7ec4 \u5f15\u8a00\u5728 Scala \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 java.util.Arrays \u5bf9\u8c61\u8f7b\u677e\u64cd\u4f5c Java \u6570\u7ec4\u3002 \u521b\u5efa Java \u6570\u7ec4\u8981\u521b\u5efa\u4e00\u4e2a Java \u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 new \u5173\u952e\u5b57\uff0c\u540e\u8ddf\u6570\u7ec4\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\u548c\u5c3a\u5bf8\uff1a \/\/ \u521b\u5efa\u4e00\u4e2a\u5305\u542b 5 \u4e2a\u6574\u6570\u5143\u7d20\u7684 Java \u6570\u7ec4 val array = new Array[Int](5) \u767b\u5f55\u540e\u590d\u5236 \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u4f7f\u7528\u4e0b\u6807\u8fd0\u7b97\u7b26 ([]) \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \/\/ [&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-36916","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36916","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=36916"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36916\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=36916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=36916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=36916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}