{"id":36640,"date":"2024-11-26T10:35:54","date_gmt":"2024-11-26T02:35:54","guid":{"rendered":"https:\/\/fwq.ai\/blog\/36640\/"},"modified":"2024-11-26T10:35:54","modified_gmt":"2024-11-26T02:35:54","slug":"java%e6%80%8e%e4%b9%88%e5%90%88%e5%b9%b6%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/36640\/","title":{"rendered":"java\u600e\u4e48\u5408\u5e76\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u6709\u56db\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5408\u5e76 java \u6570\u7ec4\uff1a\u4f7f\u7528 arrays.copyof() \u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5bb9\u7eb3\u4e24\u4e2a\u8f93\u5165\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u3002\u5c06\u8f93\u5165\u6570\u7ec4\u653e\u5165 list \u4e2d\uff0c\u7136\u540e\u4f7f\u7528 collections.addall() \u65b9\u6cd5\u5408\u5e76\u5b83\u4eec\u3002\u4f7f\u7528 apache commons lang \u5e93\u4e2d\u7684 arrayutils.addall() \u65b9\u6cd5\u3002\u4f7f\u7528 guava \u5e93\u4e2d\u7684 lists.newarraylist() \u65b9\u6cd5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111212181864973.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u5408\u5e76\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u600e\u4e48\u5408\u5e76\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u7528 Java \u5408\u5e76\u6570\u7ec4<\/strong><\/p>\n<p><strong>\u4e00\u3001\u76f4\u63a5\u8fde\u63a5\u6570\u7ec4<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\u6765\u5bb9\u7eb3\u4e24\u4e2a\u8f93\u5165\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u3002<\/li>\n<\/ul>\n<pre>int[] array1 = {1, 2, 3};\nint[] array2 = {4, 5, 6};\n\n\/\/ \u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\u4ee5\u5bb9\u7eb3\u4e24\u4e2a\u8f93\u5165\u6570\u7ec4\nint[] mergedArray = Arrays.copyOf(array1, array1.length + array2.length);\n\n\/\/ \u5c06 array2 \u7684\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\nSystem.arraycopy(array2, 0, mergedArray, array1.length, array2.length);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4e8c\u3001\u4f7f\u7528 List<\/strong><\/p>\n<ul>\n<li>\u5c06\u8f93\u5165\u6570\u7ec4\u653e\u5165 List \u4e2d\uff0c\u7136\u540e\u4f7f\u7528 Collections.addAll() \u65b9\u6cd5\u5408\u5e76\u5b83\u4eec\u3002<\/li>\n<\/ul>\n<pre>List&lt;Integer&gt; list1 = Arrays.asList(1, 2, 3);\nList&lt;Integer&gt; list2 = Arrays.asList(4, 5, 6);\n\n\/\/ \u4f7f\u7528 Collections.addAll() \u5408\u5e76\u5217\u8868\nCollections.addAll(list1, list2);\n\n\/\/ \u5c06\u5408\u5e76\u540e\u7684\u5217\u8868\u8f6c\u6362\u4e3a\u6570\u7ec4\nint[] mergedArray = list1.stream().mapToInt(Integer::intValue).toArray();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4e09\u3001\u4f7f\u7528 ArrayUtils \u7c7b (Apache Commons Lang)<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>\u4f7f\u7528 Apache Commons Lang \u5e93\u4e2d\u7684 ArrayUtils.addAll() \u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<pre>int[] array1 = {1, 2, 3};\nint[] array2 = {4, 5, 6};\n\n\/\/ \u4f7f\u7528 ArrayUtils.addAll() \u5408\u5e76\u6570\u7ec4\nint[] mergedArray = ArrayUtils.addAll(array1, array2);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u56db\u3001\u4f7f\u7528 Guava \u5e93<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528 Guava \u5e93\u4e2d\u7684 Lists.newArrayList() \u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<pre>int[] array1 = {1, 2, 3};\nint[] array2 = {4, 5, 6};\n\n\/\/ \u4f7f\u7528 Lists.newArrayList() \u5408\u5e76\u6570\u7ec4\nint[] mergedArray = Lists.newArrayList(array1).addAll(array2).toArray();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5408\u5e76\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>\u6709\u56db\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5408\u5e76 java \u6570\u7ec4\uff1a\u4f7f\u7528 arrays.copyof() \u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5bb9\u7eb3\u4e24\u4e2a\u8f93\u5165\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u3002\u5c06\u8f93\u5165\u6570\u7ec4\u653e\u5165 list \u4e2d\uff0c\u7136\u540e\u4f7f\u7528 collections.addall() \u65b9\u6cd5\u5408\u5e76\u5b83\u4eec\u3002\u4f7f\u7528 apache commons lang \u5e93\u4e2d\u7684 arrayutils.addall() \u65b9\u6cd5\u3002\u4f7f\u7528 guava \u5e93\u4e2d\u7684 lists.newarraylist() \u65b9\u6cd5\u3002 \u5982\u4f55\u7528 Java \u5408\u5e76\u6570\u7ec4 \u4e00\u3001\u76f4\u63a5\u8fde\u63a5\u6570\u7ec4 \u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\u6765\u5bb9\u7eb3\u4e24\u4e2a\u8f93\u5165\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u3002 int[] array1 = {1, 2, 3}; int[] array2 = {4, 5, 6}; \/\/ \u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\u4ee5\u5bb9\u7eb3\u4e24\u4e2a\u8f93\u5165\u6570\u7ec4 int[] mergedArray = Arrays.copyOf(array1, array1.length + array2.length); \/\/ \u5c06 array2 \u7684\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d System.arraycopy(array2, 0, mergedArray, array1.length, [&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-36640","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36640","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=36640"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36640\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=36640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=36640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=36640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}