{"id":36628,"date":"2024-11-26T09:23:33","date_gmt":"2024-11-26T01:23:33","guid":{"rendered":"https:\/\/fwq.ai\/blog\/36628\/"},"modified":"2024-11-26T09:23:33","modified_gmt":"2024-11-26T01:23:33","slug":"java%e6%80%8e%e4%b9%88%e5%88%9d%e5%a7%8b%e5%8c%96%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/36628\/","title":{"rendered":"java\u600e\u4e48\u521d\u59cb\u5316\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u521d\u59cb\u5316\u6570\u7ec4\u7684\u4e94\u79cd\u65b9\u6cd5\u5305\u62ec\uff1a\u76f4\u63a5\u521d\u59cb\u5316\u3002\u4f7f\u7528\u6570\u7ec4\u5b57\u9762\u91cf\u3002\u4f7f\u7528 for \u5faa\u73af\u3002\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u3002\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\uff08\u4f8b\u5982 guava\uff09\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111212002216976.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u521d\u59cb\u5316\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u600e\u4e48\u521d\u59cb\u5316\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u521d\u59cb\u5316\u6570\u7ec4\u7684\u65b9\u6cd5<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u65b9\u6cd5\u6765\u521d\u59cb\u5316\u6570\u7ec4\uff1a<\/p>\n<p><strong>1. \u76f4\u63a5\u521d\u59cb\u5316<\/strong><\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nString[] names = {\"Alice\", \"Bob\", \"Carol\"};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528\u6570\u7ec4\u5b57\u9762\u91cf<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = new int[]{1, 2, 3, 4, 5};\nString[] names = new String[]{\"Alice\", \"Bob\", \"Carol\"};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong>\u4f7f\u7528\u6570\u7ec4\u5b57\u9762\u91cf\u65f6\uff0c\u5143\u7d20\u7684\u7c7b\u578b\u5fc5\u987b\u663e\u5f0f\u6307\u5b9a\uff0c\u5982\u4e0a\u9762\u7684 int[] \u548c String[]\u3002<\/p>\n<p><strong>3. \u4f7f\u7528 for \u5faa\u73af<\/strong><\/p>\n<pre>int[] numbers = new int[5];\nfor (int i = 0; i &lt; numbers.length; i++) {\n    numbers[i] = i + 1;\n}\n\nString[] names = new String[3];\nfor (int i = 0; i &lt; names.length; i++) {\n    names[i] = \"Name\" + (i + 1);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u4f7f\u7528 Arrays.fill() \u65b9\u6cd5<\/strong><\/p>\n<pre>int[] numbers = new int[5];\nArrays.fill(numbers, 0);\n\nString[] names = new String[3];\nArrays.fill(names, \"Unknown\");<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong>Arrays.fill() \u65b9\u6cd5\u4f1a\u7528\u6307\u5b9a\u7684\u5143\u7d20\u586b\u5145\u6574\u4e2a\u6570\u7ec4\u3002<\/p>\n<p><strong>5. \u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93<\/strong><\/p>\n<p>\u4e00\u4e9b\u7b2c\u4e09\u65b9\u5e93\uff08\u4f8b\u5982 Guava\uff09\u63d0\u4f9b\u4e86\u989d\u5916\u7684\u521d\u59cb\u5316\u6570\u7ec4\u7684\u65b9\u6cd5\uff0c\u5982\uff1a<\/p>\n<pre>import com.google.common.collect.ImmutableList;\n\nint[] numbers = ImmutableList.of(1, 2, 3, 4, 5).toArray();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u521d\u59cb\u5316\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 java \u4e2d\uff0c\u521d\u59cb\u5316\u6570\u7ec4\u7684\u4e94\u79cd\u65b9\u6cd5\u5305\u62ec\uff1a\u76f4\u63a5\u521d\u59cb\u5316\u3002\u4f7f\u7528\u6570\u7ec4\u5b57\u9762\u91cf\u3002\u4f7f\u7528 for \u5faa\u73af\u3002\u4f7f\u7528 arrays.fill() \u65b9\u6cd5\u3002\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\uff08\u4f8b\u5982 guava\uff09\u3002 Java \u521d\u59cb\u5316\u6570\u7ec4\u7684\u65b9\u6cd5 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u65b9\u6cd5\u6765\u521d\u59cb\u5316\u6570\u7ec4\uff1a 1. \u76f4\u63a5\u521d\u59cb\u5316 int[] numbers = {1, 2, 3, 4, 5}; String[] names = {&#8220;Alice&#8221;, &#8220;Bob&#8221;, &#8220;Carol&#8221;}; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528\u6570\u7ec4\u5b57\u9762\u91cf \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = new int[]{1, 2, 3, 4, 5}; String[] names = new String[]{&#8220;Alice&#8221;, &#8220;Bob&#8221;, &#8220;Carol&#8221;}; \u767b\u5f55\u540e\u590d\u5236 \u6ce8\u610f\uff1a\u4f7f\u7528\u6570\u7ec4\u5b57\u9762\u91cf\u65f6\uff0c\u5143\u7d20\u7684\u7c7b\u578b\u5fc5\u987b\u663e\u5f0f\u6307\u5b9a\uff0c\u5982\u4e0a\u9762\u7684 int[] \u548c String[]\u3002 3. [&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-36628","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36628","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=36628"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36628\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=36628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=36628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=36628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}