{"id":39063,"date":"2024-11-26T15:27:43","date_gmt":"2024-11-26T07:27:43","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39063\/"},"modified":"2024-11-26T15:27:43","modified_gmt":"2024-11-26T07:27:43","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e7%bb%99%e6%95%b0%e7%bb%84%e9%87%8c%e6%94%be%e5%86%85%e5%ae%b9","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39063\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u7ed9\u6570\u7ec4\u91cc\u653e\u5185\u5bb9"},"content":{"rendered":"<blockquote><p>\n  \u5411 java \u6570\u7ec4\u6dfb\u52a0\u5143\u7d20\u7684\u65b9\u6cd5\u53d6\u51b3\u4e8e\u6570\u7ec4\u7c7b\u578b\u548c java \u7248\u672c\uff1a\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff1a \u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26\u3001arrays.fill() \u6216\u5faa\u73af\u3002\u5bf9\u8c61\u6570\u7ec4\uff1a \u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26\u3001arraylist \u6216\u5faa\u73af\u3002java 9 \u4ee5\u4e0a\u7248\u672c\uff1a \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u8bed\u6cd5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111603345328352.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u600e\u4e48\u7ed9\u6570\u7ec4\u91cc\u653e\u5185\u5bb9\u63d2\u56fe\" alt=\"java\u4e2d\u600e\u4e48\u7ed9\u6570\u7ec4\u91cc\u653e\u5185\u5bb9\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u5143\u7d20<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u5143\u7d20\u6709\u51e0\u79cd\u65b9\u6cd5\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u6570\u7ec4\u7684\u7c7b\u578b\u548c\u6240\u4f7f\u7528\u7684 Java \u7248\u672c\u3002<\/p>\n<p><strong>\u57fa\u672c\u7c7b\u578b\u6570\u7ec4<\/strong><\/p>\n<p>\u5bf9\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff08\u4f8b\u5982 int[]\u3001double[] \u548c char[]\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u6dfb\u52a0\u5143\u7d20\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li> <strong>\u4f7f\u7528\u6570\u7ec4\u8d4b\u503c\u8fd0\u7b97\u7b26\uff08=\uff09\uff1a<\/strong>\u5c06\u5143\u7d20\u76f4\u63a5\u8d4b\u503c\u7ed9\u6570\u7ec4\u7d22\u5f15\uff0c\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>int[] numbers = new int[5];\nnumbers[0] = 10;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li> <strong>\u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\uff1a<\/strong>\u7528\u4e00\u4e2a\u503c\u586b\u5145\u6574\u4e2a\u6570\u7ec4\uff0c\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>Arrays.fill(numbers, 10);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li> <strong>\u4f7f\u7528\u5faa\u73af\uff1a<\/strong>\u4f7f\u7528\u5faa\u73af\u9010\u4e2a\u7d22\u5f15\u6dfb\u52a0\u5143\u7d20\uff0c\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>for (int i = 0; i &lt; numbers.length; i++) {\n    numbers[i] = i + 10;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u5bf9\u8c61\u6570\u7ec4<\/strong><\/p>\n<p>\u5bf9\u4e8e\u5bf9\u8c61\u6570\u7ec4\uff08\u4f8b\u5982 String[] \u548c Object[]\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u6dfb\u52a0\u5143\u7d20\uff1a<\/p>\n<ul>\n<li> <strong>\u4f7f\u7528\u6570\u7ec4\u8d4b\u503c\u8fd0\u7b97\u7b26\uff08=\uff09\uff1a<\/strong>\u5c06\u5f15\u7528\u8d4b\u503c\u7ed9\u6570\u7ec4\u7d22\u5f15\uff0c\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>String[] names = new String[5];\nnames[0] = \"John\";<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li> <strong>\u4f7f\u7528 ArrayList\uff1a<\/strong>\u4f7f\u7528 ArrayList \u5b58\u50a8\u5bf9\u8c61\uff0c\u7136\u540e\u5c06\u5176\u8f6c\u6362\u4e3a\u6570\u7ec4\uff0c\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>ArrayList&lt;String&gt; names = new ArrayList&lt;&gt;();\nnames.add(\"John\");\nString[] namesArray = names.toArray(new String[names.size()]);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li> <strong>\u4f7f\u7528\u5faa\u73af\uff1a<\/strong>\u4f7f\u7528\u5faa\u73af\u9010\u4e2a\u7d22\u5f15\u6dfb\u52a0\u5143\u7d20\uff0c\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre>for (int i = 0; i &lt; names.length; i++) {\n    names[i] = \"Person \" + (i + 1);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>Java 9 \u53ca\u66f4\u9ad8\u7248\u672c<\/strong><\/p>\n<p>\u5728 Java 9 \u53ca\u66f4\u9ad8\u7248\u672c\u4e2d\uff0c\u5f15\u5165\u4e86\u6570\u7ec4\u521d\u59cb\u5316\u5668\u8bed\u6cd5\uff0c\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u521d\u59cb\u5316\u6570\u7ec4\uff1a<\/p>\n<pre>int[] numbers = { 10, 20, 30, 40, 50 };<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u6dfb\u52a0\u5143\u7d20\u65f6\uff0c\u8bf7\u59cb\u7ec8\u786e\u4fdd\u6570\u7ec4\u7d22\u5f15\u5728\u6709\u6548\u8303\u56f4\u5185\u3002<\/li>\n<li>\u5411\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\u6dfb\u52a0\u5143\u7d20\u65f6\uff0c\u53ea\u80fd\u4f7f\u7528\u76f8\u5e94\u7684\u7c7b\u578b\u503c\u3002<\/li>\n<li>\u5411\u5bf9\u8c61\u6570\u7ec4\u6dfb\u52a0\u5143\u7d20\u65f6\uff0c\u53ef\u4ee5\u5b58\u50a8\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u6570\u7ec4\u7684\u58f0\u660e\u7c7b\u578b\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u7ed9\u6570\u7ec4\u91cc\u653e\u5185\u5bb9\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>\u5411 java \u6570\u7ec4\u6dfb\u52a0\u5143\u7d20\u7684\u65b9\u6cd5\u53d6\u51b3\u4e8e\u6570\u7ec4\u7c7b\u578b\u548c java \u7248\u672c\uff1a\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff1a \u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26\u3001arrays.fill() \u6216\u5faa\u73af\u3002\u5bf9\u8c61\u6570\u7ec4\uff1a \u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26\u3001arraylist \u6216\u5faa\u73af\u3002java 9 \u4ee5\u4e0a\u7248\u672c\uff1a \u4f7f\u7528\u6570\u7ec4\u521d\u59cb\u5316\u5668\u8bed\u6cd5\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u5143\u7d20 \u5728 Java \u4e2d\uff0c\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u5143\u7d20\u6709\u51e0\u79cd\u65b9\u6cd5\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u6570\u7ec4\u7684\u7c7b\u578b\u548c\u6240\u4f7f\u7528\u7684 Java \u7248\u672c\u3002 \u57fa\u672c\u7c7b\u578b\u6570\u7ec4 \u5bf9\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff08\u4f8b\u5982 int[]\u3001double[] \u548c char[]\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u6dfb\u52a0\u5143\u7d20\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u4f7f\u7528\u6570\u7ec4\u8d4b\u503c\u8fd0\u7b97\u7b26\uff08=\uff09\uff1a\u5c06\u5143\u7d20\u76f4\u63a5\u8d4b\u503c\u7ed9\u6570\u7ec4\u7d22\u5f15\uff0c\u4f8b\u5982\uff1a int[] numbers = new int[5]; numbers[0] = 10; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 Arrays.fill() \u65b9\u6cd5\uff1a\u7528\u4e00\u4e2a\u503c\u586b\u5145\u6574\u4e2a\u6570\u7ec4\uff0c\u4f8b\u5982\uff1a Arrays.fill(numbers, 10); \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u5faa\u73af\uff1a\u4f7f\u7528\u5faa\u73af\u9010\u4e2a\u7d22\u5f15\u6dfb\u52a0\u5143\u7d20\uff0c\u4f8b\u5982\uff1a for (int i = 0; i &lt; numbers.length; i++) { numbers[i] = [&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-39063","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39063","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=39063"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39063\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39063"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}