{"id":66334,"date":"2025-05-03T17:15:10","date_gmt":"2025-05-03T09:15:10","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66334\/"},"modified":"2025-05-03T17:15:10","modified_gmt":"2025-05-03T09:15:10","slug":"java%e4%b8%ad%e6%95%b0%e7%bb%84%e5%be%aa%e7%8e%af%e8%b5%8b%e5%80%bc%e6%80%8e%e4%b9%88%e5%81%9a-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66334\/","title":{"rendered":"java\u4e2d\u6570\u7ec4\u5faa\u73af\u8d4b\u503c\u600e\u4e48\u505a"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u6570\u7ec4\u5faa\u73af\u8d4b\u503c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\uff1a\u6807\u51c6 for \u5faa\u73af\uff1a\u4f7f\u7528\u7d22\u5f15\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u9010\u4e2a\u8d4b\u503c\u3002\u589e\u5f3a for \u5faa\u73af\uff1a\u904d\u5386\u6570\u7ec4\u5143\u7d20\uff0c\u76f4\u63a5\u8d4b\u503c\u3002arrays.fill \u65b9\u6cd5\uff1a\u7528\u6307\u5b9a\u503c\u586b\u5145\u6574\u4e2a\u6570\u7ec4\u3002lambda \u8868\u8fbe\u5f0f\uff1a\u4f7f\u7528 foreach() \u65b9\u6cd5\uff0c\u7ed3\u5408 intstream \u8fdb\u884c\u8d4b\u503c\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/15\/2024111507303745675.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u6570\u7ec4\u5faa\u73af\u8d4b\u503c\u600e\u4e48\u505a\u63d2\u56fe\" alt=\"java\u4e2d\u6570\u7ec4\u5faa\u73af\u8d4b\u503c\u600e\u4e48\u505a\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e2d\u6570\u7ec4\u5faa\u73af\u8d4b\u503c<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u4e3a\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5faa\u73af\u8d4b\u503c\u6709\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u6807\u51c6 for \u5faa\u73af<\/strong><\/p>\n<pre>int[] numbers = new int[5];\n\nfor (int i = 0; i &lt; numbers.length; i++) {\n  numbers[i] = i + 1;\n}\n\n\/\/ \u8f93\u51fa\u6570\u7ec4\u5143\u7d20\nfor (int number : numbers) {\n  System.out.println(number);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>1\n2\n3\n4\n5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u589e\u5f3a for \u5faa\u73af<\/strong><\/p>\n<pre>int[] numbers = new int[5];\n\nint index = 0;\nfor (int number : numbers) {\n  number = index + 1;\n  index++;\n}\n\n\/\/ \u8f93\u51fa\u6570\u7ec4\u5143\u7d20\nfor (int number : numbers) {\n  System.out.println(number);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>1\n2\n3\n4\n5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. Arrays.fill \u65b9\u6cd5<\/strong><\/p>\n<pre>int[] numbers = new int[5];\n\nArrays.fill(numbers, 5);\n\n\/\/ \u8f93\u51fa\u6570\u7ec4\u5143\u7d20\nfor (int number : numbers) {\n  System.out.println(number);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>5\n5\n5\n5\n5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. Lambda \u8868\u8fbe\u5f0f<\/strong><\/p>\n<pre>int[] numbers = new int[5];\n\nIntStream.range(0, numbers.length).forEach(i -&gt; numbers[i] = i + 1);\n\n\/\/ \u8f93\u51fa\u6570\u7ec4\u5143\u7d20\nfor (int number : numbers) {\n  System.out.println(number);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>1\n2\n3\n4\n5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u6570\u7ec4\u5faa\u73af\u8d4b\u503c\u600e\u4e48\u505a\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 \u4e2d\u6570\u7ec4\u5faa\u73af\u8d4b\u503c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\uff1a\u6807\u51c6 for \u5faa\u73af\uff1a\u4f7f\u7528\u7d22\u5f15\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u9010\u4e2a\u8d4b\u503c\u3002\u589e\u5f3a for \u5faa\u73af\uff1a\u904d\u5386\u6570\u7ec4\u5143\u7d20\uff0c\u76f4\u63a5\u8d4b\u503c\u3002arrays.fill \u65b9\u6cd5\uff1a\u7528\u6307\u5b9a\u503c\u586b\u5145\u6574\u4e2a\u6570\u7ec4\u3002lambda \u8868\u8fbe\u5f0f\uff1a\u4f7f\u7528 foreach() \u65b9\u6cd5\uff0c\u7ed3\u5408 intstream \u8fdb\u884c\u8d4b\u503c\u3002 Java \u4e2d\u6570\u7ec4\u5faa\u73af\u8d4b\u503c \u5728 Java \u4e2d\uff0c\u4e3a\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5faa\u73af\u8d4b\u503c\u6709\u51e0\u79cd\u65b9\u6cd5\uff1a 1. \u6807\u51c6 for \u5faa\u73af int[] numbers = new int[5]; for (int i = 0; i &lt; numbers.length; i++) { numbers[i] = i + 1; } \/\/ \u8f93\u51fa\u6570\u7ec4\u5143\u7d20 for (int number : numbers) { System.out.println(number); } \u767b\u5f55\u540e\u590d\u5236 \u8f93\u51fa\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-66334","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66334","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=66334"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66334\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}