{"id":65845,"date":"2025-05-03T16:26:52","date_gmt":"2025-05-03T08:26:52","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65845\/"},"modified":"2025-05-03T16:26:52","modified_gmt":"2025-05-03T08:26:52","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e5%af%b9%e6%95%b0%e7%bb%84%e8%bf%9b%e8%a1%8c%e9%81%8d%e5%8e%86-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65845\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u5bf9\u6570\u7ec4\u8fdb\u884c\u904d\u5386"},"content":{"rendered":"

\n java \u904d\u5386\u6570\u7ec4\u6709\u591a\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 for \u5faa\u73af\u5bf9\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u8fdb\u884c\u7d22\u5f15\u548c\u4fee\u6539\u3002\u4f7f\u7528 foreach \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002\u4f7f\u7528 arrays.stream() \u5728 java 8 \u4e2d\u4f7f\u7528\u6d41\u5f0f api \u904d\u5386\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n

\"java\u4e2d\u600e\u4e48\u5bf9\u6570\u7ec4\u8fdb\u884c\u904d\u5386\u63d2\u56fe\"<\/p>\n

Java\u4e2d\u904d\u5386\u6570\u7ec4\u7684\u65b9\u6cd5<\/strong><\/p>\n

Java\u4e2d\u904d\u5386\u6570\u7ec4\u6709\u51e0\u79cd\u65b9\u6cd5\uff0c\u6bcf\u79cd\u65b9\u6cd5\u90fd\u9002\u5408\u4e0d\u540c\u7684\u60c5\u51b5\u3002<\/p>\n

\u4f7f\u7528for\u5faa\u73af<\/strong><\/p>\n

\u6700\u57fa\u672c\u7684\u65b9\u6cd5\u662f\u4f7f\u7528for\u5faa\u73af\uff1a<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

int[] arr = {1, 2, 3, 4, 5};\n\nfor (int i = 0; i < arr.length; i++) {\n    System.out.println(arr[i]);\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6b64\u5faa\u73af\u4ece\u5934\u5230\u5c3e\u904d\u5386\u6570\u7ec4\uff0c\u9010\u4e2a\u6253\u5370\u6bcf\u4e2a\u5143\u7d20\u3002<\/p>\n
\u4f7f\u7528foreach\u5faa\u73af<\/strong><\/p>\n
Java 5\u4e2d\u5f15\u5165\u7684foreach\u5faa\u73af\u66f4\u7b80\u6d01\uff1a<\/p>\n
for (int element : arr) {\n    System.out.println(element);\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6b64\u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u5c06\u5176\u5206\u914d\u7ed9\u53d8\u91cfelement\u3002<\/p>\n
\u4f7f\u7528Arrays.stream()<\/strong><\/p>\n
Java 8\u4e2d\u5f15\u5165\u7684Arrays.stream()\u65b9\u6cd5\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7ea7\u7684\u904d\u5386\u65b9\u5f0f\uff1a<\/p>\n
Arrays.stream(arr).forEach(System.out::println);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6b64\u7528\u6cd5\u4f7f\u7528\u6d41\u5f0fAPI\u904d\u5386\u6570\u7ec4\u5e76\u4f7f\u7528forEach()\u65b9\u6cd5\u6253\u5370\u6bcf\u4e2a\u5143\u7d20\u3002<\/p>\n
\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5<\/strong><\/p>\n
\u9009\u62e9\u54ea\u79cd\u904d\u5386\u65b9\u6cd5\u53d6\u51b3\u4e8e\u4ee5\u4e0b\u56e0\u7d20\uff1a<\/p>\n
    \n
  •  \u6570\u7ec4\u5927\u5c0f\uff1a<\/strong>\u5bf9\u4e8e\u5c0f\u6570\u7ec4\uff0cfor\u5faa\u73af\u53ef\u80fd\u66f4\u5feb\u3002\u5bf9\u4e8e\u5927\u6570\u7ec4\uff0cforeach\u5faa\u73af\u6216Arrays.stream()\u53ef\u80fd\u66f4\u6709\u6548\u3002<\/li>\n
  •  \u9700\u8981\u4fee\u6539\u6570\u7ec4\uff1a<\/strong>\u5982\u679c\u9700\u8981\u4fee\u6539\u6570\u7ec4\uff0c\u8bf7\u4f7f\u7528for\u5faa\u73af\uff0c\u56e0\u4e3a\u5b83\u5141\u8bb8\u5bf9\u6570\u7ec4\u5143\u7d20\u8fdb\u884c\u7d22\u5f15\u548c\u4fee\u6539\u3002<\/li>\n
  •  \u9700\u8981\u5143\u7d20\u7d22\u5f15\uff1a<\/strong>\u5982\u679c\u9700\u8981\u5143\u7d20\u7d22\u5f15\uff0c\u8bf7\u4f7f\u7528for\u5faa\u73af\u3002foreach\u5faa\u73af\u548cArrays.stream()\u4e0d\u63d0\u4f9b\u7d22\u5f15\u4fe1\u606f\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u5bf9\u6570\u7ec4\u8fdb\u884c\u904d\u5386\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    java \u904d\u5386\u6570\u7ec4\u6709\u591a\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 for \u5faa\u73af\u5bf9\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u8fdb\u884c\u7d22\u5f15\u548c\u4fee\u6539\u3002\u4f7f\u7528 foreach \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002\u4f7f\u7528 arrays.stream() \u5728 java 8 \u4e2d\u4f7f\u7528\u6d41\u5f0f api \u904d\u5386\u6570\u7ec4\u3002 Java\u4e2d\u904d\u5386\u6570\u7ec4\u7684\u65b9\u6cd5 Java\u4e2d\u904d\u5386\u6570\u7ec4\u6709\u51e0\u79cd\u65b9\u6cd5\uff0c\u6bcf\u79cd\u65b9\u6cd5\u90fd\u9002\u5408\u4e0d\u540c\u7684\u60c5\u51b5\u3002 \u4f7f\u7528for\u5faa\u73af \u6700\u57fa\u672c\u7684\u65b9\u6cd5\u662f\u4f7f\u7528for\u5faa\u73af\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr = {1, 2, 3, 4, 5}; for (int i = 0; i < arr.length; i++) { System.out.println(arr[i]); } \u767b\u5f55\u540e\u590d\u5236 \u6b64\u5faa\u73af\u4ece\u5934\u5230\u5c3e\u904d\u5386\u6570\u7ec4\uff0c\u9010\u4e2a\u6253\u5370\u6bcf\u4e2a\u5143\u7d20\u3002 \u4f7f\u7528foreach\u5faa\u73af Java 5\u4e2d\u5f15\u5165\u7684foreach\u5faa\u73af\u66f4\u7b80\u6d01\uff1a for (int element : arr) { System.out.println(element); } \u767b\u5f55\u540e\u590d\u5236 \u6b64\u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u5c06\u5176\u5206\u914d\u7ed9\u53d8\u91cfelement\u3002 \u4f7f\u7528Arrays.stream() Java […]<\/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-65845","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65845","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=65845"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65845\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65845"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65845"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}