{"id":65344,"date":"2025-05-03T14:37:38","date_gmt":"2025-05-03T06:37:38","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65344\/"},"modified":"2025-05-03T14:37:38","modified_gmt":"2025-05-03T06:37:38","slug":"java%e4%b8%ad%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e9%81%8d%e5%8e%86-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65344\/","title":{"rendered":"java\u4e2d\u6570\u7ec4\u600e\u4e48\u904d\u5386"},"content":{"rendered":"

\n java\u4e2d\u904d\u5386\u6570\u7ec4\u7684\u65b9\u6cd5\u67094\u79cd\uff1a\u4f7f\u7528for\u5faa\u73af\u6309\u987a\u5e8f\u8bbf\u95ee\u6bcf\u4e2a\u5143\u7d20\u3002\u4f7f\u7528\u589e\u5f3afor\u5faa\u73af\u7b80\u5316\u904d\u5386\uff0c\u65e0\u9700\u624b\u52a8\u8ddf\u8e2a\u7d22\u5f15\u3002\u4f7f\u7528foreach\u65b9\u6cd5\u548clambda\u8868\u8fbe\u5f0f\u904d\u5386\u6570\u7ec4\u3002\u4f7f\u7528\u8fed\u4ee3\u5668\u904d\u5386\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528hasnext()\u548cnext()\u65b9\u6cd5\u83b7\u53d6\u5143\u7d20\u3002\n<\/p><\/blockquote>\n

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

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

\u5728Java\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u904d\u5386\u6570\u7ec4\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u6700\u5e38\u89c1\u7684\u51e0\u79cd\u65b9\u6cd5\u3002<\/p>\n

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

\u6700\u57fa\u672c\u7684\u65b9\u6cd5\u662f\u4f7f\u7528for\u5faa\u73af\u3002\u5b83\u5141\u8bb8\u60a8\u6309\u987a\u5e8f\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528for\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff1a<\/p>\n

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

int[] numbers = {1, 2, 3, 4, 5};\n\nfor (int i = 0; i < numbers.length; i++) {\n    System.out.println(numbers[i]);\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f7f\u7528\u589e\u5f3afor\u5faa\u73af<\/strong><\/p>\n
\u589e\u5f3afor\u5faa\u73af\u662f\u904d\u5386\u6570\u7ec4\u7684\u66f4\u7b80\u6d01\u7684\u65b9\u6cd5\u3002\u5b83\u65e0\u9700\u663e\u5f0f\u8ddf\u8e2a\u6570\u7ec4\u7d22\u5f15\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u589e\u5f3afor\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff1a<\/p>\n
int[] numbers = {1, 2, 3, 4, 5};\n\nfor (int number : numbers) {\n    System.out.println(number);\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f7f\u7528forEach\u65b9\u6cd5<\/strong><\/p>\n
Java 8\u5f15\u5165\u4e86forEach\u65b9\u6cd5\uff0c\u5b83\u5141\u8bb8\u4f7f\u7528lambda\u8868\u8fbe\u5f0f\u904d\u5386\u6570\u7ec4\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528forEach\u65b9\u6cd5\u904d\u5386\u6570\u7ec4\uff1a<\/p>\n
int[] numbers = {1, 2, 3, 4, 5};\n\nArrays.stream(numbers).forEach(number -> System.out.println(number));<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f7f\u7528\u8fed\u4ee3\u5668<\/strong><\/p>\n
Java\u63d0\u4f9b\u4e86Iterator\u63a5\u53e3\uff0c\u5141\u8bb8\u60a8\u904d\u5386\u96c6\u5408\uff08\u5305\u62ec\u6570\u7ec4\uff09\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u8fed\u4ee3\u5668\u904d\u5386\u6570\u7ec4\uff1a<\/p>\n
int[] numbers = {1, 2, 3, 4, 5};\n\nIterator<Integer> iterator = Arrays.stream(numbers).iterator();\nwhile (iterator.hasNext()) {\n    System.out.println(iterator.next());\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u6570\u7ec4\u600e\u4e48\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\u4e2d\u904d\u5386\u6570\u7ec4\u7684\u65b9\u6cd5\u67094\u79cd\uff1a\u4f7f\u7528for\u5faa\u73af\u6309\u987a\u5e8f\u8bbf\u95ee\u6bcf\u4e2a\u5143\u7d20\u3002\u4f7f\u7528\u589e\u5f3afor\u5faa\u73af\u7b80\u5316\u904d\u5386\uff0c\u65e0\u9700\u624b\u52a8\u8ddf\u8e2a\u7d22\u5f15\u3002\u4f7f\u7528foreach\u65b9\u6cd5\u548clambda\u8868\u8fbe\u5f0f\u904d\u5386\u6570\u7ec4\u3002\u4f7f\u7528\u8fed\u4ee3\u5668\u904d\u5386\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528hasnext()\u548cnext()\u65b9\u6cd5\u83b7\u53d6\u5143\u7d20\u3002 Java\u4e2d\u904d\u5386\u6570\u7ec4\u7684\u65b9\u6cd5 \u5728Java\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u904d\u5386\u6570\u7ec4\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u6700\u5e38\u89c1\u7684\u51e0\u79cd\u65b9\u6cd5\u3002 \u4f7f\u7528for\u5faa\u73af \u6700\u57fa\u672c\u7684\u65b9\u6cd5\u662f\u4f7f\u7528for\u5faa\u73af\u3002\u5b83\u5141\u8bb8\u60a8\u6309\u987a\u5e8f\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528for\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; for (int i = 0; i < numbers.length; i++) { System.out.println(numbers[i]); } \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u589e\u5f3afor\u5faa\u73af \u589e\u5f3afor\u5faa\u73af\u662f\u904d\u5386\u6570\u7ec4\u7684\u66f4\u7b80\u6d01\u7684\u65b9\u6cd5\u3002\u5b83\u65e0\u9700\u663e\u5f0f\u8ddf\u8e2a\u6570\u7ec4\u7d22\u5f15\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u589e\u5f3afor\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff1a int[] numbers = {1, 2, 3, 4, 5}; for (int number : numbers) { System.out.println(number); } \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528forEach\u65b9\u6cd5 Java 8\u5f15\u5165\u4e86forEach\u65b9\u6cd5\uff0c\u5b83\u5141\u8bb8\u4f7f\u7528lambda\u8868\u8fbe\u5f0f\u904d\u5386\u6570\u7ec4\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528forEach\u65b9\u6cd5\u904d\u5386\u6570\u7ec4\uff1a int[] numbers = {1, 2, 3, […]<\/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-65344","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65344","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=65344"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65344\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}