{"id":65409,"date":"2025-05-03T16:19:02","date_gmt":"2025-05-03T08:19:02","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65409\/"},"modified":"2025-05-03T16:19:02","modified_gmt":"2025-05-03T08:19:02","slug":"java-%e6%80%8e%e4%b9%88%e9%81%8d%e5%8e%86%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65409\/","title":{"rendered":"java \u600e\u4e48\u904d\u5386\u6570\u7ec4"},"content":{"rendered":"

\n java \u904d\u5386\u6570\u7ec4\u7684\u65b9\u6cd5\u6709\uff1a\u4f7f\u7528 for \u5faa\u73af\u4f7f\u7528\u589e\u5f3a for \u5faa\u73af\u4f7f\u7528 stream api\n<\/p><\/blockquote>\n

\"java<\/p>\n

Java \u904d\u5386\u6570\u7ec4<\/strong><\/p>\n

Java \u4e2d\u904d\u5386\u6570\u7ec4\u6709\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n

\u4f7f\u7528 for \u5faa\u73af<\/strong><\/p>\n

\u8fd9\u662f\u6700\u5e38\u7528\u7684\u904d\u5386\u6570\u7ec4\u7684\u65b9\u5f0f\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

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

for (int i = 0; i < arr.length; i++) {\n  \/\/ \u5bf9\u6570\u7ec4 arr \u7684\u7b2c i \u4e2a\u5143\u7d20\u6267\u884c\u64cd\u4f5c\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f7f\u7528\u589e\u5f3a for \u5faa\u73af<\/strong><\/p>\n
\u589e\u5f3a for \u5faa\u73af\u662f\u5bf9 for \u5faa\u73af\u7684\u8bed\u6cd5\u7cd6\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
for (int element : arr) {\n  \/\/ \u5bf9\u6570\u7ec4 arr \u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20 element \u6267\u884c\u64cd\u4f5c\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f7f\u7528 Stream API<\/strong><\/p>\n
Java 8 \u5f15\u5165\u4e86 Stream API\uff0c\u53ef\u4ee5\u5bf9\u6570\u7ec4\u8fdb\u884c\u66f4\u9ad8\u7ea7\u522b\u7684\u64cd\u4f5c\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
Arrays.stream(arr)\n  .forEach(element -> {\n    \/\/ \u5bf9\u6570\u7ec4 arr \u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20 element \u6267\u884c\u64cd\u4f5c\n  });<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u9009\u62e9\u54ea\u79cd\u904d\u5386\u65b9\u6cd5<\/strong><\/p>\n
\u8fd9\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u573a\u666f\u548c\u6027\u80fd\u8981\u6c42\uff1a<\/p>\n
    \n
  •  for \u5faa\u73af<\/strong>\u662f\u6700\u76f4\u63a5\u3001\u6700\u7075\u6d3b\u7684\u65b9\u6cd5\uff0c\u9002\u5408\u9700\u8981\u5bf9\u6570\u7ec4\u8fdb\u884c\u66f4\u7cbe\u7ec6\u63a7\u5236\u7684\u60c5\u51b5\u3002<\/li>\n
  •  \u589e\u5f3a for \u5faa\u73af<\/strong>\u8bed\u6cd5\u66f4\u7b80\u6d01\uff0c\u9002\u5408\u4e8e\u9700\u8981\u5bf9\u6570\u7ec4\u8fdb\u884c\u7b80\u5355\u7684\u904d\u5386\u64cd\u4f5c\u7684\u60c5\u51b5\u3002<\/li>\n
  •  Stream API<\/strong>\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7ea7\u522b\u7684\u64cd\u4f5c\uff0c\u9002\u5408\u4e8e\u9700\u8981\u5bf9\u6570\u7ec4\u8fdb\u884c\u66f4\u591a\u64cd\u4f5c\uff08\u5982\u8fc7\u6ee4\u3001\u6620\u5c04\u7b49\uff09\u7684\u60c5\u51b5\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662fjava \u600e\u4e48\u904d\u5386\u6570\u7ec4\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\u7684\u65b9\u6cd5\u6709\uff1a\u4f7f\u7528 for \u5faa\u73af\u4f7f\u7528\u589e\u5f3a for \u5faa\u73af\u4f7f\u7528 stream api Java \u904d\u5386\u6570\u7ec4 Java \u4e2d\u904d\u5386\u6570\u7ec4\u6709\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a \u4f7f\u7528 for \u5faa\u73af \u8fd9\u662f\u6700\u5e38\u7528\u7684\u904d\u5386\u6570\u7ec4\u7684\u65b9\u5f0f\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b for (int i = 0; i < arr.length; i++) { \/\/ \u5bf9\u6570\u7ec4 arr \u7684\u7b2c i \u4e2a\u5143\u7d20\u6267\u884c\u64cd\u4f5c } \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u589e\u5f3a for \u5faa\u73af \u589e\u5f3a for \u5faa\u73af\u662f\u5bf9 for \u5faa\u73af\u7684\u8bed\u6cd5\u7cd6\uff0c\u8bed\u6cd5\u5982\u4e0b\uff1a for (int element : arr) { \/\/ \u5bf9\u6570\u7ec4 arr \u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20 element \u6267\u884c\u64cd\u4f5c […]<\/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-65409","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65409","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=65409"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65409\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}