{"id":203271,"date":"2025-05-22T12:53:42","date_gmt":"2025-05-22T04:53:42","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203271\/"},"modified":"2025-05-22T12:53:42","modified_gmt":"2025-05-22T04:53:42","slug":"java-stream-api-limit-%e5%92%8cskip-%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203271\/","title":{"rendered":"Java Stream API limit() \u548cskip() \u65b9\u6cd5"},"content":{"rendered":"

<\/b> <\/p>\n

Java Stream API limit() \u548cskip() \u65b9\u6cd5<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

\u79ef\u7d2f\u77e5\u8bc6\uff0c\u80dc\u8fc7\u79ef\u84c4\u91d1\u94f6\uff01\u6bd5\u7adf\u5728\u6587\u7ae0\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\uff0c\u5f80\u5f80\u90fd\u662f\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u6ca1\u6709\u638c\u63e1\u597d\u800c\u5bfc\u81f4\u7684\uff0c\u56e0\u6b64\u57fa\u7840\u77e5\u8bc6\u70b9\u7684\u79ef\u7d2f\u662f\u5f88\u91cd\u8981\u7684\u3002\u4e0b\u9762\u672c\u6587\u300aJava Stream API limit() \u548cskip() \u65b9\u6cd5\u300b\uff0c\u5c31\u5e26\u5927\u5bb6\u8bb2\u89e3\u4e00\u4e0b\u77e5\u8bc6\u70b9\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/p>\n

<\/p>\n

\u5728java 8\u4e2d\uff0cstream api\u63d0\u4f9b\u4e86limit()\u548cskip()\u65b9\u6cd5\u6765\u63a7\u5236\u6d41\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002<\/p>\n

limit(n)\uff1a\u5c06\u6d41\u9650\u5236\u4e3a\u524d n \u4e2a\u5143\u7d20\u3002<\/p>\n

skip(n)\uff1a\u8df3\u8fc7\u524d n \u4e2a\u5143\u7d20\u5e76\u5904\u7406\u5176\u4f59\u5143\u7d20\u3002<\/p>\n

\u8fd9\u662f\u4e00\u4e2a\u6f14\u793a\u4e24\u8005\u7684\u793a\u4f8b\uff1a<\/p>\n

import java.util.arrays;\nimport java.util.list;\nimport java.util.stream.collectors;\n\npublic class streamlimitskipexample {\n    public static void main(string[] args) {\n        list<integer> numbers = arrays.aslist(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);\n\n        \/\/ using limit() to get the first 5 elements\n        list<integer> limitedlist = numbers.stream()\n                .limit(5)\n                .collect(collectors.tolist());\n        system.out.println(\"first 5 elements: \" + limitedlist);\n\n        \/\/ using skip() to skip the first 5 elements and get the rest\n        list<integer> skippedlist = numbers.stream()\n                .skip(5)\n                .collect(collectors.tolist());\n        system.out.println(\"after skipping first 5 elements: \" + skippedlist);\n\n        \/\/ combining skip() and limit() to get elements from 4th to 7th positions\n        list<integer> limitedandskippedlist = numbers.stream()\n                .skip(3)     \/\/ skip first 3 elements (index starts at 0)\n                .limit(4)    \/\/ then take the next 4 elements\n                .collect(collectors.tolist());\n        system.out.println(\"elements from 4th to 7th positions: \" + limitedandskippedlist);\n    }\n}\n\n<\/pre>\n
\u8bf4\u660e\uff1a<\/p>\n
\u4f7f\u7528 limit(5)\uff1a\u8fd9\u5c06\u6d41\u9650\u5236\u4e3a\u524d 5 \u4e2a\u5143\u7d20\uff0c\u7ed3\u679c\u4e3a [1, 2, 3, 4, 5]\u3002<\/p>\n
\u4f7f\u7528skip(5)\uff1a\u8fd9\u4f1a\u8df3\u8fc7\u524d5\u4e2a\u5143\u7d20\u5e76\u6536\u96c6\u5176\u4f59\u5143\u7d20\uff0c\u4ece\u800c\u5f97\u5230[6, 7, 8, 9, 10]\u3002<\/p>\n
\u7ed3\u5408skip(3)\u548climit(4)\uff1a\u9996\u5148\uff0c\u5b83\u8df3\u8fc7\u524d3\u4e2a\u5143\u7d20\uff0c\u7136\u540e\u9650\u5236\u5230\u63a5\u4e0b\u6765\u76844\u4e2a\uff0c\u4ece\u800c\u5f97\u5230\u4f4d\u7f6e4\u52307\u7684\u5143\u7d20\uff1a[4,5,6,7]\u3002<\/p>\n
\u8f93\u51fa\uff1a<\/p>\n
First 5 elements: [1, 2, 3, 4, 5]\nAfter skipping first 5 elements: [6, 7, 8, 9, 10]\nElements from 4th to 7th positions: [4, 5, 6, 7]\n\n<\/pre>\n
\u6b64\u65b9\u6cd5\u5bf9\u4e8e\u5904\u7406\u5206\u9875\u6216\u63d0\u53d6\u96c6\u5408\u4e2d\u7684\u7279\u5b9a\u8303\u56f4\u975e\u5e38\u6709\u7528\u3002<\/p>\n
\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aJava Stream API limit() \u548cskip() \u65b9\u6cd5\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n
      \u7248\u672c\u58f0\u660e \u672c\u6587\u8f6c\u8f7d\u4e8e\uff1adev.to \u5982\u6709\u4fb5\u72af\uff0c\u8bf7\u8054\u7cfb\u5220\u9664<\/p>\n","protected":false},"excerpt":{"rendered":"
Java Stream API ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-203271","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203271","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=203271"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203271\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}