﻿{"id":895,"date":"2013-05-01T05:46:50","date_gmt":"2013-04-30T20:46:50","guid":{"rendered":"http:\/\/yucchi.jp\/blog\/?p=895"},"modified":"2013-05-01T05:47:59","modified_gmt":"2013-04-30T20:47:59","slug":"%e3%82%82%e3%81%a3%e3%81%a8-lambda-%e3%81%9d%e3%81%ae%ef%bc%95","status":"publish","type":"post","link":"http:\/\/yucchi.jp\/blog\/?p=895","title":{"rendered":"\u3082\u3063\u3068 Lambda \u305d\u306e\uff15"},"content":{"rendered":"<p>\u65e9\u3044\u3082\u306e\u3067\u3082\u3046\u4e94\u6708\u306a\u3093\u3067\u3059\u306d\u3002<\/p>\n<p>\u4e16\u9593\u4e00\u822c\u306f\u30b4\u30fc\u30eb\u30c7\u30f3\u30a6\u30a3\u30fc\u30af\u306a\u3093\u3067\u3057\u3087\u3046\u304c\u79c1\u306f\u307e\u3060\u307e\u3060\u50cd\u304b\u306a\u304f\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n<p>\u660e\u65e5\u306e\u591c\u52e4\uff08\u9577\u6642\u9593\uff09\u304c\u7d42\u308f\u308c\u3070\u4e16\u9593\u4e00\u822c\u3088\u308a\u77ed\u3044\u3051\u3069\u30b4\u30fc\u30eb\u30c7\u30f3\u30a6\u30a3\u30fc\u30af\u304c\u59cb\u307e\u308a\u307e\u3059\u3002<\/p>\n<p>\u3060\u304b\u3089\u4f55\u304b\u30a4\u30d9\u30f3\u30c8\u304c\u3042\u308b\u306e\u304b\u3063\u3066\u8a00\u308f\u308c\u308b\u3068\u4f55\u3082\u306a\u3044\u3067\u3059\u306d\u3002<\/p>\n<p>\u904b\u8ee2\u624b + \u53ec\u4f7f\u3044 + \u03b1\u3000\u3067\u9699\u3092\u307f\u3066\u30b4\u30ed\u30b4\u30ed\u3059\u308b\u304f\u3089\u3044\u304b\u306a\u3002<\/p>\n<p>\u3055\u3066\u3001\u4e16\u9593\u304c\u30b4\u30fc\u30eb\u30c7\u30f3\u30a6\u30a3\u30fc\u30af\u306b\u6d6e\u304b\u308c\u3066\u3044\u308b\u4eca\u65e5\u3053\u306e\u9803\u3067\u3059\u304c\u4eca\u65e5\u306e\u30d6\u30ed\u30b0\u30cd\u30bf\u306f\u3044\u3064\u3082\u306e Java8 \u306e\u65b0\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f Twitter \u4e0a\u3067\u3064\u3076\u3084\u304b\u308c\u3066\u3044\u305f\u30cd\u30bf\u3067\u3059\u3002<\/p>\n<p>Twitter \u3068\u8a00\u3048\u3070\u307e\u3060\u30d9\u30fc\u30b7\u30c3\u30af\u8a8d\u8a3c\u304c\u4f7f\u3048\u308b\u9803\u306b\u81ea\u5206\u7528\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u4f5c\u308a\u304b\u3051\u3066\u3044\u305f\u6642\u306b\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u3068\u3063\u3066\u307e\u3057\u305f\u3002<\/p>\n<p>\u3042\u308b\u65e5\u7a81\u7136\u30d9\u30fc\u30b7\u30c3\u30af\u8a8d\u8a3c\u304c\u4f7f\u3048\u306a\u304f\u306a\u308a\u305d\u308c\u3067\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u5236\u4f5c\u4e2d\u6b62\u3068 Twitter \u81ea\u4f53\u3082\u4f7f\u3063\u3066\u306a\u3044\u72b6\u614b\u3060\u3063\u305f\u306e\u3067\u3059\u304c\u3001\u4f55\u6c17\u306b\u518d\u958b\u3057\u305f\u3089\u7f8e\u5473\u3057\u3044\u60c5\u5831\u3082\u3042\u308b\u306e\u3067\u5fa9\u6d3b\u4e2d\u3067\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306e\u30cd\u30bf\u306f\u308f\u305a\u304b 140 \u6587\u5b57\u4ee5\u5185\u3068\u3044\u3046\u5236\u9650\u306e Twitter \u304b\u3089\u3044\u305f\u3060\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>1 \u304b\u3089 10 \u307e\u3067\u8868\u793a\u3055\u305b\u308b\u3060\u3051\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<\/p>\n<pre title=\"One2Ten\">package jp.yucchi.pkg1_to_10;\r\n\r\nimport java.util.stream.Streams;\r\n\r\npublic class One2Ten {\r\n\r\n    public static void main(String[] args) {\r\n        Streams.intRange(1, 11).forEach(System.out::println);\r\n    }\r\n    \r\n}\r\n\r\n<\/pre>\n<p><font color=\"#9b00d3\" size=\"5\"><strong>\u3053\u308c\u3063\u3066\u3042\u308a\u306a\u3093\u3067\u3059\u304b\u306d\uff1f<\/strong><\/font><\/p>\n<p>\u5b9f\u884c\u7d50\u679c\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>1<br \/>2<br \/>3<br \/>4<br \/>5<br \/>6<br \/>7<br \/>8<br \/>9<br \/>10<\/p>\n<p><font color=\"#00ff00\" size=\"5\"><strong>All&#8217;s well that ends well.\u3000\u306a\u3093\u3066\u306d\uff57<\/strong><\/font><\/p>\n<p>JavaDoc \u3092\u30b5\u30e9\u30c3\u3068\u30fb\u30fb\u30fb\u3000\u4eca\u56de\u306f\u512a\u79c0\u306a\u7ffb\u8a33\u652f\u63f4\u30bd\u30d5\u30c8\u3092\u4f7f\u308f\u306a\u3044\u306e\u3067\u3054\u81ea\u5206\u3067\u7ffb\u8a33\u3059\u308b\u304b\u304a\u6c17\u306b\u5165\u308a\u306e\u7ffb\u8a33\u30bd\u30d5\u30c8\u3092\u3064\u304b\u3063\u3066\u306d\uff08\u30f2\u30d2<\/p>\n<p>&nbsp;<\/p>\n<p><font color=\"#ff0000\" size=\"4\"><strong>Streams<\/strong><\/font><\/p>\n<p><b><a href=\"about:blank*0\" target=\"_blank\">java.\u200butil.\u200bstream<\/a><\/b><\/p>\n<p><tt>public final class <b>Streams<\/b> extends <a href=\"about:blank*1\" target=\"_blank\">Object<\/a><\/tt><\/p>\n<p>Utility methods for operating on and creating streams. <\/p>\n<p>Unless otherwise stated, streams are created as sequential streams. A sequential stream can be transformed into a parallel stream by calling the <code>parallel()<\/code> method on the created stream. <\/p>\n<p><b>\u65e5\u4ed8:<\/b><\/p>\n<blockquote>\n<p>1.8 <\/p>\n<\/blockquote>\n<p>&nbsp;<\/p>\n<p><font color=\"#ff0000\" size=\"4\"><strong>intRange()<\/strong><\/font><\/p>\n<p><b><a href=\"about:blank*0\" target=\"_blank\">java.\u200butil.\u200bstream.\u200bStreams<\/a><\/b><\/p>\n<p><tt>public static <a href=\"about:blank*1\" target=\"_blank\">IntStream<\/a> <b>intRange<\/b>(int start, int end)<\/tt><\/p>\n<p>Creates a sequential <code>IntStream<\/code> from <code>start<\/code> (inclusive) to <code>end<\/code> (exclusive) by an incremental or decremental step of 1. <\/p>\n<p><b>\u30d1\u30e9\u30e1\u30fc\u30bf:<\/b><\/p>\n<blockquote><p><code>start<\/code> &#8211; the (inclusive) initial value<br \/><code>end<\/code> &#8211; the exclusive upper bound<\/p><\/blockquote>\n<p><b>\u623b\u308a\u5024:<\/b><\/p>\n<blockquote><p>A sequential <code>IntStream<\/code> for a range of <code>int<\/code> elements <\/p><\/blockquote>\n<p>&nbsp; <\/p>\n<p><font color=\"#0000ff\" size=\"5\"><strong>Twitter \u3067\u3082 Good \u306a\u60c5\u5831\u3092\u5165\u624b\u3067\u304d\u308b\u3053\u3068\u304c\u5b09\u3057\u3044\uff01<\/strong><\/font><\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u304a\u7d04\u675f\u306e\u6642\u9593\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u300c\u3082\u3063\u3068 Lambda \u300d\u30b7\u30ea\u30fc\u30ba\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u5f97\u305f\u60c5\u5831\u3092\u5143\u306b\u305d\u308c\u3092\u5c11\u3057\u5909\u66f4\u3057\u3066\u3044\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n<p>\u60b2\u3057\u3044\u3053\u3068\u306b\u305d\u306e\u60c5\u5831\u6e90\u306f\u82f1\u8a9e\u306a\u306e\u3067\u8a73\u3057\u3044\u5185\u5bb9\u306f\u308f\u304b\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3088\u3063\u3066\u79c1\u306e\u63a8\u6e2c\u3067\u89e3\u91c8\u3055\u308c\u305f\u5185\u5bb9\u3068\u306a\u3063\u3066\u307e\u3059\u306e\u3067\u9593\u9055\u3044\u304c\u3042\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>Java8 \u3082\u307e\u3060 build86 \u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u306e\u3067 API \u306e\u5909\u66f4\u306b\u3088\u308a\u8a18\u8ff0\u65b9\u6cd5\u304c\u5909\u308f\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u65e9\u304f\u6b63\u5f0f\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u3066\u65e5\u672c\u8a9e\u3067\u3053\u306e\u8d85\u4fbf\u5229\u3067\u7d20\u6575\u306a\u65b0\u6a5f\u80fd\u3092\u52c9\u5f37\u3057\u305f\u3044\u4eca\u65e5\u3053\u306e\u9803\u3067\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<div id=\"scid:0767317B-992E-4b12-91E0-4F059A8CECA8:7e0bcc05-ad56-48e9-b8a4-18f35c856380\" class=\"wlWriterEditableSmartContent\" style=\"float: none; padding-bottom: 0px; padding-top: 0px; padding-left: 0px; margin: 0px; display: inline; padding-right: 0px\">Hatena \u30bf\u30b0: <a href=\"http:\/\/b.hatena.ne.jp\/t\/Java\" rel=\"tag\">Java<\/a><\/div>\n<div class='wp_social_bookmarking_light'>\n            <div class=\"wsbl_hatena\"><a 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href='http:\/\/www.facebook.com\/share.php?u=http%3A%2F%2Fyucchi.jp%2Fblog%2F%3Fp%3D895&t=%E3%82%82%E3%81%A3%E3%81%A8%20Lambda%20%E3%81%9D%E3%81%AE%EF%BC%95' title='Facebook \u306b\u30b7\u30a7\u30a2' rel=nofollow class='wp_social_bookmarking_light_a' target=_blank><img src='http:\/\/yucchi.jp\/blog\/wp-content\/plugins\/wp-social-bookmarking-light\/public\/images\/facebook.png' alt='Facebook \u306b\u30b7\u30a7\u30a2' title='Facebook \u306b\u30b7\u30a7\u30a2' width='16' height='16' class='wp_social_bookmarking_light_img' \/><\/a><\/div>\n            <div class=\"wsbl_google_plus_one\"><g:plusone size=\"medium\" annotation=\"none\" href=\"http:\/\/yucchi.jp\/blog\/?p=895\" ><\/g:plusone><\/div>\n            <div class=\"wsbl_twitter\"><a href=\"https:\/\/twitter.com\/share\" class=\"twitter-share-button\" data-url=\"http:\/\/yucchi.jp\/blog\/?p=895\" data-text=\"\u3082\u3063\u3068 Lambda \u305d\u306e\uff15\" data-lang=\"ja\">Tweet<\/a><\/div>\n    <\/div>\n<br class='wp_social_bookmarking_light_clear' \/>\n","protected":false},"excerpt":{"rendered":"<p>\u65e9\u3044\u3082\u306e\u3067\u3082\u3046\u4e94\u6708\u306a\u3093\u3067\u3059\u306d\u3002 \u4e16\u9593\u4e00\u822c\u306f\u30b4\u30fc\u30eb\u30c7\u30f3\u30a6\u30a3\u30fc\u30af\u306a\u3093\u3067\u3057\u3087\u3046\u304c\u79c1\u306f\u307e\u3060\u307e\u3060\u50cd\u304b\u306a\u304f\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002 \u660e\u65e5\u306e\u591c\u52e4\uff08\u9577\u6642\u9593\uff09\u304c\u7d42\u308f\u308c\u3070\u4e16\u9593\u4e00\u822c\u3088\u308a\u77ed\u3044\u3051\u3069\u30b4\u30fc\u30eb\u30c7\u30f3\u30a6\u30a3\u30fc\u30af\u304c\u59cb\u307e\u308a\u307e\u3059\u3002 \u3060\u304b\u3089\u4f55\u304b\u30a4\u30d9\u30f3\u30c8\u304c\u3042\u308b\u306e\u304b\u3063\u3066\u8a00\u308f\u308c\u308b\u3068\u4f55\u3082\u306a\u3044\u3067\u3059\u306d\u3002 \u904b\u8ee2\u624b + \u53ec\u4f7f\u3044 + \u03b1\u3000\u3067\u9699\u3092\u307f\u3066\u30b4\u30ed\u30b4\u30ed\u3059\u308b\u304f\u3089\u3044\u304b\u306a\u3002 \u3055\u3066\u3001\u4e16\u9593\u304c\u30b4\u30fc\u30eb\u30c7\u30f3\u30a6\u30a3\u30fc\u30af\u306b\u6d6e\u304b\u308c\u3066\u3044\u308b\u4eca\u65e5\u3053\u306e\u9803\u3067\u3059\u304c\u4eca\u65e5\u306e\u30d6\u30ed\u30b0\u30cd\u30bf\u306f\u3044\u3064\u3082\u306e Java8 \u306e\u65b0\u6a5f\u80fd\u3067\u3059\u3002 \u3053\u308c\u306f Twitter \u4e0a\u3067\u3064\u3076\u3084\u304b\u308c\u3066\u3044\u305f\u30cd\u30bf\u3067\u3059\u3002 Twitter \u3068\u8a00\u3048\u3070\u307e\u3060\u30d9\u30fc\u30b7\u30c3\u30af\u8a8d\u8a3c\u304c\u4f7f\u3048\u308b\u9803\u306b\u81ea\u5206\u7528\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u4f5c\u308a\u304b\u3051\u3066\u3044\u305f\u6642\u306b\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u3068\u2026<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[17],"class_list":["post-895","post","type-post","status-publish","format-standard","hentry","category-java","tag-java"],"_links":{"self":[{"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/895","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=895"}],"version-history":[{"count":2,"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/895\/revisions"}],"predecessor-version":[{"id":896,"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/895\/revisions\/896"}],"wp:attachment":[{"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=895"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/yucchi.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=895"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}