{"id":232,"date":"2014-07-25T12:23:04","date_gmt":"2014-07-25T03:23:04","guid":{"rendered":"http:\/\/kei0310.info\/?p=232"},"modified":"2014-07-25T12:24:43","modified_gmt":"2014-07-25T03:24:43","slug":"java-%e6%96%87%e5%ad%97%e5%88%97%e3%81%ae%e4%b8%80%e9%83%a8%e3%82%92%e5%88%87%e3%82%8a%e5%8f%96%e3%82%8b%e6%96%b9%e6%b3%95%ef%bc%88substring%ef%bc%89","status":"publish","type":"post","link":"http:\/\/kei0310.info\/?p=232","title":{"rendered":"[java] \u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u5207\u308a\u53d6\u308b\u65b9\u6cd5\uff08substring\uff09"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3002<\/p>\n<p>\u4eca\u56de\u306f\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u5207\u308a\u53d6\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<br \/>\n\u5177\u4f53\u7684\u306b\u306f\u3001String.substring\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u306e\u8aac\u660e\u3067\u3059\u3002<\/p>\n<p>\u3042\u308b\u6587\u5b57\u5217\u306e\uff58\u756a\u76ee\u304b\u3089\uff59\u756a\u76ee\u307e\u3067\u306e\u6587\u5b57\u3092\u629c\u304d\u53d6\u308b\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<\/p>\n<p>\u25cf\u6587\u6cd5<br \/>\npublic String substring(beginindex, endindex)<\/p>\n<p>beginindex: \u958b\u59cb\u4f4d\u7f6e\u306eindex\u3067\u3059\u3002\u5148\u982d\u304b\u3089\u306a\u3089\u300c0\u300d\u3068\u306a\u308a\u307e\u3059\u3002<br \/>\nendindex: \u7d42\u4e86\u4f4d\u7f6e\u306eindex\u306b1\u3092\u52a0\u3048\u305f\u5024\u3067\u3059\u3002\u76f4\u89b3\u7684\u3067\u306f\u306a\u3044\u3067\u3059\u304c\u3001endindex-beginindex\u304c\u5207\u308a\u53d6\u308a\u5f8c\u306e\u6587\u5b57\u5217\u9577\u306b\u306a\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<p><b><br \/>\n\u307e\u305f\u3001String\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u306e\u3067\u3001\u300c\u5207\u308a\u53d6\u308a\u5143\u306e\u6587\u5b57\u5217\u306f\u5909\u5316\u305b\u305a\u305d\u306e\u307e\u307e\u300d\u3067\u3059\u3002<br \/>\n\u5207\u308a\u53d6\u3089\u308c\u305f\u6587\u5b57\u5217\u306f\u3001\u5143\u306e\u6587\u5b57\u5217\u3068\u5225\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u306a\u308a\u307e\u3059\u3002<br \/>\n<\/b><\/p>\n<p>\u25cf\u899a\u3048\u65b9<br \/>\n\u79c1\u306f\u3044\u3064\u3082\u30c9\u5fd8\u308c\u3057\u3066\u3057\u307e\u3046\u306e\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7d75\u3067\u899a\u3048\u3066\u307e\u3059\u3002<br \/>\n\u300c20140725\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u306e\u300c\u5e74\u300d\u3092\u5207\u308a\u53d6\u308a\u305f\u3044\u5834\u5408\u3001\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\n&quot;20140725&quot;.substring(0, 4) \/\/ \u21d2\u300c2014\u300d\u304c\u5207\u308a\u53d6\u3089\u308c\u308b\r\n<\/pre>\n<p><a href=\"http:\/\/kei0310.info\/wp-content\/uploads\/2014\/07\/substring1.png\"><img loading=\"lazy\" src=\"http:\/\/kei0310.info\/wp-content\/uploads\/2014\/07\/substring1-300x52.png\" alt=\"substring1\" width=\"300\" height=\"52\" class=\"alignnone size-medium wp-image-235\" srcset=\"http:\/\/kei0310.info\/wp-content\/uploads\/2014\/07\/substring1-300x52.png 300w, http:\/\/kei0310.info\/wp-content\/uploads\/2014\/07\/substring1.png 517w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>\u300c20140725\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u306e\u300c\u6708\u300d\u3092\u5207\u308a\u53d6\u308a\u305f\u3044\u5834\u5408\u3001\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\n&quot;20140725&quot;.substring(4, 6) \/\/ \u21d2\u300c07\u300d\u304c\u5207\u308a\u53d6\u3089\u308c\u308b\r\n<\/pre>\n<p><a href=\"http:\/\/kei0310.info\/wp-content\/uploads\/2014\/07\/substring2.png\"><img loading=\"lazy\" src=\"http:\/\/kei0310.info\/wp-content\/uploads\/2014\/07\/substring2-300x52.png\" alt=\"substring2\" width=\"300\" height=\"52\" class=\"alignnone size-medium wp-image-233\" srcset=\"http:\/\/kei0310.info\/wp-content\/uploads\/2014\/07\/substring2-300x52.png 300w, http:\/\/kei0310.info\/wp-content\/uploads\/2014\/07\/substring2.png 517w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>\u300c20140725\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u306e\u300c\u65e5\u300d\u3092\u5207\u308a\u53d6\u308a\u305f\u3044\u5834\u5408\u3001\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\n&quot;20140725&quot;.substring(6, 8) \/\/ \u21d2\u300c25\u300d\u304c\u5207\u308a\u53d6\u3089\u308c\u308b\r\n<\/pre>\n<p><a href=\"http:\/\/kei0310.info\/wp-content\/uploads\/2014\/07\/substring3.png\"><img loading=\"lazy\" src=\"http:\/\/kei0310.info\/wp-content\/uploads\/2014\/07\/substring3-300x52.png\" alt=\"substring3\" width=\"300\" height=\"52\" class=\"alignnone size-medium wp-image-234\" srcset=\"http:\/\/kei0310.info\/wp-content\/uploads\/2014\/07\/substring3-300x52.png 300w, http:\/\/kei0310.info\/wp-content\/uploads\/2014\/07\/substring3.png 517w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>\u25cf\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0<br \/>\n\u6700\u5f8c\u306b\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u5b9f\u969b\u306b\u8a66\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>YYYYMMDD\u5f62\u5f0f\u306e\u65e5\u4ed8\u30ea\u30b9\u30c8\u3092YYYY-MM-DD\u5f62\u5f0f\u306b\u5909\u63db\u3057\u3066\u51fa\u529b\u3057\u307e\u3059\u3002<\/p>\n<p>\u25cf\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n<h6>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\npackage test.string.substring;\r\n\r\nimport java.util.ArrayList;\r\nimport java.util.List;\r\n\r\npublic class TestSubstring {\r\n\r\n\tpublic static final String SEPERATOR = &quot;-&quot;;\r\n\r\n\tpublic static void main(String[] args){\r\n\r\n\t\t\/\/ \u30ea\u30b9\u30c8\u521d\u671f\u5316\r\n\t\tList&lt;String&gt; list = new ArrayList&lt;String&gt;();\r\n\r\n\t\t\/\/ \u6587\u5b57\u5217\u30ea\u30b9\u30c8\u4f5c\u6210\r\n\t\tlist.add(&quot;20140701&quot;);\r\n\t\tlist.add(&quot;20140702&quot;);\r\n\t\tlist.add(&quot;20140703&quot;);\r\n\t\tlist.add(&quot;20140704&quot;);\r\n\t\tlist.add(&quot;20140705&quot;);\r\n\r\n\t\tfor(String str : list){\r\n\r\n\t\t\t\/\/ YYYY-MM-DD\u5f62\u5f0f\u3067\u51fa\u529b\u3059\u308b\r\n\t\t\tSystem.out.println(str.substring(0, 4) + SEPERATOR + str.substring(4,  6) + SEPERATOR + str.substring(6, 8));\r\n\t\t}\r\n\t}\r\n}\r\n<\/pre>\n<\/h6>\n<p>\u25cf\u5b9f\u884c\u7d50\u679c<\/p>\n<h6>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\n2014-07-01\r\n2014-07-02\r\n2014-07-03\r\n2014-07-04\r\n2014-07-05\r\n<\/pre>\n<\/h6>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3002 \u4eca\u56de\u306f\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u5207\u308a\u53d6\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002 \u5177\u4f53\u7684\u306b\u306f\u3001String.substring\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u306e\u8aac\u660e\u3067\u3059\u3002 \u3042\u308b\u6587\u5b57\u5217\u306e\uff58\u756a\u76ee\u304b\u3089\uff59\u756a\u76ee\u307e\u3067\u306e\u6587\u5b57\u3092\u629c\u304d\u53d6\u308b\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002 \u25cf\u6587\u6cd5 pub [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,28],"tags":[183,76,79,77,78,46],"_links":{"self":[{"href":"http:\/\/kei0310.info\/index.php?rest_route=\/wp\/v2\/posts\/232"}],"collection":[{"href":"http:\/\/kei0310.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/kei0310.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/kei0310.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/kei0310.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=232"}],"version-history":[{"count":2,"href":"http:\/\/kei0310.info\/index.php?rest_route=\/wp\/v2\/posts\/232\/revisions"}],"predecessor-version":[{"id":237,"href":"http:\/\/kei0310.info\/index.php?rest_route=\/wp\/v2\/posts\/232\/revisions\/237"}],"wp:attachment":[{"href":"http:\/\/kei0310.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/kei0310.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=232"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/kei0310.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}