{"id":948,"date":"2018-09-17T18:43:54","date_gmt":"2018-09-17T09:43:54","guid":{"rendered":"https:\/\/chat-messenger.com\/?p=948"},"modified":"2019-07-01T00:27:48","modified_gmt":"2019-06-30T15:27:48","slug":"chenh-lech-ngay","status":"publish","type":"post","link":"https:\/\/chat-messenger.com\/vi\/blog\/java\/date-difference","title":{"rendered":"Java 2\u3064\u306e\u65e5\u4ed8\u306e\u5dee\u3092\u6c42\u3081\u308b"},"content":{"rendered":"<h2 class=\"common_title\"><a name=\"0\">Java 2\u3064\u306e\u65e5\u4ed8\u306e\u5dee\u3092\u6c42\u3081\u308b<\/a><\/h2>\n<p>\nJava \u3067\u30012 \u3064\u306e<strong>\u65e5\u4ed8\u306e\u5dee<\/strong>\u3092\u6c42\u3081\u308b\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<br \/>\n\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u6bd4\u8f03\u5bfe\u8c61\u306e\u65e5\u4ed8\u304c\u3001\u6587\u5b57\u5217\uff08 yyyy\/MM\/dd \uff09\u306e\u5834\u5408\u3001java.util.Date \u306e\u5834\u5408\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002\n<\/p>\n<p><strong>\u65e5\u4ed8\u306e\u5dee<\/strong>\u3092\u6c42\u3081\u308b\u8a08\u7b97\u65b9\u6cd5\u306f\u4ee5\u4e0b\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u6700\u521d\u306b 2 \u3064\u306e\u65e5\u4ed8\u3092 long \u5024\u306b\u5909\u63db\u3057\u307e\u3059\u3002<br \/>\n    \u203b\u3053\u306e long \u5024\u306f 1970 \u5e74 1 \u6708 1 \u65e5 00:00:00 GMT \u304b\u3089\u306e\u7d4c\u904e\u30df\u30ea\u79d2\u6570\u3068\u306a\u308a\u307e\u3059\u3002<\/li>\n<li>\u6b21\u306b\u305d\u306e\u5dee\u3092\u6c42\u3081\u307e\u3059\u3002<\/li>\n<li>\u4e0a\u8a18\u306e\u8a08\u7b97\u3067\u51fa\u305f\u6570\u91cf\u3092 1 \u65e5\u306e\u6642\u9593\u3067\u5272\u308b\u3053\u3068\u3067\u65e5\u4ed8\u306e\u5dee\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n    \u203b1 \u65e5 (24 \u6642\u9593) \u306f\u300186,400,000 \u30df\u30ea\u79d2\u3067\u3059\u3002<\/li>\n<\/ol>\n<h2 class=\"common_title\"><a name=\"1\">\u30b5\u30f3\u30d7\u30eb\u30bd\u30fc\u30b9<\/a><\/h2>\n<p><textarea readonly=\"readonly\" style=\"font-size: 13px;height: 600px;\" class=\"src\" onclick=\"this.focus();this.select()\">\/**<br \/>\n * 2\u3064\u306e\u65e5\u4ed8\u306e\u5dee\u3092\u6c42\u3081\u307e\u3059\u3002<br \/>\n * \u65e5\u4ed8\u6587\u5b57\u5217 strDate1 &#8211; strDate2 \u304c\u4f55\u65e5\u304b\u3092\u8fd4\u3057\u307e\u3059\u3002<br \/>\n *<br \/>\n * @param strDate1    \u65e5\u4ed8\u6587\u5b57\u5217 yyyy\/MM\/dd<br \/>\n * @param strDate2    \u65e5\u4ed8\u6587\u5b57\u5217 yyyy\/MM\/dd<br \/>\n * @return    2\u3064\u306e\u65e5\u4ed8\u306e\u5dee<br \/>\n * @throws ParseException \u65e5\u4ed8\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u304c\u4e0d\u6b63\u306a\u5834\u5408<br \/>\n *\/<br \/>\npublic static int differenceDays(String strDate1,String strDate2)<br \/>\n    throws ParseException {<br \/>\n    Date date1 = DateFormat.getDateInstance().parse(strDate1);<br \/>\n    Date date2 = DateFormat.getDateInstance().parse(strDate2);<br \/>\n    return differenceDays(date1,date2);<br \/>\n}<br \/>\n\/**<br \/>\n * 2\u3064\u306e\u65e5\u4ed8\u306e\u5dee\u3092\u6c42\u3081\u307e\u3059\u3002<br \/>\n * java.util.Date \u578b\u306e\u65e5\u4ed8 date1 &#8211; date2 \u304c\u4f55\u65e5\u304b\u3092\u8fd4\u3057\u307e\u3059\u3002<br \/>\n *<br \/>\n * \u8a08\u7b97\u65b9\u6cd5\u306f\u4ee5\u4e0b\u3068\u306a\u308a\u307e\u3059\u3002<br \/>\n * 1.\u6700\u521d\u306b2\u3064\u306e\u65e5\u4ed8\u3092 long \u5024\u306b\u5909\u63db\u3057\u307e\u3059\u3002<br \/>\n * \u3000\u203b\u3053\u306e long \u5024\u306f 1970 \u5e74 1 \u6708 1 \u65e5 00:00:00 GMT \u304b\u3089\u306e<br \/>\n * \u3000\u7d4c\u904e\u30df\u30ea\u79d2\u6570\u3068\u306a\u308a\u307e\u3059\u3002<br \/>\n * 2.\u6b21\u306b\u305d\u306e\u5dee\u3092\u6c42\u3081\u307e\u3059\u3002<br \/>\n * 3.\u4e0a\u8a18\u306e\u8a08\u7b97\u3067\u51fa\u305f\u6570\u91cf\u3092 1 \u65e5\u306e\u6642\u9593\u3067\u5272\u308b\u3053\u3068\u3067<br \/>\n * \u3000\u65e5\u4ed8\u306e\u5dee\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n * \u3000\u203b1 \u65e5 ( 24 \u6642\u9593) \u306f\u300186,400,000 \u30df\u30ea\u79d2\u3067\u3059\u3002<br \/>\n *<br \/>\n * @param date1    \u65e5\u4ed8 java.util.Date<br \/>\n * @param date2    \u65e5\u4ed8 java.util.Date<br \/>\n * @return    2\u3064\u306e\u65e5\u4ed8\u306e\u5dee<br \/>\n *\/<br \/>\npublic static int differenceDays(Date date1,Date date2) {<br \/>\n    long datetime1 = date1.getTime();<br \/>\n    long datetime2 = date2.getTime();<br \/>\n    long one_date_time = 1000 * 60 * 60 * 24;<br \/>\n    long diffDays = (datetime1 &#8211; datetime2) \/ one_date_time;<br \/>\n    return (int)diffDays;<br \/>\n}<br \/>\n<\/textarea><\/p>\n<p><script type=\"text\/javascript\" src=\"https:\/\/chat-messenger.com\/js\/common.js?dd12sssas2223\" charset=\"UTF-8\"><\/script><br \/>\n<script type=\"text\/javascript\"> writePR(); <\/script><\/p>\n<h2 class=\"common_title\"><a name=\"2\">th\u1ef1c thi<\/a><\/h2>\n<p>\u25c6V\u00ed d\u1ee5<\/p>\n<pre class=\"sample_src\">public static void main(String[] args) {\r\n    int ret = differenceDays(\"2008\/6\/2\",\"2008\/6\/1\");\r\n    System.out.println(\"\u7d50\u679c1 = \"+ret);\r\n    \r\n    ret = differenceDays(\"2008\/6\/1\",\"2008\/6\/3\");\r\n    System.out.println(\"\u7d50\u679c2 = \"+ret);\r\n\r\n    \/\/ 5\u6708\u306e\u65e5\u6570\u306f31\u65e5\r\n    ret = differenceDays(\"2008\/6\/1\",\"2008\/5\/1\");\r\n    System.out.println(\"\u7d50\u679c3 = \"+ret);\r\n\r\n    \/\/ 6\u6708\u306e\u65e5\u6570\u306f30\u65e5\r\n    ret = differenceDays(\"2008\/7\/1\",\"2008\/6\/1\");\r\n    System.out.println(\"\u7d50\u679c4 = \"+ret);\r\n\r\n    \/\/ 2008\u5e74\u306f\u958f\u5e74\u306e\u305f\u30812\u6708\u306e\u6708\u672b\u65e5\u4ed8\u306f29\u65e5\r\n    ret = differenceDays(\"2008\/3\/1\",\"2008\/2\/28\");\r\n    System.out.println(\"\u7d50\u679c5 = \"+ret);\r\n}\r\n<\/pre>\n<p>\u25c6K\u1ebft qu\u1ea3 th\u1ef1c thi<\/p>\n<pre class=\"console\">\u7d50\u679c1 = 1\r\n\u7d50\u679c2 = -2\r\n\u7d50\u679c3 = 31\r\n\u7d50\u679c4 = 30\r\n\u7d50\u679c5 = 2\r\n<\/pre>\n<p>\n2\u3064\u306e\u65e5\u4ed8\u306e\u5dee\u3092\u6c42\u3081\u308b\u65b9\u6cd5\u306f\u6bd4\u8f03\u7684\u7c21\u5358\u3067\u3059\u304c\u3001\u6708\u6570\u306e\u5dee\u3092\u6c42\u3081\u308b\u5834\u5408\u306f\u5c11\u3057\u96e3\u6613\u5ea6\u304c\u3042\u304c\u308a\u307e\u3059\u3002\u53c2\u8003\u307e\u3067\u306b\u4ee5\u4e0b\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<br \/>\n\u300c<a href=\"https:\/\/chat-messenger.com\/vi\/blog\/java\/thang-chenh-lech\/\" title=\"Java 2\u3064\u306e\u65e5\u4ed8\u306e\u6708\u6570\u306e\u5dee\u3092\u6c42\u3081\u308b\">Java 2\u3064\u306e\u65e5\u4ed8\u306e\u6708\u6570\u306e\u5dee\u3092\u6c42\u3081\u308b<\/a>\u300d<\/p>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u306f Chat&amp;Messenger \u306e\u300c<a href=\"\/vi\/thu-cong\/lich-trinh_lich\/lich\/\" title=\"\u30ab\u30ec\u30f3\u30c0\u30fc\u30fb\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u7ba1\u7406\u6a5f\u80fd\">\u30ab\u30ec\u30f3\u30c0\u30fc\u30fb\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u7ba1\u7406\u6a5f\u80fd<\/a>\u300d\u3067\u5b9f\u969b\u306b\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>Java 2\u3064\u306e\u65e5\u4ed8\u306e\u5dee\u3092\u6c42\u3081\u308b Java \u3067\u30012 \u3064\u306e\u65e5\u4ed8\u306e\u5dee\u3092\u6c42\u3081\u308b\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002 \u30b5\u30f3 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[19],"tags":[],"class_list":["post-948","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts\/948","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/comments?post=948"}],"version-history":[{"count":8,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts\/948\/revisions"}],"predecessor-version":[{"id":3655,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts\/948\/revisions\/3655"}],"wp:attachment":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/media?parent=948"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/categories?post=948"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/tags?post=948"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}