{"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":"date-difference","status":"publish","type":"post","link":"https:\/\/chat-messenger.com\/fr\/blog\/java\/difference-de-date","title":{"rendered":"Java trouve la diff\u00e9rence entre deux dates"},"content":{"rendered":"<h2 class=\"common_title\"><a name=\"0\">Java trouve la diff\u00e9rence entre deux dates<\/a><\/h2>\n<p>\nEn Java, deux<strong>diff\u00e9rence de date<\/strong>Pr\u00e9sentation d&#039;un exemple de programme qui recherche .<br \/>\nDans l&#039;exemple de programme, la date \u00e0 comparer est une cha\u00eene (aaaa\/MM\/jj) ou java.util.Date.\n<\/p>\n<p><strong>diff\u00e9rence de date<\/strong>La m\u00e9thode de calcul pour trouver est la suivante.<\/p>\n<ol>\n<li>Convertissez d\u2019abord les deux dates en valeurs longues.<br \/>\n    *Cette valeur longue correspond au nombre de millisecondes \u00e9coul\u00e9es depuis le 1er janvier 1970, 00:00:00 GMT.<\/li>\n<li>Ensuite, trouvez la diff\u00e9rence.<\/li>\n<li>Vous pouvez trouver la diff\u00e9rence de dates en divisant la quantit\u00e9 obtenue dans le calcul ci-dessus par le nombre d&#039;heures dans une journ\u00e9e.<br \/>\n    *Un jour (24 heures) \u00e9quivaut \u00e0 86\u00a0400\u00a0000 millisecondes.<\/li>\n<\/ol>\n<h2 class=\"common_title\"><a name=\"1\">source d&#039;\u00e9chantillon<\/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\">ex\u00e9cution<\/a><\/h2>\n<p>\u25c6Exemple d&#039;ex\u00e9cution<\/p>\n<pre class=\"sample_src\">public static void main(String[] args) { int ret = diff\u00e9renceDays(&quot;2008\/6\/2&quot;,&quot;2008\/6\/1&quot;); System.out.println(&quot;Result1 = &quot;+ret); ret = diff\u00e9renceDays (&quot;2008\/6\/1&quot;,&quot;2008\/6\/3&quot;); System.out.println(&quot;Result 2 = &quot;+ret); \/\/ Le nombre de jours en mai est de 31 ret = diff\u00e9renceDays(&quot;2008\/ 6\/1&quot;,&quot;2008\/5\/1&quot;); System.out.println(&quot;Result 3 = &quot;+ret); \/\/ Le nombre de jours en juin est de 30 ret = diff\u00e9renceDays(&quot;2008\/7\/1&quot; , &quot;2008\/6\/1&quot;); System.out.println(&quot;Result 4 = &quot;+ret); \/\/ Puisque 2008 est une ann\u00e9e bissextile, le dernier jour de f\u00e9vrier est le 29 ret = diff\u00e9renceDays(&quot;2008\/3 \/1 &quot;,&quot;2008\/2\/28&quot;); System.out.println(&quot;R\u00e9sultat 5 = &quot;+ret); }\r\n<\/pre>\n<p>\u25c6R\u00e9sultats d&#039;ex\u00e9cution<\/p>\n<pre class=\"console\">R\u00e9sultat 1 = 1 R\u00e9sultat 2 = -2 R\u00e9sultat 3 = 31 R\u00e9sultat 4 = 30 R\u00e9sultat 5 = 2\r\n<\/pre>\n<p>\nTrouver la diff\u00e9rence entre deux dates est relativement facile, mais trouver la diff\u00e9rence en mois est un peu plus difficile. Veuillez voir ci-dessous pour r\u00e9f\u00e9rence.<br \/>\n&quot;<a href=\"https:\/\/chat-messenger.com\/fr\/blog\/java\/mois-de-difference\/\" title=\"Java trouve la diff\u00e9rence en mois entre deux dates\">Java trouve la diff\u00e9rence en mois entre deux dates<\/a>\u00bb<\/p>\n<p>Cet exemple de programme est destin\u00e9 \u00e0 Chat&amp;Messenger.<a href=\"https:\/\/chat-messenger.com\/fr\/manuel\/schedule_calendar\/calendrier-2\/\" title=\"Fonction de gestion de calendrier\/horaire\">Fonction de gestion de calendrier\/horaire<\/a>\u00bb est effectivement utilis\u00e9.<\/p>","protected":false},"excerpt":{"rendered":"<p>Java Trouver la diff\u00e9rence entre deux dates Pr\u00e9sentation d&#039;un exemple de programme pour trouver la diff\u00e9rence entre deux dates en Java. San [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":""},"categories":[19],"tags":[],"_links":{"self":[{"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/posts\/948"}],"collection":[{"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/comments?post=948"}],"version-history":[{"count":8,"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/posts\/948\/revisions"}],"predecessor-version":[{"id":3655,"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/posts\/948\/revisions\/3655"}],"wp:attachment":[{"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/media?parent=948"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/categories?post=948"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/tags?post=948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}