{"id":954,"date":"2018-09-17T18:48:48","date_gmt":"2018-09-17T09:48:48","guid":{"rendered":"https:\/\/chat-messenger.com\/?p=954"},"modified":"2018-12-23T01:52:35","modified_gmt":"2018-12-22T16:52:35","slug":"calculating-dates","status":"publish","type":"post","link":"https:\/\/chat-messenger.com\/fr\/blog\/java\/calcul-des-dates","title":{"rendered":"Calculs de date\/heure Java Addition et soustraction simplifi\u00e9es"},"content":{"rendered":"<h2 class=\"common_title\"><a name=\"0\">Java <strong>Calculs de date\/heure<\/strong>Addition et soustraction simplifi\u00e9es<\/a><\/h2>\n<p>\nFacile avec Java<strong>Calculer l&#039;addition\/soustraction de date\/heure<\/strong>Pr\u00e9sentation d&#039;un exemple de programme pour ce faire.<br \/>Les caract\u00e9ristiques de l\u2019exemple de programme sont les suivantes.<\/p>\n<ul>\n<li>Renvoie le r\u00e9sultat de l\u2019ajout ou de la soustraction de la dur\u00e9e sp\u00e9cifi\u00e9e \u00e0 la date\/heure actuelle ou arbitraire.<\/li>\n<li>Si un nombre positif est sp\u00e9cifi\u00e9, le temps sera avanc\u00e9 ; s&#039;il s&#039;agit d&#039;une valeur n\u00e9gative, il sera en arri\u00e8re.<br \/>\nPar exemple, il y a 10 jours \u00e0 partir de la date et de l&#039;heure actuelles.<strong>calcul<\/strong>Si tel est le cas, ce qui suit s\u2019appliquera.<br \/>\n<b>Calendrier cal = addMonth(-10);<\/b>\n<\/li>\n<li>Vous pouvez d\u00e9finir n\u2019importe quelle dur\u00e9e pour les champs de temps ann\u00e9e, mois, jour, heure, minute, seconde et milliseconde.<br \/>\nDe plus, par rapport \u00e0 l&#039;heure sp\u00e9cifi\u00e9e<strong>calcul<\/strong>Si tel est le cas, transmettez la classe Calendar comme argument.<br \/>\nPar exemple, ce qui suit fera avancer l\u2019instance de calendrier sp\u00e9cifi\u00e9e d\u2019un an.<br \/>\n<b>Calendrier cal = add(&quot;Calendrier sp\u00e9cifi\u00e9&quot;,1,0,0,0,0,0,0);<\/b>\n<\/li>\n<li>Si la valeur de chaque champ temporel d\u00e9passe sa plage, le champ temporel imm\u00e9diatement plus grand est incr\u00e9ment\u00e9 ou d\u00e9cr\u00e9ment\u00e9.<br \/>\nPar exemple, ce qui suit avancera l\u2019heure actuelle d\u20191 heure et 5 minutes.<br \/>\n<b>Calendrier cal = addMinute(65);<\/b>\n<\/li>\n<\/ul>\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\">exemple de programme<\/a><\/h2>\n<p><textarea readonly=\"readonly\" style=\"font-size: 13px;height: 400px;\" class=\"src\" onclick=\"this.focus();this.select()\">\/**<br \/>\n * \u73fe\u5728\u306e\u65e5\u4ed8\u30fb\u6642\u523b\u304b\u3089\u6307\u5b9a\u306e\u3010\u5e74\u6570\u3011\u3092\u52a0\u7b97\u30fb\u6e1b\u7b97\u3057\u305f\u7d50\u679c\u3092\u8fd4\u3057\u307e\u3059\u3002<br \/>\n * @param addYera \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u5e74\u6570<br \/>\n * @return    \u8a08\u7b97\u5f8c\u306e Calendar \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3002<br \/>\n *\/<br \/>\npublic static Calendar addYera(int addYera){<br \/>\n    return add(null,addYera,0,0,0,0,0,0);<br \/>\n}<br \/>\n\/**<br \/>\n * \u73fe\u5728\u306e\u65e5\u4ed8\u30fb\u6642\u523b\u304b\u3089\u6307\u5b9a\u306e\u3010\u6708\u6570\u3011\u3092\u52a0\u7b97\u30fb\u6e1b\u7b97\u3057\u305f\u7d50\u679c\u3092\u8fd4\u3057\u307e\u3059\u3002<br \/>\n * @param addMonth \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u6708\u6570<br \/>\n * @return    \u8a08\u7b97\u5f8c\u306e Calendar \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3002<br \/>\n *\/<br \/>\npublic static Calendar addMonth(int addMonth){<br \/>\n    return add(null,0,addMonth,0,0,0,0,0);<br \/>\n}<br \/>\n\/**<br \/>\n * \u73fe\u5728\u306e\u65e5\u4ed8\u30fb\u6642\u523b\u304b\u3089\u6307\u5b9a\u306e\u3010\u65e5\u6570\u3011\u3092\u52a0\u7b97\u30fb\u6e1b\u7b97\u3057\u305f\u7d50\u679c\u3092\u8fd4\u3057\u307e\u3059\u3002<br \/>\n * @param addDate \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u65e5\u6570<br \/>\n * @return    \u8a08\u7b97\u5f8c\u306e Calendar \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3002<br \/>\n *\/<br \/>\npublic static Calendar addDate(int addDate){<br \/>\n    return add(null,0,0,addDate,0,0,0,0);<br \/>\n}<br \/>\n\/**<br \/>\n * \u73fe\u5728\u306e\u65e5\u4ed8\u30fb\u6642\u523b\u304b\u3089\u6307\u5b9a\u306e\u3010\u6642\u9593\u3011\u3092\u52a0\u7b97\u30fb\u6e1b\u7b97\u3057\u305f\u7d50\u679c\u3092\u8fd4\u3057\u307e\u3059\u3002<br \/>\n * @param addHour \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u6642\u9593<br \/>\n * @return    \u8a08\u7b97\u5f8c\u306e Calendar \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3002<br \/>\n *\/<br \/>\npublic static Calendar addHour(int addHour){<br \/>\n    return add(null,0,0,0,addHour,0,0,0);<br \/>\n}<br \/>\n\/**<br \/>\n * \u73fe\u5728\u306e\u65e5\u4ed8\u30fb\u6642\u523b\u304b\u3089\u6307\u5b9a\u306e\u3010\u5206\u3011\u3092\u52a0\u7b97\u30fb\u6e1b\u7b97\u3057\u305f\u7d50\u679c\u3092\u8fd4\u3057\u307e\u3059\u3002<br \/>\n * @param addMinute \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u5206<br \/>\n * @return    \u8a08\u7b97\u5f8c\u306e Calendar \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3002<br \/>\n *\/<br \/>\npublic static Calendar addMinute(int addMinute){<br \/>\n    return add(null,0,0,0,0,addMinute,0,0);<br \/>\n}<br \/>\n\/**<br \/>\n * \u73fe\u5728\u306e\u65e5\u4ed8\u30fb\u6642\u523b\u304b\u3089\u6307\u5b9a\u306e\u3010\u79d2\u3011\u3092\u52a0\u7b97\u30fb\u6e1b\u7b97\u3057\u305f\u7d50\u679c\u3092\u8fd4\u3057\u307e\u3059\u3002<br \/>\n * @param addSecond \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u79d2<br \/>\n * @return    \u8a08\u7b97\u5f8c\u306e Calendar \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3002<br \/>\n *\/<br \/>\npublic static Calendar addSecond(int addSecond){<br \/>\n    return add(null,0,0,0,0,0,addSecond,0);<br \/>\n}<br \/>\n\/**<br \/>\n * \u73fe\u5728\u306e\u65e5\u4ed8\u30fb\u6642\u523b\u304b\u3089\u6307\u5b9a\u306e\u6642\u9593\u91cf\u3092\u52a0\u7b97\u30fb\u6e1b\u7b97\u3057\u305f\u7d50\u679c\u3092\u8fd4\u3057\u307e\u3059\u3002<br \/>\n * \u5e74\u3001\u6708\u3001\u65e5\u3001\u6642\u9593\u3001\u5206\u3001\u79d2\u3001\u30df\u30ea\u79d2\u306e\u5404\u6642\u9593\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u5bfe\u3057\u3001<br \/>\n * \u4efb\u610f\u306e\u6642\u9593\u91cf\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002<br \/>\n * \u305f\u3068\u3048\u3070\u3001\u73fe\u5728\u306e\u65e5\u4ed8\u6642\u523b\u304b\u3089 10 \u65e5\u524d\u3092\u8a08\u7b97\u3059\u308b\u5834\u5408\u306f\u4ee5\u4e0b\u3068\u306a\u308a\u307e\u3059\u3002<br \/>\n * Calendar cal = add(null,0,0,-10,0,0,0,0);<br \/>\n *<br \/>\n * \u5404\u6642\u9593\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024\u304c\u305d\u306e\u7bc4\u56f2\u3092\u8d85\u3048\u305f\u5834\u5408\u3001\u6b21\u306e\u5927\u304d\u3044\u6642\u9593\u30d5\u30a3\u30fc\u30eb\u30c9\u304c<br \/>\n * \u5897\u5206\u307e\u305f\u306f\u6e1b\u5206\u3055\u308c\u307e\u3059\u3002<br \/>\n * \u305f\u3068\u3048\u3070\u3001\u4ee5\u4e0b\u3067\u306f1\u6642\u9593\u30685\u5206\u9032\u3081\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n * Calendar cal = add(null,0,0,0,0,65,0,0);<br \/>\n *<br \/>\n * \u5404\u6642\u9593\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u8a2d\u5b9a\u3059\u308b\u6570\u91cf\u304c0\u306e\u5834\u5408\u306f\u3001\u73fe\u5728\u306e\u5024\u304c\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002<br \/>\n * java.util.GregorianCalendar\u306e\u5185\u90e8\u51e6\u7406\u3067\u306f\u4ee5\u4e0b\u306e\u5206\u5c90\u3092\u884c\u3063\u3066\u3044\u308b\u3002<br \/>\n *     if (amount == 0) {<br \/>\n *         return;<br \/>\n *     }<br \/>\n *<br \/>\n * @param cal \u65e5\u4ed8\u6642\u523b\u306e\u6307\u5b9a\u304c\u3042\u308c\u3070\u30bb\u30c3\u30c8\u3059\u308b\u3002<br \/>\n *     null\u306e\u5834\u5408\u3001\u73fe\u5728\u306e\u65e5\u4ed8\u6642\u523b\u3067\u65b0\u3057\u3044Calendar\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3059\u308b\u3002<br \/>\n * @param addYera \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u5e74\u6570<br \/>\n * @param addMonth \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u6708\u6570<br \/>\n * @param addDate \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u65e5\u6570<br \/>\n * @param addHour \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u6642\u9593<br \/>\n * @param addMinute \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u5206<br \/>\n * @param addSecond \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u79d2<br \/>\n * @param addMillisecond \u52a0\u7b97\u30fb\u6e1b\u7b97\u3059\u308b\u30df\u30ea\u79d2<br \/>\n * @return    \u8a08\u7b97\u5f8c\u306e Calendar \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3002<br \/>\n *\/<br \/>\npublic static Calendar add(Calendar cal,<br \/>\n                           int addYera,int addMonth,int addDate,<br \/>\n                           int addHour,int addMinute,int addSecond,<br \/>\n                           int addMillisecond){<br \/>\n    if (cal == null) {<br \/>\n        cal = Calendar.getInstance();<br \/>\n    }<br \/>\n    cal.add(Calendar.YEAR, addYera);<br \/>\n    cal.add(Calendar.MONTH, addMonth);<br \/>\n    cal.add(Calendar.DATE, addDate);<br \/>\n    cal.add(Calendar.HOUR_OF_DAY, addHour);<br \/>\n    cal.add(Calendar.MINUTE, addMinute);<br \/>\n    cal.add(Calendar.SECOND, addSecond);<br \/>\n    cal.add(Calendar.MILLISECOND, addMillisecond);<br \/>\n    return cal;<br \/>\n}<br \/>\n<\/textarea><br \/>\n<\/p>\n<h2 class=\"common_title\"><a name=\"3\">ex\u00e9cution<\/a><\/h2>\n<p>\nDans l&#039;exemple de programme, comme valeur de retour<strong>Apr\u00e8s calcul<\/strong>Puisque nous pouvons obtenir un objet java.util.Calendar contenant la date, nous utilisons la m\u00e9thode java.util.Calendar#getTime() pour le convertir en java.util.Date et java.text.SimpleDateFormat pour le convertir en cha\u00eene de date. .\n<\/p>\n<p>\u25c6Exemple d&#039;ex\u00e9cution<\/p>\n<pre class=\"sample_src\">public static void main(String[] args) { SimpleDateFormat f = new SimpleDateFormat(&quot;aaaa\/MM\/jj HH:mm:ss&quot;); System.out.println(&quot;Date\/heure actuelle = &quot;+ f.format( ajouter (null,0,0,0,0,0,0,0).getTime())); System.out.println(&quot;Date\/heure 1 an plus tard = &quot;+ f.format(addYera(1) .getTime ())); System.out.println(&quot;Date\/heure il y a 1 mois = &quot;+ f.format(addMonth(-1).getTime())); System.out.println(&quot;3 heures plus tard Date\/heure = &quot;+ f.format(addHour(3).getTime())); System.out.println(&quot;Date\/heure il y a 30 heures = &quot;+ f.format(addHour(-30).getTime ())); System.out.println(&quot;Date et heure apr\u00e8s 40 minutes = &quot;+ f.format(addMinute(40).getTime())); System.out.println(&quot;Date et heure apr\u00e8s 80 secondes = &quot;+ f.format (addMinute(40).getTime())); Time = &quot;+ f.format(addSecond(80).getTime())); System.out.println(&quot;Date\/heure 4 jours \u00e0 partir d&#039;il y a 1 mois = &quot;+ f.format(add(null,0, -1,4,0,0,0,0).getTime())); }\r\n<\/pre>\n<p>\u25c6R\u00e9sultats d&#039;ex\u00e9cution<br \/>\nLa date et l&#039;heure actuelles sont le 25\/03\/2008 00:00:00.<\/p>\n<pre class=\"console\">Date\/heure actuelle = 25\/03\/2008 00:00:00 Date\/heure un an plus tard = 25\/03\/2009 00:00:00 Date\/heure il y a un mois = 25\/02\/2008 00:00 :00 Date et heure 3 heures plus tard = 25\/03\/2008 03:00:00 Date et heure il y a 30 heures = 23\/03\/2008 18:00:00 Date et heure 40 minutes plus tard = 25\/03\/2008 00:40:00 Date et heure 80 secondes plus tard = 25\/03\/2008 00:01:20 Date et heure 4 jours depuis 1 mois = 29\/02\/2008 00:00:00\r\n<\/pre>\n<p>*2008 est une ann\u00e9e bissextile, le dernier jour du mois de f\u00e9vrier sera donc le 29.<\/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>Calculs de date\/heure Java Addition\/soustraction facile Un exemple de programme pour calculer facilement l&#039;addition\/soustraction de dates\/heures en Java [\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\/954"}],"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=954"}],"version-history":[{"count":6,"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/posts\/954\/revisions"}],"predecessor-version":[{"id":1877,"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/posts\/954\/revisions\/1877"}],"wp:attachment":[{"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/media?parent=954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/categories?post=954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chat-messenger.com\/fr\/wp-json\/wp\/v2\/tags?post=954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}