{"id":286,"date":"2017-01-17T16:00:00","date_gmt":"2017-01-17T07:00:00","guid":{"rendered":"https:\/\/java-code.jp\/?p=286"},"modified":"2020-03-10T15:53:45","modified_gmt":"2020-03-10T06:53:45","slug":"%e6%97%a5%e4%bb%98%ef%bc%8f%e6%99%82%e5%88%bb%e3%82%92%e6%95%b4%e5%bd%a2%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/java-code.jp\/286","title":{"rendered":"DateFormat\u30af\u30e9\u30b9"},"content":{"rendered":"

\u65e5\u4ed8\uff0f\u6642\u523b\u3092\u6574\u5f62\u3059\u308b – DateFormat\u30af\u30e9\u30b9<\/em><\/p>\n

\n
public static final DateFormat getInstance()<\/dt>\n
public static final DateFormat getDateInstance(int dStyle [,Locale loc])<\/dt>\n
public static final DateFormat getTimeInstance(int tStyle [,Locale loc])<\/dt>\n
public static final DateFormat getDateTimeInstance(<\/dt>\n
int dStyle, int tStyle [,Locale loc])<\/dt>\n
dStyle\uff1a\u65e5\u4ed8\u30b9\u30bf\u30a4\u30eb<\/dd>\n
tStyle\uff1a\u6642\u523b\u30b9\u30bf\u30a4\u30eb<\/dd>\n
loc\uff1a\u5229\u7528\u3059\u308b\u30ed\u30b1\u30fc\u30eb<\/dd>\n<\/dl>\n

\u65e5\u4ed8\uff0f\u6642\u523b\u3092\u6574\u5f62\u3059\u308b\u306b\u306f\u3001DateFormat\u30af\u30e9\u30b9\uff08java.text\u30d1\u30c3\u30b1\u30fc\u30b8\uff09\u3092\u5229\u7528\u3057\u307e\u3059\u3002DateFormat\u30af\u30e9\u30b9\u3067\u306f\u3001\uff08new\u6f14\u7b97\u5b50\u3067\u306f\u306a\u304f\uff09\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30e1\u30bd\u30c3\u30c9\u3067\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n
DateFormat\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u751f\u6210\u306e\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9<\/th>\n<\/tr>\n
\u30e1\u30bd\u30c3\u30c9<\/th>\n\u6982\u8981<\/th>\n<\/tr>\n
getInstance<\/td>\n\u65e5\u4ed8\uff0f\u6642\u523b\u3092SHORT\u30b9\u30bf\u30a4\u30eb\u3067\u6574\u5f62<\/td>\n<\/tr>\n
getDateInstance<\/td>\n\u65e5\u4ed8\u3092\u6307\u5b9a\u306e\u30b9\u30bf\u30a4\u30eb\u3067\u6574\u5f62<\/td>\n<\/tr>\n
getTimeInstance<\/td>\n\u6642\u523b\u3092\u6307\u5b9a\u306e\u30b9\u30bf\u30a4\u30eb\u3067\u6574\u5f62<\/td>\n<\/tr>\n
getDateTimeInstance\t<\/td>\n\u65e5\u4ed8\uff0f\u6642\u523b\u3092\u6307\u5b9a\u306e\u30b9\u30bf\u30a4\u30eb\u3067\u6574\u5f62<\/td>\n<\/tr>\n<\/table>\n

\u5f15\u6570dStyle\uff0ftStyle\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5024\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n
\u5f15\u6570dStyle\uff0ftStyle\u306e\u8a2d\u5b9a\u5024<\/th>\n<\/tr>\n
\u8a2d\u5b9a\u5024<\/th>\n\u6982\u8981<\/th>\n\u623b\u308a\u5024\uff08\u4f8b\uff09<\/th>\n<\/tr>\n
FULL<\/td>\n\u5168\u3066\u306e\u8981\u7d20\u3092\u542b\u3080\u30b9\u30bf\u30a4\u30eb<\/td>\n2020\u5e745\u670824\u65e5 15\u664225\u520607\u79d2 JST<\/td>\n<\/tr>\n
LONG<\/td>\n\u9577\u3044\u5f62\u5f0f<\/td>\n2020\/05\/24 15:34:26 JST<\/td>\n<\/tr>\n
MEDIUM<\/td>\n\u4e2d\u304f\u3089\u3044\u306e\u5f62\u5f0f<\/td>\n2020\/05\/24 15:35:00<\/td>\n<\/tr>\n
SHORT<\/td>\n\u77ed\u3044\u5f62\u5f0f<\/td>\n20\/05\/24 15:35<\/td>\n<\/tr>\n<\/table>\n

\u4ee5\u4e0b\u306f\u3001\u73fe\u5728\u306e\u65e5\u4ed8\uff0f\u6642\u523b\u3092\u3055\u307e\u3056\u307e\u306a\u5f62\u5f0f\u3067\u6574\u5f62\u3059\u308b\u4f8b\u3067\u3059\u3002<\/p>\n

UtilFormat.java<\/p>\n

\n
\r\npackage com.example.mynavi.util;\r\n\r\nimport java.text.DateFormat;\r\nimport java.util.Date;\r\n\r\npublic class UtilFormat {\r\n  public static void main(String[] args) {\r\n    Date d = new Date();\r\n    DateFormat f_dts = DateFormat.getInstance();\r\n    DateFormat f_d = DateFormat.getDateInstance(DateFormat.FULL);\r\n    DateFormat f_t = DateFormat.getTimeInstance(DateFormat.FULL);\r\n    DateFormat f_dt = \r\n      DateFormat.getDateTimeInstance(DateFormat.FULL, DateFormat.FULL);\r\n    System.out.println(f_dts.format(d));\t\/\/ \u7d50\u679c\uff1a2020\/01\/06 8:25\r\n    System.out.println(f_d.format(d));\t\/\/ \u7d50\u679c\uff1a2020\u5e741\u67086\u65e5\u6708\u66dc\u65e5\r\n    System.out.println(f_t.format(d));\t\/\/ \u7d50\u679c\uff1a8\u664225\u520611\u79d2 \u65e5\u672c\u6a19\u6e96\u6642\r\n    System.out.println(f_dt.format(d));\t\/\/ \u7d50\u679c\uff1a2020\u5e741\u67086\u65e5\u6708\u66dc\u65e5 8\u664225\u520611\u79d2 \u65e5\u672c\u6a19\u6e96\u6642\r\n  }\r\n}\r\n<\/pre>\n
<\/div>\n","protected":false},"excerpt":{"rendered":"
\u65e5\u4ed8\uff0f\u6642\u523b\u3092\u6574\u5f62\u3059\u308b – DateFormat\u30af\u30e9\u30b9 public static final DateFormat getInstance() public static final DateFormat g […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-286","post","type-post","status-publish","format-standard","hentry","category-utility"],"_links":{"self":[{"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/posts\/286"}],"collection":[{"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/comments?post=286"}],"version-history":[{"count":10,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/posts\/286\/revisions"}],"predecessor-version":[{"id":1582,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/posts\/286\/revisions\/1582"}],"wp:attachment":[{"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/media?parent=286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/categories?post=286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/tags?post=286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}