{"id":169,"date":"2003-08-27T22:04:02","date_gmt":"2003-08-27T13:04:02","guid":{"rendered":"\/?p=169"},"modified":"2012-11-21T08:52:08","modified_gmt":"2012-11-20T23:52:08","slug":"todays-effective-java-3","status":"publish","type":"post","link":"https:\/\/www.hiro345.net\/blogs\/hiro345\/archives\/169.html","title":{"rendered":"Today&#8217;s Effective Java 2003\/08\/27"},"content":{"rendered":"<p>&#8211; \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u751f\u6210\u3068\u6d88\u6ec5 &#8211;<br \/>\nprivate\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067Singleton\u7279\u6027\u3092\u5f37\u8abf\u3059\u308b<br \/>\n<!--more--><br \/>\nstatic\u5909\u6570\u5ba3\u8a00\u6642\u306b\u521d\u671f\u5316\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u540c\u671f\u306b\u95a2\u3059\u308b\u554f\u984c\u306f\u3053\u3053\u3067\u306f\u307e\u3060\u8b70\u8ad6\u3055\u308c\u3066\u3044\u306a\u3044\u3002<br \/>\nSingleton\u5b9f\u88c5\u306b\u3042\u305f\u3063\u3066\u306f\u3001\uff12\u3064\u306e\u65b9\u6cd5\u304c\u63d0\u793a\u3055\u308c\u3066\u3044\u308b\u304c\u3001\u5c06\u6765\u3082Singleton\u3067\u3042\u308b\u3068\u78ba\u4fe1\u3067\u304d\u308b\u5834\u5408\u306f\u3001\u524d\u8005\u306e\u65b9\u6cd5\u3092\u63a1\u7528\u3057\u3001\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306b\u306f\u5f8c\u8005\u306e\u65b9\u6cd5\u3092\u63a1\u7528\u3059\u308b\u306e\u304c\u826f\u3044\u3068\u306e\u3053\u3068\u3002<br \/>\n\u500b\u4eba\u7684\u306b\u306fpublic\u306a\u30d5\u30a1\u30af\u30c8\u30ea\u30e1\u30bd\u30c3\u30c9\u3092\u63d0\u4f9b\u3059\u308b\u5f8c\u8005\u306e\u65b9\u6cd5\u304c\u8272\u3005\u878d\u901a\u304c\u805e\u304d\u305d\u3046\u306a\u306e\u3067\u3001\u305d\u3061\u3089\u306e\u63a1\u7528\u304c\u591a\u304f\u306a\u308a\u305d\u3046\u306a\u6c17\u304c\u3059\u308b\u3002<\/p>\n<p>public class Singleton {<br \/>\n\u3000public static final Singleton instance = new Singleton();<br \/>\n\u3000private Singleton() { &#8230; }<br \/>\n\u3000&#8230;<br \/>\n}<\/p>\n<p>public class Singleton {<br \/>\n\u3000private static final Singleton instance = new Singleton();<br \/>\n\u3000private Singleton() { &#8230; }<br \/>\n\u3000public static Singleton getInstance() { return instance; }<br \/>\n\u3000&#8230;<br \/>\n}<\/p>\n<p>\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u53ef\u80fd\u306b\u3059\u308b\u305f\u3081\u306b\u306f\u3001readResolve\u30e1\u30bd\u30c3\u30c9\u3082\u63d0\u4f9b\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<br \/>\nprivate Object readResolve() throws ObjectStreamException {<br \/>\n\u3000return instance;<br \/>\n}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8211; \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u751f\u6210\u3068\u6d88\u6ec5 &#8211; private\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067Singleton\u7279\u6027\u3092\u5f37\u8abf\u3059\u308b<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-169","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/169","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/comments?post=169"}],"version-history":[{"count":1,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/169\/revisions"}],"predecessor-version":[{"id":11836,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/169\/revisions\/11836"}],"wp:attachment":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/media?parent=169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/categories?post=169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/tags?post=169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}