{"id":39871,"date":"2023-12-11T14:49:05","date_gmt":"2023-12-11T06:49:05","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=39871"},"modified":"2023-12-11T14:49:05","modified_gmt":"2023-12-11T06:49:05","slug":"%e9%a5%bf%e6%b1%89%e5%bc%8f%e5%8d%95%e4%be%8b-%e9%9d%99%e6%80%81final%e5%8f%98%e9%87%8f-%e7%ba%bf%e7%a8%8b%e5%ae%89%e5%85%a8-java%e7%89%88","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/%e9%a5%bf%e6%b1%89%e5%bc%8f%e5%8d%95%e4%be%8b-%e9%9d%99%e6%80%81final%e5%8f%98%e9%87%8f-%e7%ba%bf%e7%a8%8b%e5%ae%89%e5%85%a8-java%e7%89%88\/","title":{"rendered":"\u997f\u6c49\u5f0f\u5355\u4f8b+ \u9759\u6001final\u53d8\u91cf \u7ebf\u7a0b\u5b89\u5168-Java\u7248"},"content":{"rendered":"

“`”<\/p>\n

\u8fd9\u79cd\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u56e0\u4e3a\u5355\u4f8b\u7684\u5b9e\u4f8b\u88ab\u58f0\u660e\u6210 static \u548c final \u53d8\u91cf\u4e86\uff0c\u5728\u7b2c\u4e00\u6b21\u52a0\u8f7d\u7c7b\u5230\u5185\u5b58\u4e2d\u65f6\u5c31\u4f1a\u521d\u59cb\u5316\uff0c\u6240\u4ee5\u521b\u5efa\u5b9e\u4f8b\u672c\u8eab\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002<\/p>\n

<pre><code class=""language-java"" lang=""java"">public class Singleton{
\n \/\/\u7c7b\u52a0\u8f7d\u65f6\u5c31\u521d\u59cb\u5316
\n private static final Singleton uniqueInstance = new Singleton();<\/p>\n

private Singleton(){}<\/p>\n

public static Singleton getInstance(){
\n return uniqueInstance;
\n }
\n}
\n<\/code><\/pre><\/p>\n

\u8fd9\u79cd\u5199\u6cd5\u5982\u679c\u5b8c\u7f8e\u7684\u8bdd\uff0c\u5c31\u6ca1\u5fc5\u8981\u5728\u5570\u55e6\u90a3\u4e48\u591a\u53cc\u68c0\u9501\u7684\u95ee\u9898\u4e86\u3002\u7f3a\u70b9\u662f\u5b83\u4e0d\u662f\u4e00\u79cd\u61d2\u52a0\u8f7d\u6a21\u5f0f\uff08lazy initialization\uff09\uff0c\u5355\u4f8b\u4f1a\u5728\u52a0\u8f7d\u7c7b\u540e\u4e00\u5f00\u59cb\u5c31\u88ab\u521d\u59cb\u5316\uff0c\u5373\u4f7f\u5ba2\u6237\u7aef\u6ca1\u6709\u8c03\u7528 getInstance()\u65b9\u6cd5\u3002\u997f\u6c49\u5f0f\u7684\u521b\u5efa\u65b9\u5f0f\u5728\u4e00\u4e9b\u573a\u666f\u4e2d\u5c06\u65e0\u6cd5\u4f7f\u7528\uff1a\u8b6c\u5982 Singleton \u5b9e\u4f8b\u7684\u521b\u5efa\u662f\u4f9d\u8d56\u53c2\u6570\u6216\u8005\u914d\u7f6e\u6587\u4ef6\u7684\uff0c\u5728 getInstance() \u4e4b\u524d\u5fc5\u987b\u8c03\u7528\u67d0\u4e2a\u65b9\u6cd5\u8bbe\u7f6e\u53c2\u6570\u7ed9\u5b83\uff0c\u90a3\u6837\u8fd9\u79cd\u5355\u4f8b\u5199\u6cd5\u5c31\u65e0\u6cd5\u4f7f\u7528\u4e86\u3002<\/p>\n

\u00a0<\/p>\n

\u00a0<\/p>\n

<pre><code> "“`
\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"

“`” \u8fd9\u79cd\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u56e0\u4e3a\u5355\u4f8b\u7684\u5b9e\u4f8b\u88ab\u58f0\u660e\u6210 static \u548c final \u53d8\u91cf\u4e86 […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-39871","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/39871","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=39871"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/39871\/revisions"}],"predecessor-version":[{"id":39872,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/39871\/revisions\/39872"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=39871"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=39871"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=39871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}