{"id":114186,"date":"2026-10-08T15:09:05","date_gmt":"2026-10-08T07:09:05","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/114186.html"},"modified":"2026-10-08T15:09:05","modified_gmt":"2026-10-08T07:09:05","slug":"java-static-%e5%85%b3%e9%94%ae%e5%ad%97%e8%af%a6%e8%a7%a3%ef%bd%9c%e9%9d%99%e6%80%81%e5%8f%98%e9%87%8f%e3%80%81%e9%9d%99%e6%80%81%e6%96%b9%e6%b3%95%e3%80%81%e9%9d%99%e6%80%81%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/114186.html","title":{"rendered":"Java static \u5173\u952e\u5b57\u8be6\u89e3\uff5c\u9759\u6001\u53d8\u91cf\u3001\u9759\u6001\u65b9\u6cd5\u3001\u9759\u6001\u4ee3\u7801\u5757"},"content":{"rendered":"<p>\u5927\u5bb6\u597d&#xff0c;\u8fd9\u91cc\u662f\u540e\u7aef\u57fa\u7840\u62fe\u5149\u96c6\u3002<\/p>\n<p>static \u8fd9\u4e2a\u5173\u952e\u5b57&#xff0c;\u51e0\u4e4e\u6bcf\u4e2a Java \u9879\u76ee\u91cc\u90fd\u80fd\u770b\u5230\u3002 \u4f46\u5f88\u591a\u4eba\u5199\u5230\u5b83\u65f6&#xff0c;\u53ea\u77e5\u9053 \u201c\u52a0\u4e86 static \u5c31\u80fd\u76f4\u63a5\u8c03\u7528\u201d&#xff0c;\u81f3\u4e8e\u4e3a\u4ec0\u4e48\u80fd\u8c03\u7528\u3001\u4ec0\u4e48\u65f6\u5019\u8be5\u7528\u3001\u4ec0\u4e48\u65f6\u5019\u4e0d\u80fd\u7528&#xff0c;\u5374\u8bf4\u4e0d\u6e05\u695a\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u6211\u4eec\u901a\u8fc7\u7528\u300c\u73ed\u7ea7\u5b66\u751f\u300d\u628astatic \u4e00\u6b21\u6027\u641e\u900f\u5f7b\u3002<\/p>\n<h3>\u4e00\u3001\u5148\u5efa\u7acb\u4e00\u4e2a\u7c7b\u6bd4\u6a21\u578b<\/h3>\n<p>\u628a class \u60f3\u6210\u4e00\u4e2a\u73ed\u7ea7&#xff0c;static \u5c31\u662f\u8d34\u5728\u73ed\u7ea7\u516c\u544a\u680f\u4e0a\u7684\u4e1c\u897f&#xff0c;\u800c\u4e0d\u662f\u6bcf\u4e2a\u5b66\u751f\u81ea\u5df1\u4e66\u5305\u91cc\u7684\u4e1c\u897f\u3002<\/p>\n<table>\n<tr>\u7c7b\u6bd4Java \u6982\u5ff5<\/tr>\n<tbody>\n<tr>\n<td>\u73ed\u7ea7\u516c\u544a\u680f&#xff08;\u5168\u73ed\u5171\u7528\u4e00\u4efd&#xff09;<\/td>\n<td>\u9759\u6001\u53d8\u91cf \/ \u9759\u6001\u65b9\u6cd5<\/td>\n<\/tr>\n<tr>\n<td>\u6bcf\u4e2a\u5b66\u751f\u81ea\u5df1\u7684\u4e66\u5305&#xff08;\u4eba\u624b\u4e00\u4efd&#xff09;<\/td>\n<td>\u5b9e\u4f8b\u53d8\u91cf \/\u6210\u5458\u53d8\u91cf\/ \u5b9e\u4f8b\u65b9\u6cd5<\/td>\n<\/tr>\n<tr>\n<td>\u5f00\u5b66\u7b2c\u4e00\u5929\u5168\u73ed\u4e00\u8d77\u5e03\u7f6e\u516c\u544a\u680f<\/td>\n<td>\u9759\u6001\u4ee3\u7801\u5757<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u4e8c\u3001static \u53d8\u91cf&#xff1a;\u5168\u73ed\u7ea7\u5171\u7528\u7684\u4e00\u4efd<\/h3>\n<p>\u6211\u4eec\u53ef\u4ee5\u628a\u7c7b\u60f3\u8c61\u6210\u4e00\u4e2a\u73ed\u7ea7\u3002 \u666e\u901a\u6210\u5458\u53d8\u91cf&#xff0c;\u662f\u6bcf\u4e2a\u5b66\u751f\u81ea\u5df1\u7684\u4f5c\u4e1a\u672c&#xff0c;\u6bcf\u4e2a\u5bf9\u8c61\u90fd\u6709\u4e00\u4efd\u3002 \u800c static \u53d8\u91cf&#xff0c;\u662f\u8d34\u5728\u6559\u5ba4\u5899\u4e0a\u7684\u73ed\u7ea7\u82b1\u540d\u518c&#xff0c;\u5168\u73ed\u5171\u7528\u4e00\u4efd\u3002<\/p>\n<p>class Student {<br \/>\n    private String name;          \/\/ \u666e\u901a\u6210\u5458\u53d8\u91cf&#xff1a;\u6bcf\u4e2a\u5b66\u751f\u81ea\u5df1\u7684\u540d\u5b57<br \/>\n    private static String classRoom; \/\/ \u9759\u6001\u53d8\u91cf&#xff1a;\u5168\u73ed\u5171\u7528\u7684\u6559\u5ba4<br \/>\n}<\/p>\n<ul>\n<li>name&#xff1a;new Student() \u4e00\u6b21&#xff0c;\u5c31\u591a\u4e00\u4efd&#xff0c;\u5404\u81ea\u72ec\u7acb\u3002<\/li>\n<li>school&#xff1a;\u4e0d\u7ba1 new \u591a\u5c11\u4e2a\u5b66\u751f&#xff0c;\u5185\u5b58\u91cc\u53ea\u6709\u4e00\u4efd&#xff0c;\u6240\u6709\u5b66\u751f\u5171\u4eab\u3002<\/li>\n<\/ul>\n<p>Student a &#061; new Student(); a.name &#061; &#034;\u5c0f\u660e&#034;;<br \/>\nStudent b &#061; new Student(); b.name &#061; &#034;\u5c0f\u7ea2&#034;;<\/p>\n<p>Student.classRoom &#061; &#034;\u4e8c\u73ed&#034;;   \/\/ \u6539\u4e00\u6b21<br \/>\nSystem.out.println(a.school); \/\/ \u4e8c\u73ed<br \/>\nSystem.out.println(b.school); \/\/ \u4e8c\u73ed \u2014\u2014 \u5927\u5bb6\u90fd\u53d8\u4e86<\/p>\n<p>\u5173\u952e\u70b9&#xff1a;\u9759\u6001\u53d8\u91cf\u5c5e\u4e8e\u7c7b&#xff0c;\u4e0d\u5c5e\u4e8e\u5bf9\u8c61\u3002 \u53ea\u8981\u8fd9\u4e2a\u7c7b\u88ab\u52a0\u8f7d&#xff0c;static \u53d8\u91cf\u5c31\u4f1a\u5b58\u5728\u3002 \u4efb\u4f55\u4e00\u4e2a\u5bf9\u8c61\u4fee\u6539\u5b83&#xff0c;\u5176\u4ed6\u5bf9\u8c61\u770b\u5230\u7684\u90fd\u662f\u4fee\u6539\u540e\u7684\u503c\u3002 \u7528 \u7c7b\u540d.\u53d8\u91cf \u8bbf\u95ee\u624d\u662f\u89c4\u8303\u5199\u6cd5\u3002<\/p>\n<p>\u9002\u7528\u573a\u666f&#xff1a;\u771f\u6b63\u5168\u5c40\u5171\u4eab\u3001\u4e0e\u5177\u4f53\u5bf9\u8c61\u65e0\u5173\u7684\u6570\u636e\u3002<\/p>\n<ul>\n<li>\u5e38\u91cf&#xff1a;static final double PI &#061; 3.14159;<\/li>\n<li>\u8ba1\u6570\u5668&#xff1a;\u7edf\u8ba1\u4e00\u5171\u521b\u5efa\u4e86\u591a\u5c11\u4e2a\u5b66\u751f<\/li>\n<li>\u914d\u7f6e\u9879\u3001\u5168\u5c40\u7f13\u5b58<\/li>\n<\/ul>\n<p>\u4e00\u53e5\u8bdd\u8bb0\u5fc6&#xff1a;\u666e\u901a\u53d8\u91cf\u5c5e\u4e8e\u5bf9\u8c61&#xff0c;static \u53d8\u91cf\u5c5e\u4e8e\u7c7b\u3002<\/p>\n<h3>\u4e09\u3001static \u65b9\u6cd5&#xff1a;\u4e0d\u9700\u8981\u5b66\u751f\u672c\u4eba&#xff0c;\u4e5f\u80fd\u4f7f\u7528\u7684\u516c\u5171\u996e\u6c34\u673a<\/h3>\n<p>\u666e\u901a\u6210\u5458\u65b9\u6cd5&#xff0c;\u5fc5\u987b\u5148\u6709\u4e00\u4e2a\u5177\u4f53\u5bf9\u8c61\u624d\u80fd\u8c03\u7528&#xff0c;\u5c31\u50cf\u5fc5\u987b\u627e\u5230\u67d0\u4e2a\u5b66\u751f&#xff0c;\u624d\u80fd\u770b\u4ed6\u7684\u4f5c\u4e1a\u672c\u3002 static \u65b9\u6cd5\u4e0d\u4f9d\u8d56\u5177\u4f53\u5bf9\u8c61&#xff0c;\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7\u7c7b\u540d\u8c03\u7528&#xff0c;\u5c31\u50cf\u6559\u5ba4\u91cc\u7684\u516c\u5171\u996e\u6c34\u673a&#xff0c;\u8c01\u90fd\u53ef\u4ee5\u7528\u3002<\/p>\n<p>\u6b63\u56e0\u4e3a\u4e0d\u4f9d\u8d56\u5bf9\u8c61&#xff0c;static \u65b9\u6cd5\u91cc\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95ee\u666e\u901a\u6210\u5458\u53d8\u91cf\u6216\u666e\u901a\u6210\u5458\u65b9\u6cd5\u3002 \u5b83\u80fd\u8bbf\u95ee\u7684&#xff0c;\u4e3b\u8981\u662f static \u6210\u5458&#xff0c;\u4ee5\u53ca\u65b9\u6cd5\u53c2\u6570\u91cc\u4f20\u5165\u7684\u6570\u636e\u3002<\/p>\n<p>class Student {<br \/>\n    static int count &#061; 0;<\/p>\n<p>    static int getCount() {   \/\/ \u9759\u6001\u65b9\u6cd5<br \/>\n        return count;<br \/>\n    }<\/p>\n<p>    void sayHello() {         \/\/ \u666e\u901a\u6210\u5458\u65b9\u6cd5<br \/>\n        System.out.println(&#034;\u6211\u662f\u5b66\u751f&#034;);<br \/>\n    }<br \/>\n}<\/p>\n<p>\u8c03\u7528\u65b9\u5f0f\u5bf9\u6bd4&#xff1a;<\/p>\n<p>Student.getCount();   \/\/ \u9759\u6001\u65b9\u6cd5&#xff1a;\u7c7b\u540d\u76f4\u63a5\u8c03&#xff0c;\u4e0d\u9700\u8981\u5bf9\u8c61<br \/>\nStudent s &#061; new Student();<br \/>\ns.sayHello();         \/\/ \u666e\u901a\u6210\u5458\u65b9\u6cd5&#xff1a;\u5fc5\u987b\u5148\u6709\u5bf9\u8c61<\/p>\n<p>\u6838\u5fc3\u89c4\u5219&#xff08;\u4e5f\u662f\u9762\u8bd5\u5e38\u8003&#xff09;&#xff1a;<\/p>\n<p>\u9759\u6001\u65b9\u6cd5\u91cc\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95ee\u5b9e\u4f8b\u53d8\u91cf\u548c\u5b9e\u4f8b\u65b9\u6cd5\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48&#xff1f;\u56e0\u4e3a\u9759\u6001\u65b9\u6cd5\u53ef\u4ee5\u5728\u6ca1\u6709\u4efb\u4f55\u5bf9\u8c61\u7684\u60c5\u51b5\u4e0b\u88ab\u8c03\u7528&#xff0c;\u800c\u5b9e\u4f8b\u53d8\u91cf\/\u65b9\u6cd5\u5fc5\u987b\u4f9d\u9644\u4e8e\u67d0\u4e2a\u5bf9\u8c61\u624d\u5b58\u5728\u3002\u4f60\u6ca1\u5bf9\u8c61&#xff0c;\u51ed\u4ec0\u4e48\u7528\u522b\u4eba\u7684\u4e66\u5305&#xff1f;<\/p>\n<p>class Student {<br \/>\n    String name;<br \/>\n    static void printName() {<br \/>\n        System.out.println(name); \/\/ \u274c \u7f16\u8bd1\u62a5\u9519&#xff01;name \u662f\u54ea\u4e2a\u5b66\u751f\u7684&#xff1f;<br \/>\n    }<br \/>\n}<\/p>\n<p>\u53cd\u8fc7\u6765&#xff0c;\u5b9e\u4f8b\u65b9\u6cd5\u53ef\u4ee5\u8bbf\u95ee\u9759\u6001\u53d8\u91cf\/\u9759\u6001\u65b9\u6cd5&#xff08;\u56e0\u4e3a\u5bf9\u8c61\u4e00\u5b9a\u5b58\u5728\u4e8e\u7c7b\u4e4b\u4e2d&#xff09;\u3002<\/p>\n<p>\u9002\u7528\u573a\u666f&#xff1a;\u5de5\u5177\u7c7b\u65b9\u6cd5&#xff0c;\u4e0e\u5177\u4f53\u5bf9\u8c61\u65e0\u5173\u3002<\/p>\n<ul>\n<li>Math.max()\u3001Arrays.sort()\u3001Integer.parseInt()<\/li>\n<li>\u5de5\u5382\u65b9\u6cd5\u3001\u5355\u4f8b\u7684 getInstance()<\/li>\n<\/ul>\n<h3>\u56db\u3001static \u4ee3\u7801\u5757&#xff1a;\u5f00\u5b66\u7b2c\u4e00\u5929&#xff0c;\u5168\u73ed\u4e00\u8d77\u5e03\u7f6e<\/h3>\n<p>static \u4ee3\u7801\u5757\u4f1a\u5728\u7c7b\u7b2c\u4e00\u6b21\u88ab\u52a0\u8f7d\u65f6\u6267\u884c&#xff0c;\u800c\u4e14\u901a\u5e38\u53ea\u6267\u884c\u4e00\u6b21&#xff0c;\u65e9\u4e8e\u4efb\u4f55\u5bf9\u8c61\u521b\u5efa\u3002<\/p>\n<p>class Student {<br \/>\n    static String classRoom;<br \/>\n    static List&lt;String&gt; rules;<\/p>\n<p>    static {                       \/\/ \u9759\u6001\u4ee3\u7801\u5757<br \/>\n        classRoom &#061; &#034;\u4e8c\u73ed&#034;;<br \/>\n        rules &#061; new ArrayList&lt;&gt;();<br \/>\n        rules.add(&#034;\u4e0d\u51c6\u8fdf\u5230&#034;);<br \/>\n        System.out.println(&#034;\u9759\u6001\u4ee3\u7801\u5757\u6267\u884c\u4e86&#034;);<br \/>\n    }<br \/>\n}<\/p>\n<p>new Student();<br \/>\nnew Student();<br \/>\nnew Student();<br \/>\n\/\/ \u8f93\u51fa&#xff1a;\u9759\u6001\u4ee3\u7801\u5757\u6267\u884c\u4e86   \u2014\u2014 \u53ea\u6253\u5370\u4e00\u6b21&#xff01;<\/p>\n<p>\u9002\u7528\u573a\u666f&#xff1a;\u521d\u59cb\u5316\u9759\u6001\u8d44\u6e90&#xff0c;\u4e14\u521d\u59cb\u5316\u903b\u8f91\u6bd4\u8f83\u590d\u6742&#xff08;\u4e0d\u6b62\u4e00\u884c\u8d4b\u503c&#xff09;\u3002<\/p>\n<ul>\n<li>\u52a0\u8f7d\u914d\u7f6e\u6587\u4ef6<\/li>\n<li>\u521d\u59cb\u5316\u9759\u6001\u96c6\u5408\u3001\u8fde\u63a5\u6c60<\/li>\n<li>\u6ce8\u518c\u9a71\u52a8<\/li>\n<\/ul>\n<p>\u5982\u679c\u53ea\u662f\u7b80\u5355\u8d4b\u503c&#xff0c;\u76f4\u63a5 static int x &#061; 10; \u5c31\u591f\u4e86&#xff0c;\u4e0d\u7528\u5199\u4ee3\u7801\u5757\u3002<\/p>\n<p>\u5b83\u9002\u5408\u505a\u4e00\u4e9b\u7c7b\u7ea7\u522b\u7684\u521d\u59cb\u5316&#xff0c;\u6bd4\u5982\u8bfb\u53d6\u914d\u7f6e\u3001\u521d\u59cb\u5316\u9759\u6001\u8d44\u6e90\u3001\u5efa\u7acb\u8fde\u63a5\u6c60\u7b49\u3002 \u4f46\u522b\u628a\u590d\u6742\u4e1a\u52a1\u903b\u8f91\u585e\u8fdb\u53bb&#xff0c;\u5426\u5219\u7c7b\u52a0\u8f7d\u8fc7\u7a0b\u4f1a\u53d8\u5f97\u5f88\u91cd&#xff0c;\u95ee\u9898\u4e5f\u5f88\u96be\u6392\u67e5\u3002<\/p>\n<h3>\u4e94\u3001AI \u6700\u7231\u8e29\u7684\u5751<\/h3>\n<p>AI \u5199\u5de5\u5177\u7c7b\u65f6&#xff0c;\u5f88\u5bb9\u6613\u628a\u65b9\u6cd5\u90fd\u5199\u6210 static\u3002 \u8fd9\u5bf9\u4e8e \u201c\u7eaf\u5de5\u5177\u65b9\u6cd5\u201d \u6765\u8bf4\u6ca1\u95ee\u9898&#xff0c;\u6bd4\u5982\u5b57\u7b26\u4e32\u5904\u7406\u3001\u6570\u503c\u8ba1\u7b97\u3002 \u4f46\u5982\u679c\u5bf9\u8c61\u672c\u8eab\u6709\u72b6\u6001&#xff0c;\u5c31\u4e0d\u8be5\u4e71\u7528 static\u3002<\/p>\n<p>\/\/ \u274c \u9519\u8bef\u793a\u8303&#xff1a;\u628a\u6709\u72b6\u6001\u7684\u8ba1\u6570\u5668\u5199\u6210 static<br \/>\nclass Counter {<br \/>\n    private static int count &#061; 0;<\/p>\n<p>    public void increment() {<br \/>\n        count&#043;&#043;;<br \/>\n    }<br \/>\n}<\/p>\n<p>\u8fd9\u91cc\u7684\u95ee\u9898\u662f&#xff1a;count \u88ab\u6240\u6709\u5bf9\u8c61\u5171\u7528\u3002 \u4f60\u521b\u5efa\u4e24\u4e2a Counter \u5bf9\u8c61&#xff0c;\u5404\u81ea\u8c03\u7528 increment()&#xff0c;\u7ed3\u679c\u4f1a\u4e92\u76f8\u5f71\u54cd\u3002 \u8fd9\u4e0d\u662f\u5bf9\u8c61\u81ea\u5df1\u7684\u72b6\u6001&#xff0c;\u800c\u662f\u5168\u5c40\u72b6\u6001\u3002<\/p>\n<p>\/\/ \u2705 \u6b63\u786e\u793a\u8303&#xff1a;\u72b6\u6001\u5c5e\u4e8e\u5bf9\u8c61&#xff0c;\u5de5\u5177\u884c\u4e3a\u53ef\u4ee5 static<br \/>\nclass Counter {<br \/>\n    private int count &#061; 0;<\/p>\n<p>    public void increment() {<br \/>\n        count&#043;&#043;;<br \/>\n    }<\/p>\n<p>    public static boolean isPositive(int value) {<br \/>\n        return value &gt; 0;<br \/>\n    }<br \/>\n}<\/p>\n<h3>\u516d\u3001static \u6700\u5bb9\u6613\u6df7\u6dc6\u7684 4 \u4e2a\u95ee\u9898<\/h3>\n<h5>\u95ee\u9898 1&#xff1a;static \u65b9\u6cd5\u91cc\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95ee\u975e static \u6210\u5458&#xff1f;<\/h5>\n<p>\u56e0\u4e3a\u975e static \u6210\u5458\u5c5e\u4e8e\u5177\u4f53\u5bf9\u8c61&#xff0c;\u800c static \u65b9\u6cd5\u8c03\u7528\u65f6&#xff0c;\u53ef\u80fd\u6839\u672c\u6ca1\u6709\u5bf9\u8c61\u5b58\u5728\u3002 \u6ca1\u6709\u5bf9\u8c61&#xff0c;\u5c31\u6ca1\u6cd5\u8bbf\u95ee\u5bf9\u8c61\u91cc\u7684\u6210\u5458\u3002<\/p>\n<h5>\u95ee\u9898 2&#xff1a;static \u53ef\u4ee5\u4fee\u9970\u7c7b\u5417&#xff1f;<\/h5>\n<p>\u53ea\u6709\u5185\u90e8\u7c7b\u53ef\u4ee5\u662f static\u3002 \u666e\u901a\u9876\u7ea7\u7c7b\u4e0d\u80fd\u7528 static \u4fee\u9970\u3002<\/p>\n<h5>\u95ee\u9898 3&#xff1a;static \u53d8\u91cf\u4e00\u5b9a\u5728\u65b9\u6cd5\u533a\u5417&#xff1f;<\/h5>\n<p>\u57fa\u7840\u7406\u89e3\u9636\u6bb5&#xff0c;\u53ef\u4ee5\u5148\u8bb0&#xff1a; static \u53d8\u91cf\u968f\u7740\u7c7b\u52a0\u8f7d\u5b58\u5728&#xff0c;\u88ab\u7c7b\u7684\u6240\u6709\u5bf9\u8c61\u5171\u4eab\u3002<\/p>\n<h5>\u95ee\u9898 4&#xff1a;static \u4e00\u5b9a\u7ebf\u7a0b\u5b89\u5168\u5417&#xff1f;<\/h5>\n<p>\u4e0d\u4e00\u5b9a\u3002 \u5982\u679c\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u4fee\u6539\u540c\u4e00\u4e2a static \u53d8\u91cf&#xff0c;\u5c31\u4f1a\u4ea7\u751f\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u3002<\/p>\n<h4>\u2705 \u6838\u5fc3\u603b\u7ed3<\/h4>\n<li>\u666e\u901a\u53d8\u91cf\u5c5e\u4e8e\u5bf9\u8c61&#xff0c;static \u53d8\u91cf\u5c5e\u4e8e\u7c7b&#xff0c;\u88ab\u6240\u6709\u5bf9\u8c61\u5171\u4eab\u3002<\/li>\n<li>static \u65b9\u6cd5\u4e0d\u4f9d\u8d56\u5bf9\u8c61&#xff0c;\u53ef\u4ee5\u901a\u8fc7\u7c7b\u540d\u76f4\u63a5\u8c03\u7528\u3002<\/li>\n<li>static \u65b9\u6cd5\u4e0d\u80fd\u76f4\u63a5\u8bbf\u95ee\u975e static \u6210\u5458\u3002<\/li>\n<li>static \u4ee3\u7801\u5757\u5728\u7c7b\u7b2c\u4e00\u6b21\u52a0\u8f7d\u65f6\u6267\u884c&#xff0c;\u5e38\u7528\u4e8e\u7c7b\u7ea7\u521d\u59cb\u5316\u3002<\/li>\n<li>\u7eaf\u5de5\u5177\u65b9\u6cd5\u53ef\u4ee5 static&#xff1b;\u5bf9\u8c61\u6709\u81ea\u5df1\u72b6\u6001\u65f6&#xff0c;\u4e0d\u8981\u4e71\u7528 static\u3002<\/li>\n<p>\u8bb0\u4f4f\u4e00\u53e5\u8bdd&#xff1a;static \u8868\u8fbe\u7684\u662f\u300c\u5c5e\u4e8e\u7c7b\u3001\u4e0d\u5c5e\u4e8e\u5bf9\u8c61\u300d\u3002  \u6bcf\u6b21\u60f3\u52a0 static&#xff0c;\u5148\u95ee\u81ea\u5df1&#xff1a;\u8fd9\u4e2a\u6570\u636e\/\u65b9\u6cd5&#xff0c;\u662f\u4e0d\u662f\u300c\u6ca1\u6709\u67d0\u4e2a\u5177\u4f53\u5bf9\u8c61\u4e5f\u5e94\u8be5\u5b58\u5728\u300d&#xff1f;\u662f \u2192 \u7528&#xff1b;\u4e0d\u662f \u2192 \u522b\u7528\u3002<\/p>\n<p>&#x1f4da;\u7cfb\u5217\u4e13\u680f&#xff1a;\u540e\u7aef\u57fa\u7840\u62fe\u5149\u96c6<br \/>\n\u672c\u7cfb\u5217\u907f\u5f00\u6559\u79d1\u4e66\u5f0f\u516b\u80a1\u8bb2\u89e3&#xff0c;\u751f\u6d3b\u5316\u6848\u4f8b\u8bb2\u89e3 Java \u5e95\u5c42\u539f\u7406&#xff0c;\u8986\u76d6\u9762\u8bd5\u3001\u751f\u4ea7\u5f00\u53d1\u9ad8\u9891\u77e5\u8bc6\u70b9\u3002<br \/>\n\u5df2\u66f4\u65b0&#xff1a;\u96c6\u5408\u5e95\u5c42\u6e90\u7801\u3001\u7ea2\u9ed1\u6811\u3001\u6cdb\u578b\u3001Java \u5f02\u5e38\u3001Integer \u7f13\u5b58\u6c60\u3001equals &amp; hashCode\u3001Spring \u4e8b\u52a1\u4e03\u5927\u9677\u9631\u3002<br \/>\n\u4e13\u680f\u6301\u7eed\u66f4\u65b0 Java \u540e\u7aef\u57fa\u7840\u3001\u6e90\u7801\u3001\u9762\u8bd5\u8e29\u5751\u5e72\u8d27&#xff0c;\u6b22\u8fce\u5173\u6ce8\u4e00\u8d77\u5b66\u4e60\u3002<br \/>\n\u5982\u6709\u7591\u95ee\u6b22\u8fce\u8bc4\u8bba\u533a\u7559\u8a00\u8ba8\u8bba\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5927\u5bb6\u597d&#xff0c;\u8fd9\u91cc\u662f\u540e\u7aef\u57fa\u7840\u62fe\u5149\u96c6\u3002<br \/>\nstatic \u8fd9\u4e2a\u5173\u952e\u5b57&#xff0c;\u51e0\u4e4e\u6bcf\u4e2a Java \u9879\u76ee\u91cc\u90fd\u80fd\u770b\u5230\u3002 \u4f46\u5f88\u591a\u4eba\u5199\u5230\u5b83\u65f6&#xff0c;\u53ea\u77e5\u9053 \u201c\u52a0\u4e86 static \u5c31\u80fd\u76f4\u63a5\u8c03\u7528\u201d&#xff0c;\u81f3\u4e8e\u4e3a\u4ec0\u4e48\u80fd\u8c03\u7528\u3001\u4ec0\u4e48\u65f6\u5019\u8be5\u7528\u3001\u4ec0\u4e48\u65f6\u5019\u4e0d\u80fd\u7528&#xff0c;\u5374\u8bf4\u4e0d\u6e05\u695a\u3002<br \/>\n\u63a5\u4e0b\u6765\u6211\u4eec\u901a\u8fc7\u7528\u300c\u73ed\u7ea7\u5b66\u751f\u300d\u628astatic \u4e00\u6b21\u6027\u641e\u900f\u5f7b\u3002<br \/>\n\u4e00\u3001\u5148\u5efa\u7acb\u4e00\u4e2a\u7c7b\u6bd4\u6a21\u578b<br \/>\n\u628a class \u60f3\u6210\u4e00\u4e2a\u73ed\u7ea7&#xff0c;static \u5c31\u662f\u8d34\u5728\u73ed\u7ea7\u516c\u544a\u680f\u4e0a\u7684\u4e1c\u897f&#xff0c;\u800c\u4e0d<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,81,98,190,176],"topic":[],"class_list":["post-114186","post","type-post","status-publish","format-standard","hentry","category-server","tag-java","tag-python","tag-spring-boot","tag-190","tag-176"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java static \u5173\u952e\u5b57\u8be6\u89e3\uff5c\u9759\u6001\u53d8\u91cf\u3001\u9759\u6001\u65b9\u6cd5\u3001\u9759\u6001\u4ee3\u7801\u5757 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/114186.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java static \u5173\u952e\u5b57\u8be6\u89e3\uff5c\u9759\u6001\u53d8\u91cf\u3001\u9759\u6001\u65b9\u6cd5\u3001\u9759\u6001\u4ee3\u7801\u5757 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u5927\u5bb6\u597d&#xff0c;\u8fd9\u91cc\u662f\u540e\u7aef\u57fa\u7840\u62fe\u5149\u96c6\u3002 static \u8fd9\u4e2a\u5173\u952e\u5b57&#xff0c;\u51e0\u4e4e\u6bcf\u4e2a Java \u9879\u76ee\u91cc\u90fd\u80fd\u770b\u5230\u3002 \u4f46\u5f88\u591a\u4eba\u5199\u5230\u5b83\u65f6&#xff0c;\u53ea\u77e5\u9053 \u201c\u52a0\u4e86 static \u5c31\u80fd\u76f4\u63a5\u8c03\u7528\u201d&#xff0c;\u81f3\u4e8e\u4e3a\u4ec0\u4e48\u80fd\u8c03\u7528\u3001\u4ec0\u4e48\u65f6\u5019\u8be5\u7528\u3001\u4ec0\u4e48\u65f6\u5019\u4e0d\u80fd\u7528&#xff0c;\u5374\u8bf4\u4e0d\u6e05\u695a\u3002 \u63a5\u4e0b\u6765\u6211\u4eec\u901a\u8fc7\u7528\u300c\u73ed\u7ea7\u5b66\u751f\u300d\u628astatic \u4e00\u6b21\u6027\u641e\u900f\u5f7b\u3002 \u4e00\u3001\u5148\u5efa\u7acb\u4e00\u4e2a\u7c7b\u6bd4\u6a21\u578b \u628a class \u60f3\u6210\u4e00\u4e2a\u73ed\u7ea7&#xff0c;static \u5c31\u662f\u8d34\u5728\u73ed\u7ea7\u516c\u544a\u680f\u4e0a\u7684\u4e1c\u897f&#xff0c;\u800c\u4e0d\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/114186.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-08T07:09:05+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/114186.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/114186.html\",\"name\":\"Java static \u5173\u952e\u5b57\u8be6\u89e3\uff5c\u9759\u6001\u53d8\u91cf\u3001\u9759\u6001\u65b9\u6cd5\u3001\u9759\u6001\u4ee3\u7801\u5757 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-10-08T07:09:05+00:00\",\"dateModified\":\"2026-10-08T07:09:05+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/114186.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/114186.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/114186.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Java static \u5173\u952e\u5b57\u8be6\u89e3\uff5c\u9759\u6001\u53d8\u91cf\u3001\u9759\u6001\u65b9\u6cd5\u3001\u9759\u6001\u4ee3\u7801\u5757\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Java static \u5173\u952e\u5b57\u8be6\u89e3\uff5c\u9759\u6001\u53d8\u91cf\u3001\u9759\u6001\u65b9\u6cd5\u3001\u9759\u6001\u4ee3\u7801\u5757 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/114186.html","og_locale":"zh_CN","og_type":"article","og_title":"Java static \u5173\u952e\u5b57\u8be6\u89e3\uff5c\u9759\u6001\u53d8\u91cf\u3001\u9759\u6001\u65b9\u6cd5\u3001\u9759\u6001\u4ee3\u7801\u5757 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u5927\u5bb6\u597d&#xff0c;\u8fd9\u91cc\u662f\u540e\u7aef\u57fa\u7840\u62fe\u5149\u96c6\u3002 static \u8fd9\u4e2a\u5173\u952e\u5b57&#xff0c;\u51e0\u4e4e\u6bcf\u4e2a Java \u9879\u76ee\u91cc\u90fd\u80fd\u770b\u5230\u3002 \u4f46\u5f88\u591a\u4eba\u5199\u5230\u5b83\u65f6&#xff0c;\u53ea\u77e5\u9053 \u201c\u52a0\u4e86 static \u5c31\u80fd\u76f4\u63a5\u8c03\u7528\u201d&#xff0c;\u81f3\u4e8e\u4e3a\u4ec0\u4e48\u80fd\u8c03\u7528\u3001\u4ec0\u4e48\u65f6\u5019\u8be5\u7528\u3001\u4ec0\u4e48\u65f6\u5019\u4e0d\u80fd\u7528&#xff0c;\u5374\u8bf4\u4e0d\u6e05\u695a\u3002 \u63a5\u4e0b\u6765\u6211\u4eec\u901a\u8fc7\u7528\u300c\u73ed\u7ea7\u5b66\u751f\u300d\u628astatic \u4e00\u6b21\u6027\u641e\u900f\u5f7b\u3002 \u4e00\u3001\u5148\u5efa\u7acb\u4e00\u4e2a\u7c7b\u6bd4\u6a21\u578b \u628a class \u60f3\u6210\u4e00\u4e2a\u73ed\u7ea7&#xff0c;static \u5c31\u662f\u8d34\u5728\u73ed\u7ea7\u516c\u544a\u680f\u4e0a\u7684\u4e1c\u897f&#xff0c;\u800c\u4e0d","og_url":"https:\/\/www.wsisp.com\/helps\/114186.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-10-08T07:09:05+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"2 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/114186.html","url":"https:\/\/www.wsisp.com\/helps\/114186.html","name":"Java static \u5173\u952e\u5b57\u8be6\u89e3\uff5c\u9759\u6001\u53d8\u91cf\u3001\u9759\u6001\u65b9\u6cd5\u3001\u9759\u6001\u4ee3\u7801\u5757 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-10-08T07:09:05+00:00","dateModified":"2026-10-08T07:09:05+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/114186.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/114186.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/114186.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"Java static \u5173\u952e\u5b57\u8be6\u89e3\uff5c\u9759\u6001\u53d8\u91cf\u3001\u9759\u6001\u65b9\u6cd5\u3001\u9759\u6001\u4ee3\u7801\u5757"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/114186","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=114186"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/114186\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=114186"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=114186"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=114186"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=114186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}