{"id":76460,"date":"2026-02-22T14:49:25","date_gmt":"2026-02-22T06:49:25","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/76460.html"},"modified":"2026-02-22T14:49:25","modified_gmt":"2026-02-22T06:49:25","slug":"java%e9%9b%86%e5%90%88%ef%bc%9a%e6%b3%9b%e5%9e%8bset%e6%95%b0%e6%8d%ae%e7%bb%93%e6%9e%84%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/76460.html","title":{"rendered":"Java\u96c6\u5408\uff1a\u6cdb\u578b&amp;Set&amp;\u6570\u636e\u7ed3\u6784\u8be6\u89e3"},"content":{"rendered":"<p id=\"main-toc\">\u76ee\u5f55<\/p>\n<p id=\"-toc\" style=\"margin-left:40px\">\n<p id=\"1.%E6%B3%9B%E5%9E%8B-toc\" style=\"margin-left:40px\">1.\u6cdb\u578b<\/p>\n<p id=\"1.1%E6%B3%9B%E5%9E%8B%E6%A6%82%E8%BF%B0-toc\" style=\"margin-left:80px\">1.1\u6cdb\u578b\u6982\u8ff0<\/p>\n<p id=\"2.Set%E9%9B%86%E5%90%88-toc\" style=\"margin-left:40px\">2.Set\u96c6\u5408<\/p>\n<p id=\"2.1Set%E9%9B%86%E5%90%88%E6%A6%82%E8%BF%B0%E5%92%8C%E7%89%B9%E7%82%B9%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91-toc\" style=\"margin-left:80px\">2.1Set\u96c6\u5408\u6982\u8ff0\u548c\u7279\u70b9\u3010\u5e94\u7528\u3011<\/p>\n<p id=\"2.2Set%E9%9B%86%E5%90%88%E7%9A%84%E4%BD%BF%E7%94%A8%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91-toc\" style=\"margin-left:80px\">2.2Set\u96c6\u5408\u7684\u4f7f\u7528\u3010\u5e94\u7528\u3011<\/p>\n<p id=\"3.TreeSet%E9%9B%86%E5%90%88-toc\" style=\"margin-left:40px\">3.TreeSet\u96c6\u5408<\/p>\n<p id=\"3.1TreeSet%E9%9B%86%E5%90%88%E6%A6%82%E8%BF%B0%E5%92%8C%E7%89%B9%E7%82%B9%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91-toc\" style=\"margin-left:80px\">3.1TreeSet\u96c6\u5408\u6982\u8ff0\u548c\u7279\u70b9\u3010\u5e94\u7528\u3011<\/p>\n<p id=\"3.2TreeSet%E9%9B%86%E5%90%88%E5%9F%BA%E6%9C%AC%E4%BD%BF%E7%94%A8%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91-toc\" style=\"margin-left:80px\">3.2TreeSet\u96c6\u5408\u57fa\u672c\u4f7f\u7528\u3010\u5e94\u7528\u3011<\/p>\n<p id=\"3.3%E8%87%AA%E7%84%B6%E6%8E%92%E5%BA%8FComparable%E7%9A%84%E4%BD%BF%E7%94%A8%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91-toc\" style=\"margin-left:80px\">3.3\u81ea\u7136\u6392\u5e8fComparable\u7684\u4f7f\u7528\u3010\u5e94\u7528\u3011<\/p>\n<p id=\"3.4%E6%AF%94%E8%BE%83%E5%99%A8%E6%8E%92%E5%BA%8FComparator%E7%9A%84%E4%BD%BF%E7%94%A8%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91-toc\" style=\"margin-left:80px\">3.4\u6bd4\u8f83\u5668\u6392\u5e8fComparator\u7684\u4f7f\u7528\u3010\u5e94\u7528\u3011<\/p>\n<p id=\"3.5%E4%B8%A4%E7%A7%8D%E6%AF%94%E8%BE%83%E6%96%B9%E5%BC%8F%E6%80%BB%E7%BB%93%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91-toc\" style=\"margin-left:80px\">3.5\u4e24\u79cd\u6bd4\u8f83\u65b9\u5f0f\u603b\u7ed3\u3010\u7406\u89e3\u3011<\/p>\n<p id=\"4.%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84-toc\" style=\"margin-left:40px\">4.\u6570\u636e\u7ed3\u6784<\/p>\n<p id=\"4.1%E4%BA%8C%E5%8F%89%E6%A0%91%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91-toc\" style=\"margin-left:80px\">4.1\u4e8c\u53c9\u6811\u3010\u7406\u89e3\u3011<\/p>\n<p id=\"4.2%E4%BA%8C%E5%8F%89%E6%9F%A5%E6%89%BE%E6%A0%91%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91-toc\" style=\"margin-left:80px\">4.2\u4e8c\u53c9\u67e5\u627e\u6811\u3010\u7406\u89e3\u3011<\/p>\n<p id=\"4.3%E5%B9%B3%E8%A1%A1%E4%BA%8C%E5%8F%89%E6%A0%91%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91-toc\" style=\"margin-left:80px\">4.3\u5e73\u8861\u4e8c\u53c9\u6811\u3010\u7406\u89e3\u3011<\/p>\n<p id=\"4.3%E7%BA%A2%E9%BB%91%E6%A0%91%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91-toc\" style=\"margin-left:80px\">4.3\u7ea2\u9ed1\u6811\u3010\u7406\u89e3\u3011<\/p>\n<p id=\"5.1HashSet%E9%9B%86%E5%90%88%E6%A6%82%E8%BF%B0%E5%92%8C%E7%89%B9%E7%82%B9%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91-toc\" style=\"margin-left:80px\">5.1HashSet\u96c6\u5408\u6982\u8ff0\u548c\u7279\u70b9\u3010\u5e94\u7528\u3011<\/p>\n<p id=\"5.2HashSet%E9%9B%86%E5%90%88%E7%9A%84%E5%9F%BA%E6%9C%AC%E5%BA%94%E7%94%A8%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91-toc\" style=\"margin-left:80px\">5.2HashSet\u96c6\u5408\u7684\u57fa\u672c\u5e94\u7528\u3010\u5e94\u7528\u3011<\/p>\n<p id=\"5.3%E5%93%88%E5%B8%8C%E5%80%BC%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91-toc\" style=\"margin-left:80px\">5.3\u54c8\u5e0c\u503c\u3010\u7406\u89e3\u3011<\/p>\n<p id=\"5.4%E5%93%88%E5%B8%8C%E8%A1%A8%E7%BB%93%E6%9E%84%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91-toc\" style=\"margin-left:80px\">5.4\u54c8\u5e0c\u8868\u7ed3\u6784\u3010\u7406\u89e3\u3011<\/p>\n<p id=\"5.5HashSet%E9%9B%86%E5%90%88%E5%AD%98%E5%82%A8%E5%AD%A6%E7%94%9F%E5%AF%B9%E8%B1%A1%E5%B9%B6%E9%81%8D%E5%8E%86%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91-toc\" style=\"margin-left:80px\">5.5HashSet\u96c6\u5408\u5b58\u50a8\u5b66\u751f\u5bf9\u8c61\u5e76\u904d\u5386\u3010\u5e94\u7528\u3011<\/p>\n<hr \/>\n<h3 id=\"1.%E6%B3%9B%E5%9E%8B\">1.\u6cdb\u578b<\/h3>\n<h4 id=\"1.1%E6%B3%9B%E5%9E%8B%E6%A6%82%E8%BF%B0\">1.1\u6cdb\u578b\u6982\u8ff0<\/h4>\n<ul>\n<li>\n<p>\u6cdb\u578b\u7684\u4ecb\u7ecd<\/p>\n<p>\u6cdb\u578b\u662fJDK5\u4e2d\u5f15\u5165\u7684\u7279\u6027&#xff0c;\u5b83\u63d0\u4f9b\u4e86\u7f16\u8bd1\u65f6\u7c7b\u578b\u5b89\u5168\u68c0\u6d4b\u673a\u5236<\/p>\n<\/li>\n<li>\n<p>\u6cdb\u578b\u7684\u597d\u5904<\/p>\n<li>\n<p>\u628a\u8fd0\u884c\u65f6\u671f\u7684\u95ee\u9898\u63d0\u524d\u5230\u4e86\u7f16\u8bd1\u671f\u95f4<\/p>\n<\/li>\n<li>\n<p>\u907f\u514d\u4e86\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362<\/p>\n<\/li>\n<\/li>\n<li>\n<p>\u6cdb\u578b\u7684\u5b9a\u4e49\u683c\u5f0f<\/p>\n<ul>\n<li>\n<p>&lt;\u7c7b\u578b&gt;: \u6307\u5b9a\u4e00\u79cd\u7c7b\u578b\u7684\u683c\u5f0f.\u5c16\u62ec\u53f7\u91cc\u9762\u53ef\u4ee5\u4efb\u610f\u4e66\u5199,\u4e00\u822c\u53ea\u5199\u4e00\u4e2a\u5b57\u6bcd.\u4f8b\u5982: &lt;E&gt; &lt;T&gt;<\/p>\n<\/li>\n<li>\n<p>&lt;\u7c7b\u578b1,\u7c7b\u578b2\u2026&gt;: \u6307\u5b9a\u591a\u79cd\u7c7b\u578b\u7684\u683c\u5f0f,\u591a\u79cd\u7c7b\u578b\u4e4b\u95f4\u7528\u9017\u53f7\u9694\u5f00.\u4f8b\u5982: &lt;E,T&gt; &lt;K,V&gt;<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 id=\"2.Set%E9%9B%86%E5%90%88\">2.Set\u96c6\u5408<\/h3>\n<h4 id=\"2.1Set%E9%9B%86%E5%90%88%E6%A6%82%E8%BF%B0%E5%92%8C%E7%89%B9%E7%82%B9%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91\">2.1Set\u96c6\u5408\u6982\u8ff0\u548c\u7279\u70b9\u3010\u5e94\u7528\u3011<\/h4>\n<ul>\n<li>\n<p>\u4e0d\u53ef\u4ee5\u5b58\u50a8\u91cd\u590d\u5143\u7d20<\/p>\n<\/li>\n<li>\n<p>\u6ca1\u6709\u7d22\u5f15,\u4e0d\u80fd\u4f7f\u7528\u666e\u901afor\u5faa\u73af\u904d\u5386<\/p>\n<\/li>\n<\/ul>\n<h4 id=\"2.2Set%E9%9B%86%E5%90%88%E7%9A%84%E4%BD%BF%E7%94%A8%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91\">2.2Set\u96c6\u5408\u7684\u4f7f\u7528\u3010\u5e94\u7528\u3011<\/h4>\n<p>\u5b58\u50a8\u5b57\u7b26\u4e32\u5e76\u904d\u5386<\/p>\n<p>public class MySet1 {<br \/>\n \u00a0 \u00a0public static void main(String[] args) {<br \/>\n \u00a0 \u00a0    \/\/\u521b\u5efa\u96c6\u5408\u5bf9\u8c61<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0Set&lt;String&gt; set &#061; new TreeSet&lt;&gt;();<br \/>\n \u00a0 \u00a0    \/\/\u6dfb\u52a0\u5143\u7d20<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0set.add(&#034;ccc&#034;);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0set.add(&#034;aaa&#034;);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0set.add(&#034;aaa&#034;);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0set.add(&#034;bbb&#034;);<br \/>\n\u200b<br \/>\n\/\/ \u00a0 \u00a0 \u00a0  for (int i &#061; 0; i &lt; set.size(); i&#043;&#043;) {<br \/>\n\/\/ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  \/\/Set\u96c6\u5408\u662f\u6ca1\u6709\u7d22\u5f15\u7684&#xff0c;\u6240\u4ee5\u4e0d\u80fd\u4f7f\u7528\u901a\u8fc7\u7d22\u5f15\u83b7\u53d6\u5143\u7d20\u7684\u65b9\u6cd5<br \/>\n\/\/ \u00a0 \u00a0 \u00a0  }<br \/>\n \u00a0 \u00a0 \u00a0<br \/>\n \u00a0 \u00a0    \/\/\u904d\u5386\u96c6\u5408<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0Iterator&lt;String&gt; it &#061; set.iterator();<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0while (it.hasNext()){<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0String s &#061; it.next();<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0System.out.println(s);<br \/>\n \u00a0 \u00a0 \u00a0  }<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0System.out.println(&#034;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;&#034;);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0for (String s : set) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0System.out.println(s);<br \/>\n \u00a0 \u00a0 \u00a0  }<br \/>\n \u00a0  }<br \/>\n} <\/p>\n<h3 id=\"3.TreeSet%E9%9B%86%E5%90%88\">3.TreeSet\u96c6\u5408<\/h3>\n<h4 id=\"3.1TreeSet%E9%9B%86%E5%90%88%E6%A6%82%E8%BF%B0%E5%92%8C%E7%89%B9%E7%82%B9%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91\">3.1TreeSet\u96c6\u5408\u6982\u8ff0\u548c\u7279\u70b9\u3010\u5e94\u7528\u3011<\/h4>\n<ul>\n<li>\n<p>\u4e0d\u53ef\u4ee5\u5b58\u50a8\u91cd\u590d\u5143\u7d20<\/p>\n<\/li>\n<li>\n<p>\u6ca1\u6709\u7d22\u5f15<\/p>\n<\/li>\n<li>\n<p>\u53ef\u4ee5\u5c06\u5143\u7d20\u6309\u7167\u89c4\u5219\u8fdb\u884c\u6392\u5e8f<\/p>\n<ul>\n<li>\n<p>TreeSet()&#xff1a;\u6839\u636e\u5176\u5143\u7d20\u7684\u81ea\u7136\u6392\u5e8f\u8fdb\u884c\u6392\u5e8f<\/p>\n<\/li>\n<li>\n<p>TreeSet(Comparator comparator) &#xff1a;\u6839\u636e\u6307\u5b9a\u7684\u6bd4\u8f83\u5668\u8fdb\u884c\u6392\u5e8f<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4 id=\"3.2TreeSet%E9%9B%86%E5%90%88%E5%9F%BA%E6%9C%AC%E4%BD%BF%E7%94%A8%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91\">3.2TreeSet\u96c6\u5408\u57fa\u672c\u4f7f\u7528\u3010\u5e94\u7528\u3011<\/h4>\n<p>\u5b58\u50a8Integer\u7c7b\u578b\u7684\u6574\u6570\u5e76\u904d\u5386<\/p>\n<p>public class TreeSetDemo01 {<br \/>\n \u00a0 \u00a0public static void main(String[] args) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0\/\/\u521b\u5efa\u96c6\u5408\u5bf9\u8c61<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0TreeSet&lt;Integer&gt; ts &#061; new TreeSet&lt;Integer&gt;();<br \/>\n\u200b<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0\/\/\u6dfb\u52a0\u5143\u7d20<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(10);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(40);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(30);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(50);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(20);<br \/>\n\u200b<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(30);<br \/>\n\u200b<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0\/\/\u904d\u5386\u96c6\u5408<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0for(Integer i : ts) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0System.out.println(i);<br \/>\n \u00a0 \u00a0 \u00a0  }<br \/>\n \u00a0  }<br \/>\n} <\/p>\n<h4 id=\"3.3%E8%87%AA%E7%84%B6%E6%8E%92%E5%BA%8FComparable%E7%9A%84%E4%BD%BF%E7%94%A8%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91\">3.3\u81ea\u7136\u6392\u5e8fComparable\u7684\u4f7f\u7528\u3010\u5e94\u7528\u3011<\/h4>\n<ul>\n<li>\n<p>\u6848\u4f8b\u9700\u6c42<\/p>\n<ul>\n<li>\n<p>\u5b58\u50a8\u5b66\u751f\u5bf9\u8c61\u5e76\u904d\u5386&#xff0c;\u521b\u5efaTreeSet\u96c6\u5408\u4f7f\u7528\u65e0\u53c2\u6784\u9020\u65b9\u6cd5<\/p>\n<\/li>\n<li>\n<p>\u8981\u6c42&#xff1a;\u6309\u7167\u5e74\u9f84\u4ece\u5c0f\u5230\u5927\u6392\u5e8f&#xff0c;\u5e74\u9f84\u76f8\u540c\u65f6&#xff0c;\u6309\u7167\u59d3\u540d\u7684\u5b57\u6bcd\u987a\u5e8f\u6392\u5e8f<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5b9e\u73b0\u6b65\u9aa4<\/p>\n<li>\n<p>\u4f7f\u7528\u7a7a\u53c2\u6784\u9020\u521b\u5efaTreeSet\u96c6\u5408<\/p>\n<ul>\n<li>\n<p>\u7528TreeSet\u96c6\u5408\u5b58\u50a8\u81ea\u5b9a\u4e49\u5bf9\u8c61&#xff0c;\u65e0\u53c2\u6784\u9020\u65b9\u6cd5\u4f7f\u7528\u7684\u662f\u81ea\u7136\u6392\u5e8f\u5bf9\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u7684<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u81ea\u5b9a\u4e49\u7684Student\u7c7b\u5b9e\u73b0Comparable\u63a5\u53e3<\/p>\n<ul>\n<li>\n<p>\u81ea\u7136\u6392\u5e8f&#xff0c;\u5c31\u662f\u8ba9\u5143\u7d20\u6240\u5c5e\u7684\u7c7b\u5b9e\u73b0Comparable\u63a5\u53e3&#xff0c;\u91cd\u5199compareTo(T o)\u65b9\u6cd5<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u91cd\u5199\u63a5\u53e3\u4e2d\u7684compareTo\u65b9\u6cd5<\/p>\n<ul>\n<li>\n<p>\u91cd\u5199\u65b9\u6cd5\u65f6&#xff0c;\u4e00\u5b9a\u8981\u6ce8\u610f\u6392\u5e8f\u89c4\u5219\u5fc5\u987b\u6309\u7167\u8981\u6c42\u7684\u4e3b\u8981\u6761\u4ef6\u548c\u6b21\u8981\u6761\u4ef6\u6765\u5199<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/li>\n<li>\n<p>\u4ee3\u7801\u5b9e\u73b0<\/p>\n<p>\u5b66\u751f\u7c7b<\/p>\n<p> public class Student implements Comparable&lt;Student&gt;{<br \/>\n \u00a0 \u00a0private String name;<br \/>\n \u00a0 \u00a0private int age;<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public Student() {<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public Student(String name, int age) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0this.name &#061; name;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0this.age &#061; age;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public String getName() {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0return name;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public void setName(String name) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0this.name &#061; name;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public int getAge() {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0return age;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public void setAge(int age) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0this.age &#061; age;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0&#064;Override<br \/>\n \u00a0 \u00a0public String toString() {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0return &#034;Student{&#034; &#043;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&#034;name&#061;&#039;&#034; &#043; name &#043; &#039;\\\\&#039;&#039; &#043;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&#034;, age&#061;&#034; &#043; age &#043;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&#039;}&#039;;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0&#064;Override<br \/>\n \u00a0 \u00a0public int compareTo(Student o) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0\/\/\u6309\u7167\u5bf9\u8c61\u7684\u5e74\u9f84\u8fdb\u884c\u6392\u5e8f<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0\/\/\u4e3b\u8981\u5224\u65ad\u6761\u4ef6: \u6309\u7167\u5e74\u9f84\u4ece\u5c0f\u5230\u5927\u6392\u5e8f<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0int result &#061; this.age &#8211; o.age;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0\/\/\u6b21\u8981\u5224\u65ad\u6761\u4ef6: \u5e74\u9f84\u76f8\u540c\u65f6&#xff0c;\u6309\u7167\u59d3\u540d\u7684\u5b57\u6bcd\u987a\u5e8f\u6392\u5e8f<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0result &#061; result &#061;&#061; 0 ? this.name.compareTo(o.getName()) : result;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0return result;<br \/>\n \u00a0  }<br \/>\n} <\/p>\n<p>\u6d4b\u8bd5\u7c7b<\/p>\n<p> public class MyTreeSet2 {<br \/>\n \u00a0 \u00a0public static void main(String[] args) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0\/\/\u521b\u5efa\u96c6\u5408\u5bf9\u8c61<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0TreeSet&lt;Student&gt; ts &#061; new TreeSet&lt;&gt;();<br \/>\n     \u00a0 \u00a0\/\/\u521b\u5efa\u5b66\u751f\u5bf9\u8c61<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0Student s1 &#061; new Student(&#034;zhangsan&#034;,28);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0Student s2 &#061; new Student(&#034;lisi&#034;,27);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0Student s3 &#061; new Student(&#034;wangwu&#034;,29);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0Student s4 &#061; new Student(&#034;zhaoliu&#034;,28);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0Student s5 &#061; new Student(&#034;qianqi&#034;,30);<br \/>\n        \/\/\u628a\u5b66\u751f\u6dfb\u52a0\u5230\u96c6\u5408<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(s1);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(s2);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(s3);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(s4);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(s5);<br \/>\n        \/\/\u904d\u5386\u96c6\u5408<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0for (Student student : ts) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0System.out.println(student);<br \/>\n \u00a0 \u00a0 \u00a0  }<br \/>\n \u00a0  }<br \/>\n} <\/li>\n<\/ul>\n<h4 id=\"3.4%E6%AF%94%E8%BE%83%E5%99%A8%E6%8E%92%E5%BA%8FComparator%E7%9A%84%E4%BD%BF%E7%94%A8%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91\">3.4\u6bd4\u8f83\u5668\u6392\u5e8fComparator\u7684\u4f7f\u7528\u3010\u5e94\u7528\u3011<\/h4>\n<ul>\n<li>\n<p>\u6848\u4f8b\u9700\u6c42<\/p>\n<ul>\n<li>\n<p>\u5b58\u50a8\u8001\u5e08\u5bf9\u8c61\u5e76\u904d\u5386&#xff0c;\u521b\u5efaTreeSet\u96c6\u5408\u4f7f\u7528\u5e26\u53c2\u6784\u9020\u65b9\u6cd5<\/p>\n<\/li>\n<li>\n<p>\u8981\u6c42&#xff1a;\u6309\u7167\u5e74\u9f84\u4ece\u5c0f\u5230\u5927\u6392\u5e8f&#xff0c;\u5e74\u9f84\u76f8\u540c\u65f6&#xff0c;\u6309\u7167\u59d3\u540d\u7684\u5b57\u6bcd\u987a\u5e8f\u6392\u5e8f<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5b9e\u73b0\u6b65\u9aa4<\/p>\n<ul>\n<li>\n<p>\u7528TreeSet\u96c6\u5408\u5b58\u50a8\u81ea\u5b9a\u4e49\u5bf9\u8c61&#xff0c;\u5e26\u53c2\u6784\u9020\u65b9\u6cd5\u4f7f\u7528\u7684\u662f\u6bd4\u8f83\u5668\u6392\u5e8f\u5bf9\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u7684<\/p>\n<\/li>\n<li>\n<p>\u6bd4\u8f83\u5668\u6392\u5e8f&#xff0c;\u5c31\u662f\u8ba9\u96c6\u5408\u6784\u9020\u65b9\u6cd5\u63a5\u6536Comparator\u7684\u5b9e\u73b0\u7c7b\u5bf9\u8c61&#xff0c;\u91cd\u5199compare(T o1,T o2)\u65b9\u6cd5<\/p>\n<\/li>\n<li>\n<p>\u91cd\u5199\u65b9\u6cd5\u65f6&#xff0c;\u4e00\u5b9a\u8981\u6ce8\u610f\u6392\u5e8f\u89c4\u5219\u5fc5\u987b\u6309\u7167\u8981\u6c42\u7684\u4e3b\u8981\u6761\u4ef6\u548c\u6b21\u8981\u6761\u4ef6\u6765\u5199<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4ee3\u7801\u5b9e\u73b0<\/p>\n<p>\u8001\u5e08\u7c7b<\/p>\n<p> public class Teacher {<br \/>\n \u00a0 \u00a0private String name;<br \/>\n \u00a0 \u00a0private int age;<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public Teacher() {<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public Teacher(String name, int age) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0this.name &#061; name;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0this.age &#061; age;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public String getName() {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0return name;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public void setName(String name) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0this.name &#061; name;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public int getAge() {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0return age;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public void setAge(int age) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0this.age &#061; age;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0&#064;Override<br \/>\n \u00a0 \u00a0public String toString() {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0return &#034;Teacher{&#034; &#043;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&#034;name&#061;&#039;&#034; &#043; name &#043; &#039;\\\\&#039;&#039; &#043;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&#034;, age&#061;&#034; &#043; age &#043;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&#039;}&#039;;<br \/>\n \u00a0  }<br \/>\n} <\/p>\n<p>\u6d4b\u8bd5\u7c7b<\/p>\n<p> public class MyTreeSet4 {<br \/>\n \u00a0 \u00a0public static void main(String[] args) {<br \/>\n \u00a0 \u00a0    \/\/\u521b\u5efa\u96c6\u5408\u5bf9\u8c61<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0TreeSet&lt;Teacher&gt; ts &#061; new TreeSet&lt;&gt;(new Comparator&lt;Teacher&gt;() {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&#064;Override<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0public int compare(Teacher o1, Teacher o2) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/o1\u8868\u793a\u73b0\u5728\u8981\u5b58\u5165\u7684\u90a3\u4e2a\u5143\u7d20<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/o2\u8868\u793a\u5df2\u7ecf\u5b58\u5165\u5230\u96c6\u5408\u4e2d\u7684\u5143\u7d20<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u4e3b\u8981\u6761\u4ef6<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0int result &#061; o1.getAge() &#8211; o2.getAge();<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\/\/\u6b21\u8981\u6761\u4ef6<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0result &#061; result &#061;&#061; 0 ? o1.getName().compareTo(o2.getName()) : result;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0return result;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  }<br \/>\n \u00a0 \u00a0 \u00a0  });<br \/>\n        \/\/\u521b\u5efa\u8001\u5e08\u5bf9\u8c61<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0Teacher t1 &#061; new Teacher(&#034;zhangsan&#034;,23);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0Teacher t2 &#061; new Teacher(&#034;lisi&#034;,22);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0Teacher t3 &#061; new Teacher(&#034;wangwu&#034;,24);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0Teacher t4 &#061; new Teacher(&#034;zhaoliu&#034;,24);<br \/>\n        \/\/\u628a\u8001\u5e08\u6dfb\u52a0\u5230\u96c6\u5408<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(t1);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(t2);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(t3);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0ts.add(t4);<br \/>\n        \/\/\u904d\u5386\u96c6\u5408<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0for (Teacher teacher : ts) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0System.out.println(teacher);<br \/>\n \u00a0 \u00a0 \u00a0  }<br \/>\n \u00a0  }<br \/>\n} <\/li>\n<\/ul>\n<h4 id=\"3.5%E4%B8%A4%E7%A7%8D%E6%AF%94%E8%BE%83%E6%96%B9%E5%BC%8F%E6%80%BB%E7%BB%93%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91\">3.5\u4e24\u79cd\u6bd4\u8f83\u65b9\u5f0f\u603b\u7ed3\u3010\u7406\u89e3\u3011<\/h4>\n<ul>\n<li>\n<p>\u4e24\u79cd\u6bd4\u8f83\u65b9\u5f0f\u5c0f\u7ed3<\/p>\n<ul>\n<li>\n<p>\u81ea\u7136\u6392\u5e8f: \u81ea\u5b9a\u4e49\u7c7b\u5b9e\u73b0Comparable\u63a5\u53e3,\u91cd\u5199compareTo\u65b9\u6cd5,\u6839\u636e\u8fd4\u56de\u503c\u8fdb\u884c\u6392\u5e8f<\/p>\n<\/li>\n<li>\n<p>\u6bd4\u8f83\u5668\u6392\u5e8f: \u521b\u5efaTreeSet\u5bf9\u8c61\u7684\u65f6\u5019\u4f20\u9012Comparator\u7684\u5b9e\u73b0\u7c7b\u5bf9\u8c61,\u91cd\u5199compare\u65b9\u6cd5,\u6839\u636e\u8fd4\u56de\u503c\u8fdb\u884c\u6392\u5e8f<\/p>\n<\/li>\n<li>\n<p>\u5728\u4f7f\u7528\u7684\u65f6\u5019,\u9ed8\u8ba4\u4f7f\u7528\u81ea\u7136\u6392\u5e8f,\u5f53\u81ea\u7136\u6392\u5e8f\u4e0d\u6ee1\u8db3\u73b0\u5728\u7684\u9700\u6c42\u65f6,\u5fc5\u987b\u4f7f\u7528\u6bd4\u8f83\u5668\u6392\u5e8f<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4e24\u79cd\u65b9\u5f0f\u4e2d\u5173\u4e8e\u8fd4\u56de\u503c\u7684\u89c4\u5219<\/p>\n<ul>\n<li>\n<p>\u5982\u679c\u8fd4\u56de\u503c\u4e3a\u8d1f\u6570&#xff0c;\u8868\u793a\u5f53\u524d\u5b58\u5165\u7684\u5143\u7d20\u662f\u8f83\u5c0f\u503c&#xff0c;\u5b58\u5de6\u8fb9<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u8fd4\u56de\u503c\u4e3a0&#xff0c;\u8868\u793a\u5f53\u524d\u5b58\u5165\u7684\u5143\u7d20\u8ddf\u96c6\u5408\u4e2d\u5143\u7d20\u91cd\u590d\u4e86&#xff0c;\u4e0d\u5b58<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u8fd4\u56de\u503c\u4e3a\u6b63\u6570&#xff0c;\u8868\u793a\u5f53\u524d\u5b58\u5165\u7684\u5143\u7d20\u662f\u8f83\u5927\u503c&#xff0c;\u5b58\u53f3\u8fb9<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 id=\"4.%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84\">4.\u6570\u636e\u7ed3\u6784<\/h3>\n<h4 id=\"4.1%E4%BA%8C%E5%8F%89%E6%A0%91%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91\">4.1\u4e8c\u53c9\u6811\u3010\u7406\u89e3\u3011<\/h4>\n<ul>\n<li>\n<p>\u4e8c\u53c9\u6811\u7684\u7279\u70b9<\/p>\n<ul>\n<li>\n<p>\u4e8c\u53c9\u6811\u4e2d,\u4efb\u610f\u4e00\u4e2a\u8282\u70b9\u7684\u5ea6\u8981\u5c0f\u4e8e\u7b49\u4e8e2<\/p>\n<ul>\n<li>\n<p>\u8282\u70b9: \u5728\u6811\u7ed3\u6784\u4e2d,\u6bcf\u4e00\u4e2a\u5143\u7d20\u79f0\u4e4b\u4e3a\u8282\u70b9<\/p>\n<\/li>\n<li>\n<p>\u5ea6: \u6bcf\u4e00\u4e2a\u8282\u70b9\u7684\u5b50\u8282\u70b9\u6570\u91cf\u79f0\u4e4b\u4e3a\u5ea6<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4e8c\u53c9\u6811\u7ed3\u6784\u56fe<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"500\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064919-699aa6ef4d3b3.png\" width=\"1221\" \/><\/li>\n<\/ul>\n<h4 id=\"4.2%E4%BA%8C%E5%8F%89%E6%9F%A5%E6%89%BE%E6%A0%91%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91\">4.2\u4e8c\u53c9\u67e5\u627e\u6811\u3010\u7406\u89e3\u3011<\/h4>\n<ul>\n<li>\n<p>\u4e8c\u53c9\u67e5\u627e\u6811\u7684\u7279\u70b9<\/p>\n<ul>\n<li>\n<p>\u4e8c\u53c9\u67e5\u627e\u6811,\u53c8\u79f0\u4e8c\u53c9\u6392\u5e8f\u6811\u6216\u8005\u4e8c\u53c9\u641c\u7d22\u6811<\/p>\n<\/li>\n<li>\n<p>\u6bcf\u4e00\u4e2a\u8282\u70b9\u4e0a\u6700\u591a\u6709\u4e24\u4e2a\u5b50\u8282\u70b9<\/p>\n<\/li>\n<li>\n<p>\u5de6\u5b50\u6811\u4e0a\u6240\u6709\u8282\u70b9\u7684\u503c\u90fd\u5c0f\u4e8e\u6839\u8282\u70b9\u7684\u503c<\/p>\n<\/li>\n<li>\n<p>\u53f3\u5b50\u6811\u4e0a\u6240\u6709\u8282\u70b9\u7684\u503c\u90fd\u5927\u4e8e\u6839\u8282\u70b9\u7684\u503c<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4e8c\u53c9\u67e5\u627e\u6811\u7ed3\u6784\u56fe<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"553\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064919-699aa6efdb23a.png\" width=\"1382\" \/><\/li>\n<li>\n<p>\u4e8c\u53c9\u67e5\u627e\u6811\u548c\u4e8c\u53c9\u6811\u5bf9\u6bd4\u7ed3\u6784\u56fe<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"485\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064920-699aa6f042ec4.png\" width=\"1378\" \/><\/li>\n<li>\n<p>\u4e8c\u53c9\u67e5\u627e\u6811\u6dfb\u52a0\u8282\u70b9\u89c4\u5219<\/p>\n<ul>\n<li>\n<p>\u5c0f\u7684\u5b58\u5de6\u8fb9<\/p>\n<\/li>\n<li>\n<p>\u5927\u7684\u5b58\u53f3\u8fb9<\/p>\n<\/li>\n<li>\n<p>\u4e00\u6837\u7684\u4e0d\u5b58<\/p>\n<\/li>\n<\/ul>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"505\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064920-699aa6f0a667f.png\" width=\"1142\" \/><\/li>\n<\/ul>\n<h4 id=\"4.3%E5%B9%B3%E8%A1%A1%E4%BA%8C%E5%8F%89%E6%A0%91%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91\">4.3\u5e73\u8861\u4e8c\u53c9\u6811\u3010\u7406\u89e3\u3011<\/h4>\n<ul>\n<li>\n<p>\u5e73\u8861\u4e8c\u53c9\u6811\u7684\u7279\u70b9<\/p>\n<ul>\n<li>\n<p>\u4e8c\u53c9\u6811\u5de6\u53f3\u4e24\u4e2a\u5b50\u6811\u7684\u9ad8\u5ea6\u5dee\u4e0d\u8d85\u8fc71<\/p>\n<\/li>\n<li>\n<p>\u4efb\u610f\u8282\u70b9\u7684\u5de6\u53f3\u4e24\u4e2a\u5b50\u6811\u90fd\u662f\u4e00\u9897\u5e73\u8861\u4e8c\u53c9\u6811<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5e73\u8861\u4e8c\u53c9\u6811\u65cb\u8f6c<\/p>\n<ul>\n<li>\n<p>\u65cb\u8f6c\u89e6\u53d1\u65f6\u673a<\/p>\n<ul>\n<li>\n<p>\u5f53\u6dfb\u52a0\u4e00\u4e2a\u8282\u70b9\u4e4b\u540e,\u8be5\u6811\u4e0d\u518d\u662f\u4e00\u9897\u5e73\u8861\u4e8c\u53c9\u6811<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5de6\u65cb<\/p>\n<ul>\n<li>\n<p>\u5c31\u662f\u5c06\u6839\u8282\u70b9\u7684\u53f3\u4fa7\u5f80\u5de6\u62c9,\u539f\u5148\u7684\u53f3\u5b50\u8282\u70b9\u53d8\u6210\u65b0\u7684\u7236\u8282\u70b9,\u5e76\u628a\u591a\u4f59\u7684\u5de6\u5b50\u8282\u70b9\u51fa\u8ba9,\u7ed9\u5df2\u7ecf\u964d\u7ea7\u7684\u6839\u8282\u70b9\u5f53\u53f3\u5b50\u8282\u70b9<\/p>\n<\/li>\n<\/ul>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"483\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064921-699aa6f10d532.png\" width=\"1252\" \/><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"570\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064921-699aa6f170119.png\" width=\"1412\" \/><\/li>\n<li>\n<p>\u53f3\u65cb<\/p>\n<ul>\n<li>\n<p>\u5c31\u662f\u5c06\u6839\u8282\u70b9\u7684\u5de6\u4fa7\u5f80\u53f3\u62c9,\u5de6\u5b50\u8282\u70b9\u53d8\u6210\u4e86\u65b0\u7684\u7236\u8282\u70b9,\u5e76\u628a\u591a\u4f59\u7684\u53f3\u5b50\u8282\u70b9\u51fa\u8ba9,\u7ed9\u5df2\u7ecf\u964d\u7ea7\u6839\u8282\u70b9\u5f53\u5de6\u5b50\u8282\u70b9<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"490\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064921-699aa6f1c48b2.png\" width=\"1153\" \/><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"535\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064922-699aa6f20a859.png\" width=\"1273\" \/><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5e73\u8861\u4e8c\u53c9\u6811\u548c\u4e8c\u53c9\u67e5\u627e\u6811\u5bf9\u6bd4\u7ed3\u6784\u56fe<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"437\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064922-699aa6f248fc1.png\" width=\"1363\" \/><\/li>\n<li>\n<p>\u5e73\u8861\u4e8c\u53c9\u6811\u65cb\u8f6c\u7684\u56db\u79cd\u60c5\u51b5<\/p>\n<ul>\n<li>\n<p>\u5de6\u5de6<\/p>\n<ul>\n<li>\n<p>\u5de6\u5de6: \u5f53\u6839\u8282\u70b9\u5de6\u5b50\u6811\u7684\u5de6\u5b50\u6811\u6709\u8282\u70b9\u63d2\u5165,\u5bfc\u81f4\u4e8c\u53c9\u6811\u4e0d\u5e73\u8861<\/p>\n<\/li>\n<li>\n<p>\u5982\u4f55\u65cb\u8f6c: \u76f4\u63a5\u5bf9\u6574\u4f53\u8fdb\u884c\u53f3\u65cb\u5373\u53ef<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"432\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064922-699aa6f281f54.png\" width=\"1179\" \/><\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5de6\u53f3<\/p>\n<ul>\n<li>\n<p>\u5de6\u53f3: \u5f53\u6839\u8282\u70b9\u5de6\u5b50\u6811\u7684\u53f3\u5b50\u6811\u6709\u8282\u70b9\u63d2\u5165,\u5bfc\u81f4\u4e8c\u53c9\u6811\u4e0d\u5e73\u8861<\/p>\n<\/li>\n<li>\n<p>\u5982\u4f55\u65cb\u8f6c: \u5148\u5728\u5de6\u5b50\u6811\u5bf9\u5e94\u7684\u8282\u70b9\u4f4d\u7f6e\u8fdb\u884c\u5de6\u65cb,\u5728\u5bf9\u6574\u4f53\u8fdb\u884c\u53f3\u65cb<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"432\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064922-699aa6f2b632e.png\" width=\"1053\" \/><\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u53f3\u53f3<\/p>\n<ul>\n<li>\n<p>\u53f3\u53f3: \u5f53\u6839\u8282\u70b9\u53f3\u5b50\u6811\u7684\u53f3\u5b50\u6811\u6709\u8282\u70b9\u63d2\u5165,\u5bfc\u81f4\u4e8c\u53c9\u6811\u4e0d\u5e73\u8861<\/p>\n<\/li>\n<li>\n<p>\u5982\u4f55\u65cb\u8f6c: \u76f4\u63a5\u5bf9\u6574\u4f53\u8fdb\u884c\u5de6\u65cb\u5373\u53ef<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"450\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064922-699aa6f2eda92.png\" width=\"1121\" \/><\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u53f3\u5de6<\/p>\n<ul>\n<li>\n<p>\u53f3\u5de6:\u5f53\u6839\u8282\u70b9\u53f3\u5b50\u6811\u7684\u5de6\u5b50\u6811\u6709\u8282\u70b9\u63d2\u5165,\u5bfc\u81f4\u4e8c\u53c9\u6811\u4e0d\u5e73\u8861<\/p>\n<\/li>\n<li>\n<p>\u5982\u4f55\u65cb\u8f6c: \u5148\u5728\u53f3\u5b50\u6811\u5bf9\u5e94\u7684\u8282\u70b9\u4f4d\u7f6e\u8fdb\u884c\u53f3\u65cb,\u5728\u5bf9\u6574\u4f53\u8fdb\u884c\u5de6\u65cb<\/p>\n<p> <img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"470\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064923-699aa6f32fe11.png\" width=\"1123\" \/><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4 id=\"4.3%E7%BA%A2%E9%BB%91%E6%A0%91%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91\">4.3\u7ea2\u9ed1\u6811\u3010\u7406\u89e3\u3011<\/h4>\n<ul>\n<li>\n<p>\u7ea2\u9ed1\u6811\u7684\u7279\u70b9<\/p>\n<ul>\n<li>\n<p>\u5e73\u8861\u4e8c\u53c9B\u6811<\/p>\n<\/li>\n<li>\n<p>\u6bcf\u4e00\u4e2a\u8282\u70b9\u53ef\u4ee5\u662f\u7ea2\u6216\u8005\u9ed1<\/p>\n<\/li>\n<li>\n<p>\u7ea2\u9ed1\u6811\u4e0d\u662f\u9ad8\u5ea6\u5e73\u8861\u7684,\u5b83\u7684\u5e73\u8861\u662f\u901a\u8fc7&#034;\u81ea\u5df1\u7684\u7ea2\u9ed1\u89c4\u5219&#034;\u8fdb\u884c\u5b9e\u73b0\u7684<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7ea2\u9ed1\u6811\u7684\u7ea2\u9ed1\u89c4\u5219\u6709\u54ea\u4e9b<\/p>\n<li>\n<p>\u6bcf\u4e00\u4e2a\u8282\u70b9\u6216\u662f\u7ea2\u8272\u7684,\u6216\u8005\u662f\u9ed1\u8272\u7684<\/p>\n<\/li>\n<li>\n<p>\u6839\u8282\u70b9\u5fc5\u987b\u662f\u9ed1\u8272<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u4e00\u4e2a\u8282\u70b9\u6ca1\u6709\u5b50\u8282\u70b9\u6216\u8005\u7236\u8282\u70b9,\u5219\u8be5\u8282\u70b9\u76f8\u5e94\u7684\u6307\u9488\u5c5e\u6027\u503c\u4e3aNil,\u8fd9\u4e9bNil\u89c6\u4e3a\u53f6\u8282\u70b9,\u6bcf\u4e2a\u53f6\u8282\u70b9(Nil)\u662f\u9ed1\u8272\u7684<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u67d0\u4e00\u4e2a\u8282\u70b9\u662f\u7ea2\u8272,\u90a3\u4e48\u5b83\u7684\u5b50\u8282\u70b9\u5fc5\u987b\u662f\u9ed1\u8272(\u4e0d\u80fd\u51fa\u73b0\u4e24\u4e2a\u7ea2\u8272\u8282\u70b9\u76f8\u8fde \u7684\u60c5\u51b5)<\/p>\n<\/li>\n<li>\n<p>\u5bf9\u6bcf\u4e00\u4e2a\u8282\u70b9,\u4ece\u8be5\u8282\u70b9\u5230\u5176\u6240\u6709\u540e\u4ee3\u53f6\u8282\u70b9\u7684\u7b80\u5355\u8def\u5f84\u4e0a,\u5747\u5305\u542b\u76f8\u540c\u6570\u76ee\u7684\u9ed1\u8272\u8282\u70b9<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"491\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064923-699aa6f367982.png\" width=\"1497\" \/><\/p>\n<\/li>\n<\/li>\n<li>\n<p>\u7ea2\u9ed1\u6811\u6dfb\u52a0\u8282\u70b9\u7684\u9ed8\u8ba4\u989c\u8272<\/p>\n<ul>\n<li>\n<p>\u6dfb\u52a0\u8282\u70b9\u65f6,\u9ed8\u8ba4\u4e3a\u7ea2\u8272,\u6548\u7387\u9ad8<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"574\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064923-699aa6f3a481b.png\" width=\"1282\" \/><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7ea2\u9ed1\u6811\u6dfb\u52a0\u8282\u70b9\u540e\u5982\u4f55\u4fdd\u6301\u7ea2\u9ed1\u89c4\u5219<\/p>\n<ul>\n<li>\n<p>\u6839\u8282\u70b9\u4f4d\u7f6e<\/p>\n<ul>\n<li>\n<p>\u76f4\u63a5\u53d8\u4e3a\u9ed1\u8272<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u975e\u6839\u8282\u70b9\u4f4d\u7f6e<\/p>\n<ul>\n<li>\n<p>\u7236\u8282\u70b9\u4e3a\u9ed1\u8272<\/p>\n<ul>\n<li>\n<p>\u4e0d\u9700\u8981\u4efb\u4f55\u64cd\u4f5c,\u9ed8\u8ba4\u7ea2\u8272\u5373\u53ef<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u7236\u8282\u70b9\u4e3a\u7ea2\u8272<\/p>\n<ul>\n<li>\n<p>\u53d4\u53d4\u8282\u70b9\u4e3a\u7ea2\u8272<\/p>\n<li>\n<p>\u5c06&#034;\u7236\u8282\u70b9&#034;\u8bbe\u4e3a\u9ed1\u8272,\u5c06&#034;\u53d4\u53d4\u8282\u70b9&#034;\u8bbe\u4e3a\u9ed1\u8272<\/p>\n<\/li>\n<li>\n<p>\u5c06&#034;\u7956\u7236\u8282\u70b9&#034;\u8bbe\u4e3a\u7ea2\u8272<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c&#034;\u7956\u7236\u8282\u70b9&#034;\u4e3a\u6839\u8282\u70b9,\u5219\u5c06\u6839\u8282\u70b9\u518d\u6b21\u53d8\u6210\u9ed1\u8272<\/p>\n<\/li>\n<\/li>\n<li>\n<p>\u53d4\u53d4\u8282\u70b9\u4e3a\u9ed1\u8272<\/p>\n<li>\n<p>\u5c06&#034;\u7236\u8282\u70b9&#034;\u8bbe\u4e3a\u9ed1\u8272<\/p>\n<\/li>\n<li>\n<p>\u5c06&#034;\u7956\u7236\u8282\u70b9&#034;\u8bbe\u4e3a\u7ea2\u8272<\/p>\n<\/li>\n<li>\n<p>\u4ee5&#034;\u7956\u7236\u8282\u70b9&#034;\u4e3a\u652f\u70b9\u8fdb\u884c\u65cb\u8f6c<\/p>\n<\/li>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>##5.HashSet\u96c6\u5408<\/p>\n<h4 id=\"5.1HashSet%E9%9B%86%E5%90%88%E6%A6%82%E8%BF%B0%E5%92%8C%E7%89%B9%E7%82%B9%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91\">5.1HashSet\u96c6\u5408\u6982\u8ff0\u548c\u7279\u70b9\u3010\u5e94\u7528\u3011<\/h4>\n<ul>\n<li>\n<p>\u5e95\u5c42\u6570\u636e\u7ed3\u6784\u662f\u54c8\u5e0c\u8868<\/p>\n<\/li>\n<li>\n<p>\u5b58\u53d6\u65e0\u5e8f<\/p>\n<\/li>\n<li>\n<p>\u4e0d\u53ef\u4ee5\u5b58\u50a8\u91cd\u590d\u5143\u7d20<\/p>\n<\/li>\n<li>\n<p>\u6ca1\u6709\u7d22\u5f15,\u4e0d\u80fd\u4f7f\u7528\u666e\u901afor\u5faa\u73af\u904d\u5386<\/p>\n<\/li>\n<\/ul>\n<h4 id=\"5.2HashSet%E9%9B%86%E5%90%88%E7%9A%84%E5%9F%BA%E6%9C%AC%E5%BA%94%E7%94%A8%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91\">5.2HashSet\u96c6\u5408\u7684\u57fa\u672c\u5e94\u7528\u3010\u5e94\u7528\u3011<\/h4>\n<p>\u5b58\u50a8\u5b57\u7b26\u4e32\u5e76\u904d\u5386<\/p>\n<p>public class HashSetDemo {<br \/>\n \u00a0 \u00a0public static void main(String[] args) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0\/\/\u521b\u5efa\u96c6\u5408\u5bf9\u8c61<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0HashSet&lt;String&gt; set &#061; new HashSet&lt;String&gt;();<br \/>\n\u200b<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0\/\/\u6dfb\u52a0\u5143\u7d20<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0set.add(&#034;hello&#034;);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0set.add(&#034;world&#034;);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0set.add(&#034;java&#034;);<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0\/\/\u4e0d\u5305\u542b\u91cd\u590d\u5143\u7d20\u7684\u96c6\u5408<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0set.add(&#034;world&#034;);<br \/>\n\u200b<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0\/\/\u904d\u5386<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0for(String s : set) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0System.out.println(s);<br \/>\n \u00a0 \u00a0 \u00a0  }<br \/>\n \u00a0  }<br \/>\n} <\/p>\n<h4 id=\"5.3%E5%93%88%E5%B8%8C%E5%80%BC%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91\">5.3\u54c8\u5e0c\u503c\u3010\u7406\u89e3\u3011<\/h4>\n<ul>\n<li>\n<p>\u54c8\u5e0c\u503c\u7b80\u4ecb<\/p>\n<p>\u662fJDK\u6839\u636e\u5bf9\u8c61\u7684\u5730\u5740\u6216\u8005\u5b57\u7b26\u4e32\u6216\u8005\u6570\u5b57\u7b97\u51fa\u6765\u7684int\u7c7b\u578b\u7684\u6570\u503c<\/p>\n<\/li>\n<li>\n<p>\u5982\u4f55\u83b7\u53d6\u54c8\u5e0c\u503c<\/p>\n<p>Object\u7c7b\u4e2d\u7684public int hashCode()&#xff1a;\u8fd4\u56de\u5bf9\u8c61\u7684\u54c8\u5e0c\u7801\u503c<\/p>\n<\/li>\n<li>\n<p>\u54c8\u5e0c\u503c\u7684\u7279\u70b9<\/p>\n<ul>\n<li>\n<p>\u540c\u4e00\u4e2a\u5bf9\u8c61\u591a\u6b21\u8c03\u7528hashCode()\u65b9\u6cd5\u8fd4\u56de\u7684\u54c8\u5e0c\u503c\u662f\u76f8\u540c\u7684<\/p>\n<\/li>\n<li>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b&#xff0c;\u4e0d\u540c\u5bf9\u8c61\u7684\u54c8\u5e0c\u503c\u662f\u4e0d\u540c\u7684\u3002\u800c\u91cd\u5199hashCode()\u65b9\u6cd5&#xff0c;\u53ef\u4ee5\u5b9e\u73b0\u8ba9\u4e0d\u540c\u5bf9\u8c61\u7684\u54c8\u5e0c\u503c\u76f8\u540c<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4 id=\"5.4%E5%93%88%E5%B8%8C%E8%A1%A8%E7%BB%93%E6%9E%84%E3%80%90%E7%90%86%E8%A7%A3%E3%80%91\">5.4\u54c8\u5e0c\u8868\u7ed3\u6784\u3010\u7406\u89e3\u3011<\/h4>\n<ul>\n<li>\n<p>JDK1.8\u4ee5\u524d<\/p>\n<p>\u6570\u7ec4 &#043; \u94fe\u8868<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"581\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064923-699aa6f3ee6e9.png\" width=\"1357\" \/><\/p>\n<\/li>\n<li>\n<p>JDK1.8\u4ee5\u540e<\/p>\n<ul>\n<li>\n<p>\u8282\u70b9\u4e2a\u6570\u5c11\u4e8e\u7b49\u4e8e8\u4e2a<\/p>\n<p>\u6570\u7ec4 &#043; \u94fe\u8868<\/p>\n<\/li>\n<li>\n<p>\u8282\u70b9\u4e2a\u6570\u591a\u4e8e8\u4e2a<\/p>\n<p>\u6570\u7ec4 &#043; \u7ea2\u9ed1\u6811<\/p>\n<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"580\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/02\/20260222064924-699aa6f447263.png\" width=\"1379\" \/><\/p>\n<\/li>\n<\/ul>\n<h4 id=\"5.5HashSet%E9%9B%86%E5%90%88%E5%AD%98%E5%82%A8%E5%AD%A6%E7%94%9F%E5%AF%B9%E8%B1%A1%E5%B9%B6%E9%81%8D%E5%8E%86%E3%80%90%E5%BA%94%E7%94%A8%E3%80%91\">5.5HashSet\u96c6\u5408\u5b58\u50a8\u5b66\u751f\u5bf9\u8c61\u5e76\u904d\u5386\u3010\u5e94\u7528\u3011<\/h4>\n<ul>\n<li>\n<p>\u6848\u4f8b\u9700\u6c42<\/p>\n<ul>\n<li>\n<p>\u521b\u5efa\u4e00\u4e2a\u5b58\u50a8\u5b66\u751f\u5bf9\u8c61\u7684\u96c6\u5408&#xff0c;\u5b58\u50a8\u591a\u4e2a\u5b66\u751f\u5bf9\u8c61&#xff0c;\u4f7f\u7528\u7a0b\u5e8f\u5b9e\u73b0\u5728\u63a7\u5236\u53f0\u904d\u5386\u8be5\u96c6\u5408<\/p>\n<\/li>\n<li>\n<p>\u8981\u6c42&#xff1a;\u5b66\u751f\u5bf9\u8c61\u7684\u6210\u5458\u53d8\u91cf\u503c\u76f8\u540c&#xff0c;\u6211\u4eec\u5c31\u8ba4\u4e3a\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4ee3\u7801\u5b9e\u73b0<\/p>\n<p>\u5b66\u751f\u7c7b<\/p>\n<p> public class Student {<br \/>\n \u00a0 \u00a0private String name;<br \/>\n \u00a0 \u00a0private int age;<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public Student() {<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public Student(String name, int age) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0this.name &#061; name;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0this.age &#061; age;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public String getName() {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0return name;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public void setName(String name) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0this.name &#061; name;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public int getAge() {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0return age;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0public void setAge(int age) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0this.age &#061; age;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0&#064;Override<br \/>\n \u00a0 \u00a0public boolean equals(Object o) {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0if (this &#061;&#061; o) return true;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0if (o &#061;&#061; null || getClass() !&#061; o.getClass()) return false;<br \/>\n\u200b<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0Student student &#061; (Student) o;<br \/>\n\u200b<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0if (age !&#061; student.age) return false;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0return name !&#061; null ? name.equals(student.name) : student.name &#061;&#061; null;<br \/>\n \u00a0  }<br \/>\n\u200b<br \/>\n \u00a0 \u00a0&#064;Override<br \/>\n \u00a0 \u00a0public int hashCode() {<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0int result &#061; name !&#061; null ? name.hashCode() : 0;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0result &#061; 31 * result &#043; age;<br \/>\n \u00a0 \u00a0 \u00a0 \u00a0return result;<br \/>\n \u00a0  }<br \/>\n} <\/p>\n<p>\u6d4b\u8bd5\u7c7b<\/p>\n<p> public class HashSetDemo02 {<br \/>\n    public static void main(String[] args) {<br \/>\n        \/\/\u521b\u5efaHashSet\u96c6\u5408\u5bf9\u8c61<br \/>\n        HashSet&lt;Student&gt; hs &#061; new HashSet&lt;Student&gt;();<\/p>\n<p>        \/\/\u521b\u5efa\u5b66\u751f\u5bf9\u8c61<br \/>\n        Student s1 &#061; new Student(&#034;\u6797\u9752\u971e&#034;, 30);<br \/>\n        Student s2 &#061; new Student(&#034;\u5f20\u66fc\u7389&#034;, 35);<br \/>\n        Student s3 &#061; new Student(&#034;\u738b\u7956\u8d24&#034;, 33);<\/p>\n<p>        Student s4 &#061; new Student(&#034;\u738b\u7956\u8d24&#034;, 33);<\/p>\n<p>        \/\/\u628a\u5b66\u751f\u6dfb\u52a0\u5230\u96c6\u5408<br \/>\n        hs.add(s1);<br \/>\n        hs.add(s2);<br \/>\n        hs.add(s3);<br \/>\n        hs.add(s4);<\/p>\n<p>        \/\/\u904d\u5386\u96c6\u5408(\u589e\u5f3afor)<br \/>\n        for (Student s : hs) {<br \/>\n            System.out.println(s.getName() &#043; &#034;,&#034; &#043; s.getAge());<br \/>\n        }<br \/>\n    }<br \/>\n} <\/li>\n<li>\n<p>\u603b\u7ed3<\/p>\n<p>HashSet\u96c6\u5408\u5b58\u50a8\u81ea\u5b9a\u4e49\u7c7b\u578b\u5143\u7d20,\u8981\u60f3\u5b9e\u73b0\u5143\u7d20\u7684\u552f\u4e00,\u8981\u6c42\u5fc5\u987b\u91cd\u5199hashCode\u65b9\u6cd5\u548cequal\u65b9\u6cd5<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u5f55 1.\u6cdb\u578b<br \/>\n1.1\u6cdb\u578b\u6982\u8ff0<br \/>\n2.Set\u96c6\u5408<br \/>\n2.1Set\u96c6\u5408\u6982\u8ff0\u548c\u7279\u70b9\u3010\u5e94\u7528\u3011<br \/>\n2.2Set\u96c6\u5408\u7684\u4f7f\u7528\u3010\u5e94\u7528\u3011<br \/>\n3.TreeSet\u96c6\u5408<br \/>\n3.1TreeSet\u96c6\u5408\u6982\u8ff0\u548c\u7279\u70b9\u3010\u5e94\u7528\u3011<br \/>\n3.2TreeSet\u96c6\u5408\u57fa\u672c\u4f7f\u7528\u3010\u5e94\u7528\u3011<br \/>\n3.3\u81ea\u7136\u6392\u5e8fComparable\u7684\u4f7f\u7528\u3010\u5e94\u7528\u3011<br \/>\n3.4\u6bd4\u8f83\u5668\u6392\u5e8fComparator\u7684\u4f7f\u7528\u3010\u5e94\u7528\u3011<br \/>\n3.5\u4e24\u79cd\u6bd4\u8f83\u65b9\u5f0f\u603b\u7ed3\u3010\u7406\u89e3\u3011<br \/>\n4.\u6570\u636e\u7ed3\u6784<br \/>\n4.1\u4e8c\u53c9\u6811\u3010\u7406\u89e3\u3011<br \/>\n4.2\u4e8c\u53c9\u67e5\u627e\u6811\u3010\u7406\u89e3\u3011<br \/>\n4.3\u5e73\u8861\u4e8c\u53c9\u6811\u3010\u7406\u89e3\u3011<br \/>\n4<\/p>\n","protected":false},"author":2,"featured_media":76443,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,114,768,190,100,1813,427],"topic":[],"class_list":["post-76460","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-java","tag-mysql","tag-sql","tag-190","tag-100","tag-1813","tag-427"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java\u96c6\u5408\uff1a\u6cdb\u578b&amp;Set&amp;\u6570\u636e\u7ed3\u6784\u8be6\u89e3 - 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