“`” \u8003\u5bdf\u70b9\uff1aTree<\/p>\n
\u00a0<\/p>\n
TreeSet\u8981\u6c42\u5b58\u653e\u7684\u5bf9\u8c61\u6240\u5c5e\u7684\u7c7b\u5fc5\u987b\u5b9e\u73b0Comparable\u63a5\u53e3\uff0c\u8be5\u63a5\u53e3\u63d0\u4f9b\u4e86\u6bd4\u8f83\u5143\u7d20\u7684compareTo()\u65b9\u6cd5\uff0c\u5f53\u63d2\u5165\u5143\u7d20\u65f6\u4f1a\u56de\u8c03\u8be5\u65b9\u6cd5\u6bd4\u8f83\u5143\u7d20\u7684\u5927\u5c0f\u3002TreeMap\u8981\u6c42\u5b58\u653e\u7684\u952e\u503c\u5bf9\u6620\u5c04\u7684\u952e\u5fc5\u987b\u5b9e\u73b0Comparable\u63a5\u53e3\u4ece\u800c\u6839\u636e\u952e\u5bf9\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002Collections\u5de5\u5177\u7c7b\u7684sort\u65b9\u6cd5\u6709\u4e24\u79cd\u91cd\u8f7d\u7684\u5f62\u5f0f\uff0c\u7b2c\u4e00\u79cd\u8981\u6c42\u4f20\u5165\u7684\u5f85\u6392\u5e8f\u5bb9\u5668\u4e2d\u5b58\u653e\u7684\u5bf9\u8c61\u6bd4\u8f83\u5b9e\u73b0Comparable\u63a5\u53e3\u4ee5\u5b9e\u73b0\u5143\u7d20\u7684\u6bd4\u8f83\uff1b\u7b2c\u4e8c\u79cd\u4e0d\u5f3a\u5236\u6027\u7684\u8981\u6c42\u5bb9\u5668\u4e2d\u7684\u5143\u7d20\u5fc5\u987b\u53ef\u6bd4\u8f83\uff0c\u4f46\u662f\u8981\u6c42\u4f20\u5165\u7b2c\u4e8c\u4e2a\u53c2\u6570\uff0c\u53c2\u6570\u662fComparator\u63a5\u53e3\u7684\u5b50\u7c7b\u578b\uff08\u9700\u8981\u91cd\u5199compare\u65b9\u6cd5\u5b9e\u73b0\u5143\u7d20\u7684\u6bd4\u8f83\uff09\uff0c\u76f8\u5f53\u4e8e\u4e00\u4e2a\u4e34\u65f6\u5b9a\u4e49\u7684\u6392\u5e8f\u89c4\u5219\uff0c\u5176\u5b9e\u5c31\u662f\u901a\u8fc7\u63a5\u53e3\u6ce8\u5165\u6bd4\u8f83\u5143\u7d20\u5927\u5c0f\u7684\u7b97\u6cd5\uff0c\u4e5f\u662f\u5bf9\u56de\u8c03\u6a21\u5f0f\u7684\u5e94\u7528\uff08Java\u4e2d\u5bf9\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u652f\u6301\uff09\u3002<\/p>\n
\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n
<pre><code class=""language-java"" lang=""java"">public class
\nStudent implements Comparable<Student> {
\n private Stringname; \/\/ \u59d3\u540d
\n private int age; \/\/ \u5e74\u9f84
\n public Student(String name, int age) {
\n this.name = name;
\n this.age = age;
\n }
\n @Override
\n public String toString() {
\n return ""Student [name="" +name + "", age="" + age + ""]"";
\n }
\n @Override
\n public int compareTo(Student o) {
\n return this.age – o.age; \/\/ \u6bd4\u8f83\u5e74\u9f84(\u5e74\u9f84\u7684\u5347\u5e8f)
\n }
\n }
\n import java.util.Set;
\n import java.util.TreeSet;
\n class Test01 {
\n public static void main(String[] args) {
\n Set<Student> set = new TreeSet<>(); \/\/ Java 7
\n }
\n }
\n import java.util.Set;
\n import java.util.TreeSet;
\n class Test01 {
\n public static void main(String[] args) {
\n Set<Student> set = new TreeSet<>(); \/\/ Java 7\u7684\u94bb\u77f3\u8bed\u6cd5(\u6784\u9020\u5668\u540e\u9762\u7684\u5c16\u62ec\u53f7\u4e2d\u4e0d\u9700\u8981\u5199\u7c7b\u578b)
\n set.add(new Student(""HaoLUO"", 33));
\n set.add(new Student(""XJWANG"", 32));
\n set.add(new Student(""BruceLEE"", 60));
\n set.add(new Student(""BobYANG"", 22));<\/p>\n
for(Student stu : set) {
\n System.out.println(stu);
\n }
\n \/\/
\n set.add(new Student(""HaoLUO"", 33));
\n set.add(new Student(""XJWANG"", 32));
\n set.add(new Student(""BruceLEE"", 60));
\n set.add(new Student(""BobYANG"", 22));
\n for(Student stu : set) {
\n System.out.println(stu);
\n }
\n \/\/ \u8f93\u51fa\u7ed3\u679c:
\n \/\/ Student [name=Bob YANG, age=22]
\n \/\/ Student [name=XJ WANG, age=32]
\n \/\/ Student [name=Hao LUO, age=33]
\n \/\/ Student [name=Bruce LEE, age=60]
\n }
\n }
\n \/\/ Student [name=Bob YANG, age=22]
\n \/\/ Student [name=XJ WANG, age=32]
\n \/\/ Student [name=Hao LUO, age=33]
\n \/\/ Student [name=Bruce LEE, age=60]
\n }
\n }
\n<\/code><\/pre><\/p>\n
\u00a0<\/p>\n
<pre><code> "“`
\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
“`” \u8003\u5bdf\u70b9\uff1aTree \u00a0 TreeSet\u8981\u6c42\u5b58\u653e\u7684\u5bf9\u8c61\u6240\u5c5e\u7684\u7c7b\u5fc5\u987b\u5b9e\u73b0Compar […]<\/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-45290","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/45290","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=45290"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/45290\/revisions"}],"predecessor-version":[{"id":45291,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/45290\/revisions\/45291"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=45290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=45290"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=45290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}