From 2769b710a632db17a3fbc0b33e8373064091398b Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Thu, 15 Oct 2026 10:24:22 +0800
Subject: [PATCH] =?UTF-8?q?s-day03--=E6=AF=94=E8=BE=83=E5=99=A8Comparetor?=
 =?UTF-8?q?=E7=9A=84=E4=BD=BF=E7=94=A8?=
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---
 .../src/com/inmind/colletions04/Demo14.java   | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/s-day03/src/com/inmind/colletions04/Demo14.java b/s-day03/src/com/inmind/colletions04/Demo14.java
index 2c6b9ef..a0af93f 100644
--- a/s-day03/src/com/inmind/colletions04/Demo14.java
+++ b/s-day03/src/com/inmind/colletions04/Demo14.java
@@ -31,5 +31,25 @@ public class Demo14 {
         });
         System.out.println(lists);
         //请大家创建一个保存学生对象的集合，并按学生的年龄升序排序，要求使用比较器
+        ArrayList<Student> students = new ArrayList<>();
+        Collections.addAll(students
+                , new Student("张三1", 19)
+                , new Student("张三2", 20)
+                , new Student("张三3", 18)
+                , new Student("张三4", 21)
+        );
+        System.out.println(students);
+        //希望集合的学生按年龄排序（升序，降序）
+        Collections.sort(students);
+        System.out.println(students);
+        //使用比较器对学生，按年龄升序排序（比较器）
+        Collections.sort(students, new Comparator<Student>() {
+            @Override
+            public int compare(Student o1, Student o2) {
+                return o1.age-o2.age;
+            }
+        });
+
+        System.out.println(students);
     }
 }