diff --git a/src/class38/Student.java b/src/class38/Student.java
new file mode 100644
index 0000000..0fd6e98
--- /dev/null
+++ b/src/class38/Student.java
@@ -0,0 +1,16 @@
+package class38;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class Student {
+    private String name;
+    private int age;
+    private double height;
+    private char sex;
+
+}
diff --git a/src/class38/Test4.java b/src/class38/Test4.java
new file mode 100644
index 0000000..4ab4c48
--- /dev/null
+++ b/src/class38/Test4.java
@@ -0,0 +1,36 @@
+package class38;
+
+import java.util.Arrays;
+import java.util.Comparator;
+
+public class Test4 {
+    public static void main(String[] args) {
+        Student[] students = new Student[6];
+        students[0] = new Student("般素素", 35, 171.5, '女');
+        students[1] = new Student("杨幂", 28, 168.5, '女');
+        students[2] = new Student("张无忌", 25, 181.5, '男');
+        students[3] = new Student("小昭", 19, 165.5, '女');
+        students[4] = new Student("赵敏", 27, 167.5, '女');
+        students[5] = new Student("刘亦菲", 36, 168, '女');
+
+        Arrays.sort(students, new Comparator<Student>() {
+            @Override
+            public int compare(Student o1, Student o2) {
+                //比较，返回正数表示o1比o2大，返回负数表示o1比o2小，返回0表示o1和o2相等
+//                if(o1.getAge()> o2.getAge()){
+//                    return 1;
+//                } else if (o1.getAge()< o2.getAge()) {
+//                    return -1;
+//                }else {
+//                    return 0;
+//                }
+                return o1.getAge()-o2.getAge();
+            }
+        });
+
+        for (Student student : students) {
+            System.out.println(student);
+        }
+    }
+
+}