定义一个TreeSet集合用来存储学生对象

好的，可以通过以下代码定义一个TreeSet集合用来存储学生对象：

import java.util.TreeSet;

public class Student implements Comparable<Student> {
    private String name;
    private int age;

    public Student(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    @Override
    public int compareTo(Student student) {
        if (this.age > student.getAge()) {
            return 1;
        } else if (this.age < student.getAge()) {
            return -1;
        } else {
            return this.name.compareTo(student.getName());
        }
    }

    public static void main(String[] args) {
        TreeSet<Student> set = new TreeSet<>();
        set.add(new Student("Tom", 20));
        set.add(new Student("Kate", 18));
        set.add(new Student("Jack", 22));
        for (Student s : set) {
            System.out.println("name: " + s.getName() + " age: " + s.getAge());
        }
    }
}

这段代码实现了Comparable接口，根据学生对象的年龄和姓名进行升序排序，输出结果为：

name: Kate age: 18
name: Tom age: 20
name: Jack age: 22