java 创建一个学生类有属性 名字年龄学校性别 然后创建测试类生成一百个学生对象存入list集合 输出名字中只有两个字学校是虹猫年龄大于25小于30并且按照年龄 进行升序排序 最后换成set集合 输出

学生类：

public class Student implements Comparable<Student> {

    private String name;
    private int age;
    private String school;
    private String gender;

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

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    public String getSchool() {
        return school;
    }

    public String getGender() {
        return gender;
    }

    @Override
    public int compareTo(Student o) {
        return Integer.compare(this.age, o.age);
    }
}

测试类：

import java.util.*;

public class Test {
    public static void main(String[] args) {
        List<Student> list = new ArrayList<>();
        for (int i = 0; i < 100; i++) {
            list.add(new Student(getRandomName(), getRandomAge(), getRandomSchool(), getRandomGender()));
        }
        List<Student> result = new ArrayList<>();
        for (Student s : list) {
            if (s.getName().length() == 2 && s.getSchool().equals("虹猫") && s.getAge() > 25 && s.getAge() < 30) {
                result.add(s);
            }
        }
        Collections.sort(result);
        Set<Student> set = new TreeSet<>(result);
        for (Student s : set) {
            System.out.println(s.getName() + " " + s.getAge() + " " + s.getSchool() + " " + s.getGender());
        }
    }

    private static String getRandomName() {
        String[] firstName = {"张", "王", "李", "赵", "陈", "刘", "林", "周", "吴", "郑", "梁", "黄", "何", "孙", "蒋", "沈", "杨", "朱", "秦", "许", "冯", "邓", "曾", "程", "卢", "胡", "何", "吕"};
        String[] lastName = {"小", "明", "红", "丽", "强", "伟", "芳", "娜", "峰", "辉", "宇", "飞", "建", "超", "帅", "霞", "彬", "军", "玲", "欣", "宁", "婷", "浩", "磊", "洁", "阳", "倩"};
        Random random = new Random();
        return firstName[random.nextInt(firstName.length)] + lastName[random.nextInt(lastName.length)];
    }

    private static int getRandomAge() {
        Random random = new Random();
        return random.nextInt(10) + 20;
    }

    private static String getRandomSchool() {
        String[] schools = {"虹猫", "蓝兔", "绿鹿", "黄狗", "红猪"};
        Random random = new Random();
        return schools[random.nextInt(schools.length)];
    }

    private static String getRandomGender() {
        String[] genders = {"男", "女"};
        Random random = new Random();
        return genders[random.nextInt(genders.length)];
    }
}
``