如何使两个对象具有可比性

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

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

    // 实现compareTo方法
    @Override
    public int compareTo(Person other) {
        // 按照年龄进行比较
        return this.age - other.age;
    }

    // 其他代码...

    public static void main(String[] args) {
        Person person1 = new Person("Alice", 25);
        Person person2 = new Person("Bob", 30);

        int result = person1.compareTo(person2);
        if (result < 0) {
            System.out.println("person1小于person2");
        } else if (result == 0) {
            System.out.println("person1等于person2");
        } else {
            System.out.println("person1大于person2");
        }
    }
}