I am currently trying to learn streams in Java, however I stumbled upon a problem I couldn't solve on my own. Given a List of Person objects with the attributes age, height and name. I want to write a method toString(), that sorts the List by height and in case the heights are equal by age (everything in descending order). Is there a possibility to solve this with a stream? I know how to sort the List by height, however I don't understand how you would get the equal elements (Persons with the same height) and sort them as well by age.

Class Person:

public class Person {
    private int age;
    private double height;
    private String name;

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

    public int getAge() {
        return age;
    }

    public double getHeight() {
        return height;
    }

    public String getName() {
        return name;
    }
}

The Data class (where you create the toString method):

public class Data {
    private List<Person> persons;

    public Data(List<Person> persons){
        this.persons = persons;
    }

    public String toString(){
        //sort the list (persons) and return a String of names

        return "";
    }
}