List＜T＞根据属性去重

public class Demo {
    
    public static void main(String[] args) throws IOException {
    
        Student s1 = new Student(1L, "a", 18);
        Student s2 = new Student(2L, "b", 19);
        Student s3 = new Student(3L, "c", 20);
        Student s4 = new Student(4L, "a", 13);
        Student s5 = new Student(5L, "a", 18);
        List<Student> list = Arrays.asList(s1, s2, s3, s4, s5);
        list = list.stream().collect(
                Collectors.collectingAndThen(
                        Collectors.toCollection(
                                () -> new TreeSet<>(Comparator.comparing(e ->
                                        e.getName() + "#" + e.getAge()
                                ))
                        ), ArrayList::new)
        );
        list.forEach(System.out::println);
    }
}