Java 8 Comparator chaining with a reverse on single property

Question

I am using a Comparator to sort a list of Student objects.

I want to reverse the sorting on the id property, but using reverse() method applies it on the whole sorting.

How to make it happens only on the id?

Here's my code so far:

 public List<Student> getStudents(List<String> events) {     Comparator<Student> comparatorStudents = Comparator.comparing(Student::getCGPA).thenComparing(Student::getName)       .thenComparingInt(Student::getID).reverse();     List<Student> students = new ArrayList<Student>();     //Filling students     Collections.sort(students, comparatorStudents);     return students;   } 

Answer 1

Change the last bit to:

.thenComparing(Student::getID, Comparator.reverseOrder()) 

Or, if you want to avoid autoboxing:

.thenComparing(Comparator.comparingInt(Student::getID).reversed()) 

Answer 2

Put the call of reversed() inside thenComparing:

public List<Student> getStudents(List<String> events) {     Comparator<Student> comparatorStudents = Comparator.comparing(Student::getCGPA)        .thenComparing(Student::getName)        .thenComparing(Comparator.comparingInt(Student::getID).reversed());     List<Student> students = new ArrayList<Student>();     //Filling students     Collections.sort(students, comparatorStudents);     return students; }