Using java8 how can we sort elements starting from the second element to till last?

Question

Using java8 how can we sort elements starting from the second element to till last?

  list.stream().filter(student -> student.getAge()!=15).sorted(Comparator.comparing(student->student.getAge())).collect(Collectors.toList());

The final sorted list should contain all the elements including first one.

I have tried above code snippet:

Here i dont want to touch first element.The above code is sorting from 2nd element to till last element.the problem is i am not getting first element(age =15) in output.

If i dont apply filter it will sort all the elements and i will loose first element, which should not happen.

Please help me on this.Thanks in advance.

Answer 1

 List<Student> result = Stream.concat(
            list.stream().findFirst().map(Stream::of).orElse(Stream.empty()),
            list.stream().skip(1).sorted(Comparator.comparing(Student::getAge)))
            .collect(Collectors.toList());

    System.out.println(result);