Use `Collections.sort(list);`
Use `list.sort(Comparator.naturalOrder());`
Use `list.sort(Comparator.reverseOrder());`
Use `Collections.sort(list, Comparator.comparing(…));`
Use `list.sort((a, b) -> a.compareTo(b));`
Use `list.sort((a, b) -> b.compareTo(a));`
Use `list.sort(Comparator.comparingInt(…));`
Use `list.sort(Comparator.comparing(…).reversed());`