java sort objects by field code example

Example 1: java sort arraylist of objects by field descending

List<User> sortedUsers = users.stream()
  .sorted(Comparator.comparing(User::getCreatedOn).reversed())
  .collect(Collectors.toList());

Example 2: sort a collection based on one value java

Collections.sort(agentDtoList, (o1, o2) -> o1.getCustomerCount() - o2.getCustomerCount());