Sort List of Objects by Property

yourList.sort(Comparator.comparing(obj -> obj.getYourProperty));

Sort List of String:
list.sort(String::compareToIgnoreCase);

Không có nhận xét nào:

Check to be sure that port 22 is enabled before you reload

 https://superuser.com/questions/590600/ufw-is-active-but-not-enabled-why etting  ENABLED=yes  in  /etc/ufw/ufw.conf  did it for me. $ sudo ...