carlo@carlo-Ubuntu:~/Pobrane$ javaws
Program javaws it's not already installed. You can install them using:
sudo apt install icedtea-netx
carlo@carlo-Ubuntu:~/Pobrane$ sudo apt install icedtea-netx
Reading packet list... Done
MAking tree dependencies       
Reading state information... Done
icedtea-netx is already the newest version (1.6.2-3ubuntu1).
0 updated, 0 installed, 0 removed i 0 non installed.
carlo@carlo-Ubuntu:~/Pobrane$