How to install Intellij IDEA on Ubuntu?

I'm new to Ubuntu and Linux in general. I want to code in Java on my computer, but I'm having problems installing [IntelliJ IDEA][1] on Ubuntu. I have downloaded and extracted the file and for some reason renamed the folder to idea. I tried moving the folder to `/usr/share/applications` or something but I didn't have permission. I used `sudo -i` in terminal to gain permission but didn't manage to get out of root folder. Can anyone help me with a step by step way to move the folder, create a shortcut in the search bar or whatever it's called and install it properly? [1]: https://www.jetbrains.com/idea/download/#section=windows