We're about to write our first program in our new hello directory. You will first need to choose which editor to use. Fortunately, working with Go does not require any special IDE or editor. The Go toolchain integrates easily into many editors and IDEs. Your options range from using a simple text editor, such as Notepad, to full-fledged IDEs dedicated to Go.
I recommend that you start with a simple text editor, such as nano or gedit, since these are included with Ubuntu, easy to use, and support syntax highlighting for Go out of the box. Feel free to choose another editor or IDE though.
Plugins exist for many text editors and IDEs to add Go support. For example, Visual Studio Code, Emacs, Sublime Text, JetBrains IntelliJ, Vim, Atom, ...