Have you ever wrote any program using echo command , no IDE, no text editors strictly the echo command on your terminal
well in this video i write a short java program with two integers that gets added and assigned to a third integer and printed out with some text. all this is done using the echo command.
Mostly i use vim, it's fun to learn any language using a text editor and use IDE's for projects.
And using echo command to test how comfortable are you with the syntax of any language you're learning