multi arrays -java

Question

I just can't understand multi arrays.
I know how to make them and how to print them but things like...

https://code.sololearn.com/cW4ryvQFoYf1/#java

I know it's quite alot but i legit don't know what's going on.
I have seen alot of videos on youtube but i just don't get it.
I feel this is very important so i really want to understand this.

Thank you

Answer 1

I made this example to help you, there is plenty of explanations.
I hope this helps !

https://code.sololearn.com/cO7110lj3oyX