Some Help with the Array's

I would like first of all to say that i am very impressed from this community,so hello to all!
I would like to make a question for the functions that i can make with the array's.The thing is that i want to calculate the elements of the array that are not equal to zero ,and i know that i have to make it with a Do while.. but i can't seem to improvise for the solution .
If you can help me ......

Welcome to the forums.

I think you should identify what language you are using as this section is for "Other Basic"; non-specific.