Question { 4203 }

I know whole thing ab't Arrays related to declaration..can
anyone tell me what exactly use of array or anyone faced a
situation where he found use of array must....

Answer

Yes, array will makes things easier when you need to refer few values which might not necessarily be taken from a physical file. Arrays are like single variable that can hold many values and can be referred using index of that variable.

It is a big topic, I suggest you to read some reference mateirals.