What does any element of an array contains, when the array is defined.

Thank You.

Then how shall I declare it GLOBALLY? (I mean what would the syntax be?)

I just want to store some values in array(only one character, in upper-case, per element of array). And then delete the undesired values and/or replace them by some other character. So, how to delete those chars and make those array elements "NULL"??

Please please reply. :cold_sweat: