conceptual problem about ARRAY

What happens when if will write the value in array subscript operator which is beyond the size of array?

 

may be: It will return zero or null value or give an error message.I am not sure.

 

No. This is a wrong answer.It will return a garbage value but i dont know why.

 

If we will go the beyond array it will point next continuous memory address. Thus it will return a garbage value.