it's not the bad idea of using catch exception.
catch exception catches all the exceptions in try block.
if we use these blocks, we will be able to know where the 
exact error is.
if we use one try block, we must use the catch block .

if you know what kind of error may occur in that block mean
, will it be right to use catch block without handling the
proper validation?

Catch(Exception) is Bad Because Of It supress your Fault in
the coding