Friends will become enemies very quickly, if you insist on
giving ever post a subject of 'I have doubt'.

These are two separate 'questions'* that should be
on two separate (and better named) threads.  
See my other post for tips.

* Note that a question in English usually has a question
mark at the end, like '?'.  Adding a question mark would
turn those two sentences into two questions.  The question
mark itself helps the reader to scan posts, looking for
the bits that require close attention.

Each question should be in its own thread, and a summary of the
question should be in the subject line.  Have a look at some other
posts to see how it is done before posting more. You will get yourself
blacklisted if you don't follow the conventions.