i m going to pay for air reservation online and i m paying through credit car

i m going to pay for air reservation online and i m paying
through credit card supose i give credit card no 123456.how
u chk this is valid or not.wat validation u put for kind of
fields

Question Posted / nidhinac

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i m going to pay for air reservation online and i m paying through credit card supose i give cred..

Answer / vikas pujar

There will be two level of verifications:

1. Front End - Where first we will check whether user has
entered valid card number or not. Normally in India Credit
Card is 16 digit Numeric. So front end need to check if
digit entered is 16 digit and its numeric only, if its not
throw error there only invalid number.

2. Back end - If number entered is 16 digits, we will be
verifying it against the database of bank. so if its correct
then continue with transaction or else throw error Credit
Card Number not found.

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i m going to pay for air reservation online and i m paying through credit card supose i give cred..

Answer / shivani

Before u insert credit card no. u have to select one kind
of bank(HSBC,HDFC,SBI,AMERICAN EXPRESS,AXIS,KOTAK
MAHINDRA,ICICI...)or else u should select for visa card or
master card american express card.Here the main thing is
the third party softwares are comes into picture.suppose if
u select HSBC credit card then our application should ask
help of HSBC.The developers are interfaces these third
party softwares where exactly they required.

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