How to uniquely identify a X509 Certificate ?

gerprint and I guess these are unique to a certficate. Are these fingerprints unique for a certificate ? If my understanding is correct then are there any java API's available for us to extract these fingerprints and help me in uniquely identifying the certificates. Please suggest ... Thanks & Regards, Kr.

Re: How to uniquely identify a X509 Certificate ?

Thank you all for your valuable inputs.