How to get the ascii value of characters and numbers

Hi,
Can someone please tell me weater there is an inbuild function in java to get the ascii values....Suppose I want to know the ascii value of a which is 63...then how do i do it...Like if it is c or c++ we can use "toascii" function...
Please help me with an answer...
Thanks
Rahul

Thanks....This solves my problem at present as I have to do validations using ascii values.
regards
rahul

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