Getting ASCII codes of character

I am writing a method that will take a character and will check if it lies under ASCII range. I know the ASCII codes range but don't know exactly how to proceed. The method signature is as follows:

Code:

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public static boolean validateCharacter(char a)
{
...
}

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Kindly advice.

If you know the range, you can simply check for the number in that range, for example:

Code:

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1) if char [B]a[/B] is a value between 97 to 122
  i) output "lowercase character" or "in range"

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You could also find an API provided ways to test for these problems.