Validating E-mails using Regular Expressions in Java
To sum up the discussion at http://stackoverflow.com/questions/1360113/is-java-regex-thread-safe/, you can reuse (keep in static variables) the compiled Pattern(s) and tell them to give you new Matchers when needed to validate those regex pattens against some string: import java.util.regex.Matcher; import java.util.regex.Pattern; /** * Validation helpers */ public final class Validators { private static final String EMAIL_PATTERN = [...]
