public static String emailPattern = "^[a-zA-Z][\\w\\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\\w\\.-]*[a-zA-Z0-9]\\.[a-zA-Z][a-zA-Z\\.]*[a-zA-Z]$";
 
public static boolean isEmail(String email) {
  Pattern p = Pattern.compile(emailPattern); // Set the email pattern string
  Matcher m = p.matcher(email); // Match the given string with the pattern
  return m.matches();
}