Strings, Characters and Regular Expressions - Java: How to Program Early Objects - page 627

35 else if (!ValidateInput.validateCity(city))

36 System.out.println( "Invalid city" );

37 else if (!ValidateInput.validateState(state))

38

System.out.println( "Invalid state" );

39

else if (!ValidateInput.validateZip(zip))

40

System.out.println( "Invalid zip code" );

41

else if (!ValidateInput.validatePhone(phone))

42

System.out.println( "Invalid phone number" );

43

else

44

System.out.println( "Valid input. Thank you." );

45

}

46

} // end class Validate

Please enter first name:
Jane
Please enter last name:
Doe
Please enter address:
123 Some Street
Please enter city:
Some City
Please enter state:
SS
Please enter zip:
123
Please enter phone:
123-456-7890

Validate Result:
Invalid zip code

Please enter first name:
Jane
Please enter last name:
Doe
Please enter address:
123 Some Street
Please enter city:
Some City
Please enter state:
SS
Please enter zip:
12345
Please enter phone:
123-456-7890

Validate Result:
Valid input. Thank you.

Fig. 14.21 | Input and validate data from user using the ValidateInput class. (Part 2 of 2.)

Figure 14.20 validates user input. Line 9 validates the first name. To match a set of
characters that does not have a predefined character class, use square brackets, [] . For
example, the pattern "[aeiou]" matches a single character that's a vowel. Character ranges