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Start your free trialJonathan Hector
5,225 PointsKeeps telling me I'm using a different type of IllegalArgumentException. Why? Please help
After a lot of changes it keeps telling me the same thing.
import java.util.Scanner;
public class TeacherAssistant {
public static String validatedFieldName(String fieldName) {
Scanner in = new Scanner(System.in);
fieldName = "m"+in.nextLine();
System.out.printf("Write a field NAME: %s \n", fieldName);
char letter1 = fieldName.charAt(0);
char letter2 = fieldName.charAt(1);
boolean letterCheck1 = Character.isLowerCase(letter1);
boolean letterCheck2 = Character.isUpperCase(letter2);
boolean letterCheck3 = Character.isLetter(letter2);
if (!letterCheck1){
throw new IllegalArgumentException (letter1 +"You must start with an m");
}
if (!letterCheck2 && letterCheck3){
throw new IllegalArgumentException (letter2 +"The second letter must be capital");
}
// These things should be verified:
// 1. Member fields must start with an 'm'
// 2. The second letter in the field name must be uppercased to ensure camel-casing
// NOTE: To check if something is not equal use the != symbol. eg: 3 != 4
return fieldName;
}
}
1 Answer
Alexander Nikiforov
Java Web Development Techdegree Graduate 22,175 PointsMake sure you check community answers by clicking on 'Validation' in the top of the page in the following line
Java -> Java Objects -> Delivering the MVP -> Validation
Here is the direct link just in case
https://teamtreehouse.com/community/code-challenge:6022
There a lot of them:
https://teamtreehouse.com/community/how-can-check-fieldname-so-it-starts-with-m-and-the-second-letter-capital https://teamtreehouse.com/community/validation-7 https://teamtreehouse.com/community/what-am-i-doing-wrong-254