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Start your free trialms2030
2,973 PointsWhat's wrong with this code challenge?
Error reported: Bummer! "mFirstName" should have passed but invalid field name was reported.
I tested it with java-repl and it works.
public class TeacherAssistant {
public static String validatedFieldName(String fieldName) {
// 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
if (!(fieldName.indexOf(0) == 'm' && Character.isUpperCase(fieldName.toCharArray()[1]))) {
throw new IllegalArgumentException("Invalid field name");
}
return fieldName;
}
}
2 Answers
Harry James
14,780 PointsHey ms2030!
If you change the &&
in your if statement to a ||
then the challenge will pass :)
The reason being is that the code challenge will want to throw an exception if either the first character is a capital or if the second character isn't a capital - not just when both are done wrong.
Hope it helps!
Jess Sanders
12,086 Pointsprivate char validateGuess(char letter) {
if (!Character.isLetter(letter)) {
throw new IllegalArgumentException("A letter is required."
}
letter = Character.toLowerCase(letter);
if (mMisses.indexOf(letter) >= 0 || mHits.indexOf(letter) >= 0) {
throw new IllegalArgumentException(letter + " has already been guessed") }
return letter;
}
- The above code is the example to follow.
- We care about charAt for this challenge, rather than indexOf
- In pseudocode, we want to check for the following condition, and throw an error: " if the character at index 0 of fieldName does not equal 'm' OR the character at index 1 of fieldName is not upper case"
ms2030
2,973 Pointsms2030
2,973 PointsThanks!