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Start your free trialSam Detnon
1,363 PointsI'm having some trouble with this challenge! I think my code should pass, but its not.
My code is throwing 'Expected "m_first_name'' as an error.
Can anyone help?
Thanks, Sam
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
char second = fieldName.charAt(1);
if (fieldName.charAt(0) != 'm'){
throw new IllegalArgumentException("first letter must be M!");
}
if (Character.isUpperCase(second)){
throw new IllegalArgumentException("first letter must be M!");
}
return fieldName;
}
}
3 Answers
Micah Kline
17,831 PointsTry this...
if (!Character.isUpperCase(second)){
throw new IllegalArgumentException("second letter must be Capitalized!");
}
Sam Detnon
1,363 PointsWell, that was embarrassing!
Thanks
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"