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Start your free trialAlistair Mackay
7,812 PointsJava Objects: Validation - this one's tricky.
Having trouble getting this exercise to pass and I don't understand the error message I get back when I press "Check Work" - "Bummer! Expected "m_first_name" to fail but it passed."
I feel like I may have went off piste with my answer, the code compiles fine and from what I can tell should work but it's not passing the example.
public class TeacherAssistant {
public static String validatedFieldName(String fieldName) {
char[] fieldNameArray = fieldName.toCharArray();
// These things should be verified:
if (fieldNameArray[0] != 'm') {
// 1. Member fields must start with an 'm'
throw new IllegalArgumentException("variable fieldName must start with an the char 'm'");
}
if (Character.isUpperCase(fieldNameArray[1])) {
// 2. The second letter in the field name must be uppercased to ensure camel-casing
throw new IllegalArgumentException("second letter in filedName must be capitalised.");
}
// NOTE: To check if something is not equal use the != symbol. eg: 3 != 4
return fieldName;
}
}
Any pointers on how to pass this example?
2 Answers
Craig Dennis
Treehouse TeacherLooks good! I think you mean not uppercase tho!
Did you get this solved already?
Alistair Mackay
7,812 PointsAlistair Mackay
7,812 PointsYeah got there in the end - took me a while to spot where I had went wrong.
Thanks for the course! :-)
The following got it to pass, I had seen a few cleaner ways to do this that didn't use an "fieldNameArray" variable, but I was happy enough with the answer.