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Start your free trialAlina Sirbeanu
992 PointsI completely din't und the Challenge.Plss help
I din't understand what to do in this challange.
public class TeacherAssistant {
String firstName;
public static String validatedFieldName(fieldName) {
if(!Character.isLetter(firstName)){
throw new IllegalArgumentException ("A letter is required");
}
fieldName =Character.toLowerCase(firstName);
// 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
Michael Hess
24,512 PointsHi Alina,
This challenge wants us to make sure a member field begins with a lowercase m and that the second character in the member field is an uppercase letter. Please see the following code:
if (fieldName.startsWith("m") && Character.isUpperCase(fieldName.charAt(1))) {
return fieldName;
} else {
throw new IllegalArgumentException("Invalid field name");
}
If you have any questions feel free to ask them!