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Start your free trialQuinton Rivera
5,177 PointsError "mFirstName" should have passed, but "fieldName must start with m" was reported.
Not sure why I can't pass this challenge
public class TeacherAssistant {
public static String validatedFieldName(String fieldName) {
// These things should be verified:
// 1. Member fields must start with an 'm'
if(fieldName.indexOf(0) != 'm'){
throw new IllegalArgumentException("fieldName must start with m");}
// 2. The second letter in the field name must be uppercased to ensure camel-casing
if(fieldName.indexOf(1) < 'A' || fieldName.indexOf(1) > 'Z'){
throw new IllegalArgumentException("second letter in the field name must be uppercased");}
// NOTE: To check if something is not equal use the != symbol. eg: 3 != 4
return fieldName;}}
1 Answer
Seth Kroger
56,413 PointsYou need to use charAt() not indexOf() to get a character at a certain index. indexOf() is the other way around. It gives you the index of a certain character.