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Start your free trialPriya Patil
2,471 PointsCan you please let me know what i am doing wrong here? please it will be very helpful
Can you please help in resolving this error
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 letter;
if(!(fieldName.charAt(0) == 'm'))
{
throw new IllegalArgumentException(" it should start with m");
}
letter = fieldName.charAt(1);
Character.toLoweCase(letter);
return fieldName;
}
}
3 Answers
Sivasuryateja Raparla
3,966 PointsThe 2 test ask to check whether or not the second character in the string is UpperCase. You can do that by checking the below statement in an if condition if( !Character.isUpperCase(fieldName.charAt(1))) { throw new IllegalArgumentException(" The second letter in the field name must be uppercased to ensure camel-casing"); }
Sivasuryateja Raparla
3,966 Pointsif( !Character.isUpperCase(fieldName.charAt(1))) {
throw new IllegalArgumentException(" The second letter in the field name must be uppercased to ensure camel-casing");
}
Craig Dennis
Treehouse TeachertoLoweCase
is missing an r. But I think you want Character.isUpperCase
.
if(!(fieldName.charAt(0) == 'm'))
Is better stated:
if(fieldName.charAt(0) != 'm')
Priya Patil
2,471 PointsThank you so much for your response.
Sivasuryateja Raparla
3,966 Pointsif(!(fieldName.charAt(0) != 'm')) It goes into the if block only if the condition is false and it can only be false if the first character is 'm'. But in the if block we are throwing a exception..so the if condition should say if((fieldName.charAt(0) != 'm')) without the negation to goes inside the if statement to throw the exception
Craig Dennis
Treehouse TeacherSorry..typo...edited. Thanks Sivasuryateja
Priya Patil
2,471 PointsPriya Patil
2,471 PointsThank you so much for your response.
Priya Patil
2,471 PointsPriya Patil
2,471 PointsThank you so much for your response.