Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialRonit Mankad
12,166 PointsLogical error
My syntax is right but I still get the error : "Expected "firstName" to fail but it passed". Help.
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
if(fieldName.charAt(0)!='m' && !Character.isUpperCase(fieldName.charAt(1)) && fieldName.charAt(1)>='A' && fieldName.charAt(1)<='Z'){
throw new IllegalArgumentException("The member variable must start with an 'm'\n");
}
return fieldName;
}
}
1 Answer
Jeremy Hill
29,567 PointsYour && portion is messing you up. It should have been || (or) not (and). Your code should look more like this:
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
if(fieldName.charAt(0)!='m' || (!(Character.isUpperCase(fieldName.charAt(1)))))
throw new IllegalArgumentException("The member variable must start with an 'm'\n");
return fieldName;
}
}
Ronit Mankad
12,166 PointsRonit Mankad
12,166 PointsThanks very much