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Java Java Objects (Retired) Delivering the MVP Validation

Posted by kevin ohion
kevin ohion
1,551 Points

I don't except the "throw" show up

Bummer says "mFirstName go through but report my throw", I don't know why

TeacherAssistant.java 
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.indexOf(0) != 'm' || ! Character.isUpperCase( fieldName.indexOf(1) ) ){
      throw new IllegalArgumentException("Don't fit the requirment");
    }
    return fieldName;
  }

}

1 Answer

Craig Dennis
STAFF
Craig Dennis
Treehouse Teacher
Craig Dennis
Craig Dennis
Treehouse Teacher

In your second part of your expression, I think you want charAt not indexOf.

Hope it helps!

kevin ohion
kevin ohion
1,551 Points

It does, thank you!