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Java Java Objects (Retired) Delivering the MVP Validation

Hasan Nagaria
Hasan Nagaria
4,855 Points
Posted by Hasan Nagaria
Hasan Nagaria
4,855 Points

exception exercise help

I dont understand this question. When I attempt the preview/help comments make little sense.

Anyways, I thought I would do something like

if(firstletter NOT m OR second letter NOT capital){ throw exception. }

Is that it? Im struggling with writing it down in code. I also checked the string directory for a boolean isCaptail but I couldnt find it. What am I doing wrong?

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
    return fieldName;
  }

}

1 Answer

Christopher Augg
Christopher Augg
21,223 Points
Christopher Augg
Christopher Augg
21,223 Points

Hasan,

Yes, you are on the right track with your if statement. Also, the method call you are looking for to test the character's case is not in the String class as you stated. It is in the Character class. Therefore, the two methods you can use are:

fieldName.charAt(int) and Character.isUpperCase(char)

I hope this helps. Please let me know if you need more of a hint if not.

Regards,

Chris