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Java Java Objects (Retired) Delivering the MVP Validation

Posted by Anderson Darrell
Anderson Darrell
1,513 Points

*[SOLVED]* My code won't run! Need a coding expert! :(

Hi there : )

I've looked through the questions posted here and searched online, but am still struggling to figure out why my code from the challenge will not compile. Would love some assistance. Thank you for the help!! Love the course!

What I have (tried to format here as best I could): 

public class TeacherAssistant {

  public static String validatedFieldName(String fieldName) {
    boolean isValidFieldName = false; 
    while (isValidFieldName != true) {
      if (fieldName.charAt(0) == 'm' && Character.isUpperCase(fieldName.charAt(1))) {
        isValidFieldName = true;
      } throw new IllegalArgumentException("Please insert either an 'm' before your field name, or capitalize the first letter of your name.");
    }
    return fieldName;
  }
}

Moderator Edited: Added "Solved" to Post title as a resolution has been reached.

Anderson Darrell
Anderson Darrell
1,513 Points

Sorry for taking your time if you read my query. I actually figured it out! I needed an else statement. :D

Jorge Otero
Jorge Otero
16,380 Points

Even though the question is solve I would like to add a couple of thing so the students that read this code don't get confuse.

  1. In the if statement line you want to use || instead of &&, because you want to throw and IllegalArgumentException if any of the factors are true, not only both.
  2. You also want to change the value of isValidFieldName to true if there is no IllegalArgumentException, otherwise you will be in a loop because isValidFieldName will always be false.