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Java Java Objects (Retired) Delivering the MVP Validation

Posted by Stoy Gates
Stoy Gates
1,197 Points

I've added the method validatedFieldName it will return the validated field name. If the value passed in doesn't meet th

Any hint as to where I am going wrong here?

TeacherAssistant.java 
public class TeacherAssistant {

  public static String validatedFieldName(String fieldName) {
    // These things should be verified:
    // 1.  Member fields must start with an 'm'
    if (fieldName(charAt(0) != "m" )) {
      throw new IllegalArgumentException ("error");
    }
    // 2.  The second letter in the field name must be uppercased to ensure camel-casing

      if (!Character.isUpperCase(fieldName.charAt(1))) {
            throw new IllegalArgumentException("Must be uppercase."); 
    // NOTE:  To check if something is not equal use the != symbol. eg: 3 != 4
    return fieldName;
  }

}

3 Answers

Kourosh Raeen
Kourosh Raeen
23,733 Points
Kourosh Raeen
Kourosh Raeen
23,733 Points

In the first if statement:

fieldName(charAt(0) != "m")

should be:

fieldName.charAt(0) != 'm'
Stoy Gates
Stoy Gates
1,197 Points

Not sure that that is it. Now I am getting this error.

./TeacherAssistant.java:6: error: '(' expected if fieldName.charAt(0) != 'm' { ^ ./TeacherAssistant.java:6: error: ')' expected if fieldName.charAt(0) != 'm' { ^ ./TeacherAssistant.java:16: error: reached end of file while parsing } ^ 3 errors

Stoy Gates
Stoy Gates
1,197 Points
Stoy Gates
Stoy Gates
1,197 Points

Got it to take. Was missing a closing bracket. Thanks for trying to help though : )

Kourosh Raeen
Kourosh Raeen
23,733 Points
Kourosh Raeen
Kourosh Raeen
23,733 Points

The if condition needs to be inside parenthesis:

if (fieldName.charAt(0) != 'm' ) {
      throw new IllegalArgumentException ("error");
}
micheala leaver
micheala leaver
1,313 Points

I did all that but I still got this: ./TeacherAssistant.java:17: error: reached end of file while parsing } ^ 1 error

Kourosh Raeen
Kourosh Raeen
23,733 Points
Kourosh Raeen
Kourosh Raeen
23,733 Points

You maybe missing a closing }. Can you post your code?

micheala leaver
micheala leaver
1,313 Points

Thanks for trying to help but I finally got it! If i need help i'll be sure to go to you!