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Mohammad hesam Ebrahiminejad
892 Pointsi cant get the lower case part
how can i check if its an upper or lower
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' || fieldName.charAt(1).isLowerCase()){ ()){
throw new IllegalArgumentException(fieldName + "its not correct");
}
return fieldName;
}
}
1 Answer
Shadd Anderson
Treehouse Project ReviewerWhen you send your code through, it gives you the error code that "char cannot be dereferenced." Basically, without going too deep into it, that just means that "isLowerCase()" can't be called on a "char", because a char is a value. However, it CAN be called on a "Character", which is an object TYPE, instead of an object VALUE. So what you'll have to do is change it to this:
... || Character.isLowerCase(fieldName.charAt(1))) {