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Start your free trialLeen Leenaerts
1,096 PointsWhat am I doing wrong?
./TeacherAssistant.java:4: error: char cannot be dereferenced if (!(fieldName.charAt(0) == 'm' && fieldName.charAt(1) == fieldName.charAt(1).toUpperCase())) { ^ 1 error
public class TeacherAssistant {
public static String validatedFieldName(String fieldName) {
if (!(fieldName.charAt(0) == 'm' && fieldName.charAt(1) == fieldName.charAt(1).toUpperCase())) {
throw new IllegalArgumentException("wrong fieldname");
}
return fieldName;
}
}
1 Answer
Leen Leenaerts
1,096 PointsI Found the solution myself on Google, I had to add Character. and put the char between the ().
public class TeacherAssistant {
public static String validatedFieldName(String fieldName) { if (!(fieldName.charAt(0) == 'm' && fieldName.charAt(1) == Character.toUpperCase(fieldName.charAt(1)) && Character.isLetter(fieldName.charAt(1)))){ throw new IllegalArgumentException("wrong fieldname"); } return fieldName; }
}