Let's say I have an abstract class called 'Person' with three variables, them being: 'dateOfBirth', 'name', 'uniqueIdentifier' (social security number, etc).
dateOfBirth is LocalDate. name is String. uniqueIdentifier is String.
Then, I have another class called 'Dependent' that extends this class with a variable called 'kinship' as an enum called 'Kinship' which has the following values: 'Son', 'Nephew', and 'Other'.
However, in order to construct a Dependent, I need to check if his age is valid. He can't be older than 17 years old. I have an exception class ready and well and I am using this formula to check the validity for the construction:
if (Period.between(dateOfBrith, LocalDate.now()).getYears() > 17) {
throw new DependentException("Dependent must be less than 18 years old!");
}
However, while doing this:
public Dependent(String name, String uniqueIdentifier, LocalDate dataOfBirth, Kinship kinship) {
if (Period.between(dataOfBirth, LocalDate.now()).getYears() > 17) {
throw new DependentException("Dependent must be less than 18 years old!");
}
else {
super(name, uniqueIdentifier, dataOfBirth;
this.kinship = kinship;
}
}
Eclipse refuses giving me the following error: Implicit super constructor Person() is undefined. Must explicitly invoke another constructor.
How would I go about fixing this error in order to prevent the Constructor from instantiating the object if it doesn't meet the logic requirements? Or am I supposed to do this outside the constructor? But, if I do this outside the constructor, how will my constructor know that there's a parameter to be followed? No rush, any help is appreciated! I'm a beginner and would like to understand what I'm doing wrong here.
