Should there be two data types for the Parent and Child class in Java?

Question

I have two classes Parentand Child.

class Child extends Parent {
    private String extraField1;
    private String extraField2;
    ...
}

Childthe class has 2 additional fields extraField1and extraField2.

Q1. Should I make two diff. tables in the data file: one for Childand another for Parent?

or

Q1. Add two columns to the table Parent(each column for one additional field) and save Childin the table Parent.

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Yes, Childand Parentare classes in the same hierarchy.

Answer 1

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