Question

I am trying to extend a class to multiple other classes e.g.

public class Ability extends Character

Due to this i am getting an error in my code:

Implicit super constructor Character() is undefined. Must explicitly invoke another constructor Defense.java

My code is:

public class Character {
    int characterID;
    double characterHealth;

    public Character(int charID, double charHealth) {
        characterID = charID;
        characterHealth = charHealth;
    }
}

public class Defense extends Character {
    int armorClass;
    int difficultyClass;

    public Defense(int newAC, int newDC){
        armorClass = newAC;
        difficultyClass = newDC;
    }
}

I am unsure of how to invoke another constructor.
If someone could point out why and how to do it.

Answer 1

From a sub-class ctor:

super(charId, charHealth);

Since the superclass has no default constructor you must explicitly call a non-default constructor.