public abstract class UnitClass{

    public UnitClass(int _health, int _defense){
        //instantiate stuff
    }

    public abstract void attack(int damage, int enemyHealth, int enemyDefense){
        //will be different for each class
    }

    public void die(){
        //everyone shares this one
    }
}


public abstract class Fighter extends UnitClass{
    public Fighter(int _health, int _defense){
        this.super(_health, _defense);
    }

    public abstract void fighterStuff(){

    }
}