// Hack 1 
class Person {
    int heartbeats;
    String bloodtype;
    String eyecolor;

    public Car(int heartbeats, String bloodtype, String eyecolor) {
        this.heartbeats = heartbeats;
        this.bloodtype = bloodtype;
        this.eyecolor = eyecolor;
    }
    public void speak (){
        System.out.print("Hi my name is gerald");
    }
}
class dog extends Person {
    String tail; 
    public dog(int heartbeats, String bloodtype, String eyecolor, String tail){
        super(heartbeats,bloodtype,eyecolor,tail);
        this.tail = tail; 
    }

    //Hack 2
    @Override
    public void speak(){
        System.out.println("woof");
    }
}


 
class Test {
    public static void main(String[] args)
    {
        dog s = new dog();
    }
}
|       public Car(int heartbeats, String bloodtype, String eyecolor) {
invalid method declaration; return type required

Unit 8 - 2D Arrays