Constructor not working after I am extending from another class

Question

I trying to run this code but I am getting stuck as to why the constructor is not working.

class Timber{

    String item_Name;
    int length;
    int width;
    String sku;
    
    public Timber(String name, int L, int W, String iSku){
        item_Name = name;
        length = L;
        width = W;
        sku = iSku;
    }
    
}


class Main extends Timber{

    public static void main(String[] args) {

        Timber small = new Timber("2 by 4", 2, 4, "1010");

        System.out.println(small.length);
        
    }

}

What does "not working" mean? Do you get a compile-time error, a run-time error, or unexpected output? — Dave Costa, Mar 01 '22 at 16:40
possible a duplicate of https://stackoverflow.com/questions/1644317/java-constructor-inheritance ? — Dave Costa, Mar 01 '22 at 16:43
If you have a class that extends your `Timber` class then in the constructor of your child class you should explicitly add a call to the constructor of the `Timber` class by using a key-word **super** as a **first line**. — Alexander Ivanchenko, Mar 01 '22 at 16:52
Thank you for the comments, I have figured it out. I am still learning so the help is much appreciated. — Mohammad Ishtiaq, Mar 01 '22 at 17:17

score -1 · Accepted Answer · answered Mar 01 '22 at 16:41

-1

Just add a default constructor in your Timber class.

public Timber() {}

answered Mar 01 '22 at 16:41

Steven Diamante

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Constructor not working after I am extending from another class

1 Answers1