Class with non-default constructor

Question

I'm trying to create a LinearNode class with a non default contractor but passing the two arguments. I tried this but I'm getting an error. Any idea why?

public class LinearNode<T> (T elem, LinearNode<T> node){
        private LinearNode<T> next = node;
        private T element = elem;
    }

Thanks!

Tobias Ritzau · Accepted Answer · 2012-10-19 05:13:28Z

2

You have mixed the constructor with the class definition. The constructor is a special member function and should be defined more or less like a method (with no return type and the same name as the class).

public class LinearNode<T> {
    private LinearNode<T> next;
    private T element;

    LinearNode(T elem, LinearNode<T> node) {
        next = node;
        element = elem;
    }
}

edited Oct 19, 2012 at 5:13

answered Oct 18, 2012 at 22:23

Tobias Ritzau

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2 Comments

gnomed Over a year ago

correct answer, but could use some explanation. This site is not meant to be a place to have people write code for you.

Tobias Ritzau Over a year ago

Ok, I thought the example was so small that it explained it self. But you are right.

Jigar Joshi · Accepted Answer · 2012-10-18 22:22:01Z

1

You can't have (arguments) with class declaration

And also

you can't specify access specifier private for local variables

answered Oct 18, 2012 at 22:22

Jigar Joshi

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Comments

gnomed · Accepted Answer · 2012-10-18 22:25:20Z

0

Your constructor declaration needs to be separate from your class declaration. Like so:

public class LinearNode<T>{
    private LinearNode<T> next;
    private T element;
    LinearNode<T>(T elem, LinearNode<T> node){
        next = node;
        element = elem;
   }
}

answered Oct 18, 2012 at 22:25

gnomed

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