Calling constructor of a generic type

Question

If I have an abstract class like this:

public abstract class Item
{
    private Integer value;
    public Item()
    {
        value=new Integer(0);
    }
           


        

Answer 1

It's impossible to use T to call a constructor because if it would be possible than after a compilation you would get the code like this:

public class Box{
    Object item;
    public Box(){
        item = new Object();
    }
}

So if you would use this code and pass some object than you expect that there is the constructor of some specific type is called, but instead you get the Object constructor.