Call parameter constructor from default constructor without using this keyword

Question

I know that we can call a constructor from another constructor of the same class using the this keyword. But is it somehow possible to call the parameter constructor from within the default constructor without using this ?

I've tried:

class Example
{
    int x;

    public Example()
    {
         Example obj = new Example(2); 
    }

    public Example(int x)
    {
        this.x = x;
    }

}

But this doesn't let me assign value to x through the parameter constructor unless I use a getter method to get value from obj object. Is there a way to assign value to x by calling the parameter constructor only without using this? If not then why?

Why can't we do this?

Example(2); 

Answer 1

No, you can't.

Quoting JLS section 8.8.7 :

It is a compile-time error for a constructor to directly or indirectly invoke itself through a series of one or more explicit constructor invocations involving this .

You have to write:

public Example()
{
     this(2); // or this.x = 2
}