What is the output of this program?

class A {

    int i;}

class B extends A {

        int j;

    void display() 

    {   super.i = j + 1;

        System.out.println(j + " " + i); }

}    

class inheritance {

    public static void main(String args[]) {

        B obj = new B();

       obj.i=1;

       obj.j=2;   

       obj.display(); }

}