abstract class A
{
void display()
{}
}
class B extends A
{
void display()
{}
psvm(String args[])
{

how can i instantiate the overridden method in class A
}
}

 A a1 = new b();

a1.display();

A a1= new B(); a1.display();

abstract class A


{

    void display()

    {

    }

}

class B extends A


{

    void display()

    {

        super.display();


        -----------------
    }

    public static void main(String args[])


    {

        B b1=new B();


        b1.display();
    }

}

all three answers above are correct. in 3rd one we are assigning object of B to reference of B itself. But in first and second answers we are assigning object of B to Reference of A. In all three cases JVM will invoke B's display() only.