Where is a private instance variable of an abstract class created in the heap?

abstract class A {
    private int a;
    public A(int x) {
        a = x;
    }
    public int getA() {
        return a;
    }
}

class B extends A {
    public B(int x) {
        super(x);
    }
}

class TestB {
    public static void main(String args[]) {
        B b = new B(5);
        System.out.println(b.getA());
    }
}

In this situation when i say B b=new B(5); the super class constructor is called and the private instance variable is initialized to 5. So when i say getA() on class B's object reffered by b it returns 5. As the instance variable a of class A is private it will not be inherited by the class B . So where does the instance variable a is created(on heap) . Had it been a public it would have been a part of class B instance on Heap. Also class A is an abstarct class so it can not be instantiated.