to access static variable of abstract class

[siva venkata prasad]

Hi All,

I have a scenario ..

An abstract class is having a static variable which should get incremented by 1 everytime when an object of this class type is created.. Can any one suggest how my abstract class code should be?

[Andrey Kozhanov]

Just use OOP features.

public abstract class A {
    private static int n;

    public A() {
        A.n++;
    }

    public static int getN() {
        return A.n;
    }
}

public class B extends A{}

public class C extends A{}

public class Test
    public static void main(String[] args) {
        A b = new B();
        System.out.println(A.getN()); // Prints 1
        A c = new C();
        System.out.println(A.getN()); // Prints 2
    }
}

[siva venkata prasad]

Thanks . It helped.