public class inherit_super4 {
    public static void main(String[] args) {
	System.out.println(new B(4).getX());
    }
}

class A {
    private int x=1;
    public A(int x) {this.x = x; getX(); }
    public int getX() {return x;}
}

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

    // Version 1:
    // public int getX() { return x+1; }
    // Won't work! $x$ is not accessible in subclass

    // Version 2:
    // public int getX() { return super.getX()+1; }   
    // Output: 5

    // Version 3: no overriding of getX()
    // Output: 4
}