package dk.itu.oop.testexamf2004;

class Test3 {
	public static void main(String[] args){
		// A a = new B();
		// A a = new A().new B();
		Incr a = new A().new B();
		a.incr(10);
		System.out.println(a);
	}
}

interface Incr { void incr(int d); }
class A implements Incr{
	int i;
	Incr that;
	public void incr(int d){
		if (d > 0){
			this.i += d;
			that.incr(d-1);
		}
	}
	public String toString(){
		return "A's i is: " + i;
	}

	class B implements Incr {
		int i;
		{A.this.that = this;}
		public void incr(int d){
			if (d > 0){
				this.i += d;
				A.this.incr(d/2);
			}
		}
		public String toString(){
			return A.this.toString()+ " B's i is: " + i;
		}
	}
}

class B extends A {
	int i;
	public void incr(int d){
		if (d > 0){
			this.i += d;
			super.incr(d/2);
		}
	}
	public String toString(){
		return super.toString()+ " B's i is: " + i;
	}
}