public class B extends A {
	
	int i = -1;
	
	public B() {
		whoAmI();
		System.out.println(i);
		System.out.println(getI());
		System.out.println(super.getI());
	}
	
	public int getI() {
		return i;
	}

	public void setI(int i) {
		this.i = i;
	}

	public void whoAmI() {
		System.out.println("I'm B!");
	}
	
	public static void main(String[] args){
		A b = new B();
		System.out.println(b.i);
		System.out.println(b.getI());
		b.whoAmI();
		b.printABC();
	}
}

class A {
	
	int i = 1;
	
	public A() {
		whoAmI();
		System.out.println(i);
	}
	
	public int getI() {
		return i;
	}

	public void setI(int i) {
		this.i = i;
	}

	public void whoAmI() {
		System.out.println("I'm A!");
	}
	
	public void printABC() {
		int a = 2, b = 3, c = 0;
		a = b + (b = a) * 0;
		for (int j = 0; j < 10; j++) {
			c = c++;
		}
		System.out.println(a);
		System.out.println(b);
		System.out.println(c);
	}
}