What is the result(instanceof operator)? : Questions « Operators « SCJP

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interface Vessel {
}

interface Toy {
}

class Boat implements Vessel {
}

class Speedboat extends Boat implements Toy {
}


public class MainClass {
  public static void main(String[] args) {
    String s = "0";
    Boat b = new Boat();
    Boat b2 = new Speedboat();
    Speedboat s2 = new Speedboat();
    if ((b instanceof Vessel) && (b2 instanceof Toy))
      s += "1";
    if ((s2 instanceof Vessel) && (s2 instanceof Toy))
      s += "2";
    System.out.println(s);
  }
}